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Butanol

Subclass of:

435 - Chemistry: molecular biology and microbiology

435041000 - MICRO-ORGANISM, TISSUE CELL CULTURE OR ENZYME USING PROCESS TO SYNTHESIZE A DESIRED CHEMICAL COMPOUND OR COMPOSITION

435132000 - Preparing oxygen-containing organic compound

435155000 - Containing hydroxy group

435157000 - Acyclic

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DocumentTitleDate
20090137016Process for rapid anaerobic digestion of biomass using microbes and the production of biofuels therefrom - A process for effecting anaerobic digestion of plant biomass, which entails the step of anaerobically digesting plant biomass with at least one species of rumen microorganisms.05-28-2009
20090203097STRAIN FOR BUTANOL PRODUCTION - Screening of fatty acid fed bacteria which are not natural butanol producers identified increased membrane cyclopropane fatty acid as providing improved butanol tolerance. Increasing expression of cyclopropane fatty acid synthase in the presence of the enzyme substrate that is either endogenous to the cell or fed to the cell, increased butanol tolerance. Bacterial strains with increased cyclopropane fatty acid synthase and having a butanol biosynthetic pathway are useful for production of butanol.08-13-2009
20110183392YEAST ORGANISM PRODUCING ISOBUTANOL AT A HIGH YIELD - There is disclosed a method of producing isobutanol. In an embodiment, the method includes providing a microorganism transformed with an isobutanol producing pathway containing at least one exogenous gene. The microorganism is selected to produce isobutanol from a carbon source at a yield of at least 10 percent theoretical. The method includes cultivating the microorganism in a culture medium containing a feedstock providing the carbon source, until isobutanol is produced. The method includes recovering the isobutanol. In one embodiment, the microorganism is a yeast with a Crabtree-negative phenotype. In another embodiment, the microorganism is a yeast microorganism with a Crabtree-positive phenotype. There is disclosed a microorganism for producing isobutanol. In an embodiment, the microorganism includes an isobutanol producing pathway containing at least one exogenous gene, and is selected to produce a recoverable quantity of isobutanol from a carbon source at a yield of at least 10 percent theoretical.07-28-2011
20100151545PRODUCTION OF BRANCHED-CHAIN ALCOHOLS BY PHOTOSYNTHETIC MICROORGANISMS - The present invention provides genes, polypeptides and expression constructs therefor, recombinant photosynthetic microorganisms, and method of use thereof, such as for the production of branched-chain alcohols (including 2-methyl-1-butanol, 3-methyl-1-butanol, and isobutanol) and derivatives thereof for a variety of uses.06-17-2010
20100112655ENHANCED PYRUVATE TO 2,3-BUTANEDIOL CONVERSION IN LACTIC ACID BACTERIA - A high flux of metabolites from pyruvate to 2,3-butanediol in 05-06-2010
20130084614METHODS OF REMOVING INHIBITORS FROM CELLULOSIC BIOMASS AND PRODUCING ALCOHOLS - A method of removing a fermentation inhibitor from an aqueous mixture of hydrolysis products from cellulosic biomass is disclosed. The method includes providing an aqueous mixture of hydrolysis products from cellulosic biomass, the hydrolysis products comprising at least one of pentose or hexose sugars and a fermentation inhibitor that inhibits a microorganism otherwise capable of fermenting pentose or hexose sugars; and at least partially extracting the fermentation inhibitor from the aqueous mixture with a first extractant by a first liquid-liquid extraction through a first porous membrane to provide a first extract and a raffmate, the first extractant having a water solubility of less than one percent by weight. In some embodiments, the aqueous mixture contains an insufficient amount of the microorganism to ferment the aqueous mixture. In some embodiments, the aqueous mixture is a fermentation broth. A membrane solvent extraction system for carrying out the method is also disclosed.04-04-2013
20130084613PROCESSING BIOMASS - Carbon-containing materials, such as biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) or coal are processed to produce useful products, such as fuels. For example, systems are described that can use feedstock materials, such as cellulosic and/or lignocellulosic materials and/or starchy materials, to produce ethanol.04-04-2013
20090155869ENGINEERED MICROORGANISMS FOR PRODUCING N-BUTANOL AND RELATED METHODS - A recombinant microorganism expressing at least a heterologous enzyme of an NADH-dependent pathway for conversion of a carbon source to n-butanol, metabolic intermediate and/or a derivative thereof and capable of producing n-butanol, a metabolic intermediate and/or a derivative thereof at a high yield and related methods. The recombinant microorganism engineered to inactivate a native enzyme of one or more pathways that compete with NADH-dependent heterologous pathway, and/or to balance the NADH-dependent heterologous pathway with respect to NADH production and consumption.06-18-2009
20090155870FERMENTIVE PRODUCTION OF FOUR CARBON ALCOHOLS - Methods for the fermentive production of four carbon alcohols are provided. Specifically, butanol, preferably 2-butanol is produced by the fermentive growth of a recombinant bacteria expressing a 2-butanol biosynthetic pathway. The recombinant microorganisms and methods of the invention can also be adapted to produce 2-butanone, an intermediate in the 2-butanol biosynthetic pathways disclosed herein. Specifically disclosed herein are the use of coenzyme B06-18-2009
20100129885Methods for the production of n-butanol - Embodiments of the present invention include methods for the production of four carbon alcohols, specifically n-butanol, by a consolidated bioprocessing approach for the conversion of cellulosic material to the desired end product. According to some embodiments, recombinant microbial host cells are provided, preferably 05-27-2010
20130089905METHOD TO REDUCE GHG EMISSIONS OF FUEL PRODUCTION - The present invention provides a method for reducing life cycle GHG emissions associated with production of a liquid fuel or fuel intermediate. The method comprises: fermenting sugar to produce biogenic carbon dioxide and the liquid fuel or fuel intermediate; collecting an amount of biogenic carbon dioxide generated from the fermentation; and supplying the biogenic carbon dioxide for use in one or more enhanced oil or gas recovery sites for displacement of geologic carbon dioxide. Further provided is a method comprising receiving an amount of carbon dioxide from an apparatus for delivering carbon dioxide to one or more enhanced oil or gas recovery sites so as to displace the use of geologic carbon dioxide at the site. The carbon dioxide received has the GHG emission attributes of the biogenic carbon dioxide introduced to the apparatus.04-11-2013
20090305370METHOD FOR PRODUCING BUTANOL USING TWO-PHASE EXTRACTIVE FERMENTATION - A method of making butanol from at least one fermentable carbon source that overcomes the issues of toxicity resulting in an increase in the effective titer, the effective rate, and the effective yield of butanol production by fermentation utilizing a recombinant microbial host wherein the butanol is extracted into specific organic extractants during fermentation12-10-2009
20090305369DELETION MUTANTS FOR THE PRODUCTION OF ISOBUTANOL12-10-2009
20130071901PROCESS FOR THE CONVERSION OF A XYLAN-CONTAINING FEED - A xylan-containing feed is contacted, in the first reactor essentially operated at plug flow, with an aqueous solution of an acid at a temperature in the range from equal to or more than 140° C. to equal to or less than 210° C. to produce an intermediate product. Then, the intermediate product is contacted, in the second reactor which comprises a continuously stirred tank reactor, with an aqueous solution of an acid at a temperature in the range from more than 130° C. to equal to or less than 200° C. to produce a final product.03-21-2013
20130059354ALKANOL - The present invention provides a process for the production of an alkanol (e.g. butanol) comprising converting a carbon source such as a biomass into a carboxylic acid or a derivative thereof using a microorganism, and electrochemically reducing said acid to said alkanol, as well as an apparatus for carrying out said process.03-07-2013
20120190090MICROBIAL CONVERSION OF PLANT BIOMASS TO ADVANCED BIOFUELS - The invention provides consolidated bioprocessing methods and host cells. The host cells are capable of directly converting biomass polymers or sunlight into alcohols or branched-chain hydrocarbons. In particular, the invention provides a method for producing alcohols or branched-chain hydrocarbons from a biomass polymer, including providing a genetically engineered host cell, culturing the host cell in a medium containing a biomass polymer as a carbon source such that recombinant nucleic acids in the cell are expressed, and extracting alcohols or branched-chain hydrocarbons from the culture.07-26-2012
20090269823BUTANOL DEHYDROGENASE ENZYME FROM THE BACTERIUM ACHROMOBACTER XYLOSOXIDANS - From a bacterial strain isolated from an environmental sample, after enrichment in medium containing 1-butanol as the carbon source, a new enzyme with butanol dehydrogenase activity was identified. The enzyme can convert butyraldehyde to 1-butanol, isobutyraldehyde to isobutanol, as well as 2-butanone to 2-butanol and thus is useful for biosynthesis of butanol in recombinant microbial hosts producing these substrates. The encoding gene, named sadB, was isolated from the strain identified as an isolate of 10-29-2009
20110020889YEAST ORGANISM PRODUCING ISOBUTANOL AT A HIGH YIELD - The present invention provides recombinant mircoorganisms comprising an isobutanol producing metabolic pathway and methods of using said recombinant microorganisms to produce isobutanol. In various aspects of the invention, the recombinant microorganisms may comprise a modification resulting in the reduction of pyruvate decarboxylase and/or glycerol-3-phosphate dehydrogenase activity. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 01-27-2011
20110020888METHOD FOR PREPARING BUTANOL THROUGH BUTYRYL-CoA AS AN INTERMEDIATE USING BACTERIA - The present invention relates to a method for producing butanol using a bacterium capable of biosynthesizing butanol from butyryl-CoA as an intermediate. More particularly, a method for producing butanol, the method comprising generating bytyryl-CoA in a bacterium which contains a gene coding for AdhE (an enzyme responsible for the conversion of butyryl-CoA to butanol) using various methods, and converting the butyryl-CoA into butanol.01-27-2011
20120115197Ketol-Acid Reductoisomerase Using NADH - Methods for the evolution of NADPH binding ketol-acid reductoisomerase enzymes to acquire NADH binding functionality are provided. Specific mutant ketol-acid reductoisomerase enzymes isolated from 05-10-2012
20120115196CORYNEFORM BACTERIUM TRANSFORMANT AND PROCESS FOR PRODUCING ISOBUTANOL USING THE SAME05-10-2012
20100081183ENHANCED DIHYDROXY-ACID DEHYDRATASE ACTIVITY IN LACTIC ACID BACTERIA - Lactic acid bacterial (LAB) cells were modified such that they have a specific activity of dihydroxy-acid dehydratase enzyme activity that is increased to about 0.1 μmol min04-01-2010
20110281315METHOD FOR PRODUCING 2-BUTANOL AND RECOMBINANT MICROORGANISM HAVING 2-BUTANOL PRODUCTION CAPACITY - This invention is intended to produce 2-butanol with excellent productivity via a fermentation process. Recombinant microorganisms into which the acetoacetyl-CoA synthase gene and a group of genes (i.e., genes involved in 2-propanol synthesis) encoding a set of enzymes synthesizing 2-propanol from acetoacetyl-CoA have been introduced are cultured, so that, in addition to 2-propanol, 2-butanol is produced at a high level in a medium.11-17-2011
20110281314METHODS, SYSTEMS AND COMPOSITIONS RELATED TO MICROBIAL BIO-PRODUCTION OF BUTANOL AND/OR ISOBUTANOL - Embodiments herein generally relate to methods, compositions, systems and uses for enabling bio-production of or increasing bio-production of alcohol molecules by microorganisms. Certain embodiments relate to compositions and methods enabling or increasing the bio-production of 4-carbon alcohol molecules by bacteria. In some embodiments, compositions and methods relate to introducing isobutyryl-CoA isomerase to a culture of microorganisms to enable or increase the bio-production of four-carbon alcohols. Variations of biosynthesis pathways for microbial bio-production of butanol and/or isobutanol are provided.11-17-2011
20100323418ORGANISMS FOR THE PRODUCTION OF ISOPROPANOL, n-BUTANOL, AND ISOBUTANOL - A non-naturally occurring microbial organism having an isopropanol pathway includes at least one exogenous nucleic acid encoding an isopropanol pathway enzyme. The pathway includes an enzyme selected from a 4-hydroxybutyryl-CoA dehydratase, a crotonase, a 3-hydroxybutyryl-CoA dehydrogenase, an acetoacetyl-CoA synthetase, an acetyl-CoA:acetoacetate-CoA transferase, an acetoacetyl-CoA hydrolase, an acetoacetate decarboxylase, and an acetone reductase. A non-naturally occurring microbial organism having an n-butanol pathway includes at least one exogenous nucleic acid encoding an n-butanol pathway enzyme. Other non-naturally occurring microbial organism have n-butanol or isobutanol pathways. The organisms are cultured to produce isopropanol, n-butanol, or isobutanol.12-23-2010
20100129886PRODUCTION OF ISOBUTANOL IN YEAST MITOCHONDRIA - Yeast cells with modified expression of certain enzyme activities in the mitochondria are described for isobutanol production. Modifications described provide an isobutanol biosynthesis pathway in the yeast mitochondria.05-27-2010
20090093035Blocking Sporulation by Inhibiting SPOIIE - We have shown that the control of solventogenesis and sporulation can be genetically uncoupled in 04-09-2009
20110136193METHOD FOR PRODUCING BUTANOL USING EXTRACTIVE FERMENTATION WITH OSMOLYTE ADDITION - A method is provided for producing butanol through microbial fermentation, in which the butanol product is removed during the fermentation by extraction into a water-immiscible organic extractant in the presence of at least one osmolyte at a concentration at least sufficient to increase the butanol partition coefficient relative to that in the presence of the osmolyte concentration of the basal fermentation medium and of an optional fermentable carbon source. The osmolyte may comprise a monosaccharide, a disaccharide, glycerol, sugarcane juice, molasses, polyethylene glycol, dextran, high fructose corn syrup, corn mash, starch, cellulose, and combinations thereof. Also provided is a method and composition for recovering butanol from a fermentation medium.06-09-2011
20110300596PREPARATION METHOD FOR ALCOHOL FROM CARBOXYLIC ACID BY ONE-STEP PROCESS - The present invention relates to a preparation method for alcohol by reacting carboxylic acid, alcohol, and hydrogen using hydrogenation catalysts. More specifically, the invention relates to a method for preparing alcohol by performing esterification and hydrocracking in a one-step process using hydrogenation catalysts instead of a two-step process. According to the invention, alcohol is prepared from carboxylic acid through esterification and hydrogenation in a one-step process using hydrogenation catalysts. Therefore, production costs and by-product treatment costs can be reduced in comparison to a two-step process. In addition, the invention is effective and economical since it can produce alcohol at relatively high yield by a simple process. Further, the invention allows high yield at relatively lower pressure when compared to alcohol production from carboxylic acid through hydrogenation without esterification and solves the problems of leaching by catalysts.12-08-2011
20120107890RECOVERY OF HIGHER ALCOHOLS FROM DILUTE AQUEOUS SOLUTIONS - This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.05-03-2012
20110287500CYTOSOLIC ISOBUTANOL PATHWAY LOCALIZATION FOR THE PRODUCTION OF ISOBUTANOL - The present invention provides recombinant microorganisms comprising isobutanol producing metabolic pathway with at least one isobutanol pathway enzyme localized in the cytosol, wherein said recombinant microorganism is selected to produce isobutanol from a carbon source. Methods of using said recombinant microorganisms to produce isobutanol are also provided. In various aspects of the invention, the recombinant microorganisms may comprise a cytosolically active isobutanol pathway enzymes. In some embodiments, the invention provides mutated, modified, and/or chimeric isobutanol pathway enzymes with cytosolic activity. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 11-24-2011
20110294179METHOD FOR PRODUCING BUTANOL USING TWO-PHASE EXTRACTIVE FERMENTATION - A method of making butanol from at least one fermentable carbon source that overcomes the issues of toxicity resulting in an increase in the effective titer, the effective rate, and the effective yield of butanol production by fermentation utilizing a recombinant microbial host wherein the butanol is extracted into specific organic extractants during fermentation12-01-2011
20100167365YEAST WITH INCREASED BUTANOL TOLERANCE INVOLVING HIGH OSMOLARITY/GLYCEROL RESPONSE PATHWAY - Increasing tolerance to butanol in yeast has been accomplished by increasing activity of the high osmolarity/glycerol response pathway. Yeast with increased expression of PBS2p, a mitogen activated protein kinase kinase of the MAPK module of the high osmolarity/glycerol response pathway may be used for improved butanol production.07-01-2010
20100120107PRODUCTION OF BIOFUEL AND PROTEIN FROM A RAW MATERIAL - The present invention relates to a method for providing an isolated biofuel and a purified protein product from a raw material suitable for the production of the biofuel or a derivative of said raw material. The method comprises the steps of: (i) subjecting the raw material or a derivative of said raw material to at least one first treatment liberating the biofuel from the raw material or the derivative of said raw material, (ii) isolating the biofuel liberated in step (i) obtaining the isolated biofuel, (iii) subjecting the raw material or a derivative of said raw material to at least one second treatment providing a material suspension, and (iv) subjecting the material suspension from step (iii) to an expanded bed adsorption process obtaining the purified protein product.05-13-2010
20120034666METHODS OF INCREASING DIHYDROXY ACID DEHYDRATASE ACTIVITY TO IMPROVE PRODUCTION OF FUELS, CHEMICALS, AND AMINO ACIDS - The present invention is directed to recombinant microorganisms comprising one or more dihydroxyacid dehydratase (DHAD)-requiring biosynthetic pathways and methods of using said recombinant microorganisms to produce beneficial metabolites derived from said DHAD-requiring biosynthetic pathways. In various aspects of the invention, the recombinant microorganisms may be engineered to overexpress one or more polynucleotides encoding one or more Nfs1 proteins or homologs thereof and/or one or more polynucleotides encoding one or more Isd11 proteins or homologs thereof. In some embodiments, the recombinant microorganisms may comprise a cytosolically localized DHAD enzyme. In additional embodiments, the recombinant microorganisms may comprise a mitochondrially localized DHAD enzyme. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 02-09-2012
20100285550Delignification of Lignocellulose-Containing Material - The invention relates to processes of delignifying lignocellulose-containing material, wherein the lignocellulose-containing material is treated with a delignification catalyst and a lignin solubilizing agent.11-11-2010
20100143993PROCESS FOR FERMENTIVE PREPARATIONFOR ALCOLHOLS AND RECOVERY OF PRODUCT - This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.06-10-2010
20100086982PROCESS FOR THE BIOLOGICAL PRODUCTION OF n-BUTANOL WITH HIGH YIELD - The present invention provides a method for the biological production of n-butanol at high yield from a fermentable carbon source. In one aspect of the present invention, a process for the conversion of glucose to n-butanol is achieved by the use of a recombinant organism comprising a host 04-08-2010
20120270288PROCESS TO PRODUCE ORGANIC COMPOUNDS FROM SYNTHESIS GASES - At least one isolated microorganism and a fermentation method to convert hydrogen gas, carbon dioxide gas, and/or carbon monoxide gas to a lower alkyl alcohol and/or carboxylic acid and to produce at least 2% by volume of the lower alkyl alcohol or carboxylic acid in an aqueous-based medium.10-25-2012
20110201073Reduced by-product accumulation for improved production of isobutanol - The present invention relates to recombinant microorganisms comprising biosynthetic pathways and methods of using said recombinant microorganisms to produce various beneficial metabolites. In various aspects of the invention, the recombinant microorganisms may further comprise one or more modifications resulting in the reduction or elimination of 3 keto-acid (e.g., acetolactate and 2-aceto-2-hydroxybutyrate) and/or aldehyde-derived by-products. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 08-18-2011
20090176288Methods and Compositions for Butanol Production - A butanol producing cell and a method for the production of butanol are provided. Butanol producing cells comprising a butanol synthesis system or butanol export proteins may be used to enhance the production of butanol from a carbon substrate composition.07-09-2009
20110171706Integrated Process for Production of Alcohol from Syngas and Removal of CO2 - A process for producing alcohol from syngas integrates the alcohol recovery with the removal of CO07-14-2011
20100279370METHOD FOR CONTROLLING BUTANOL CONCENTRATION IN FERMENTATION BROTH - The present invention relates to a two stage process to control the butanol concentration from fermentation broth.11-04-2010
20110201072Modified alcohol dehydrogenases for the production of fuels and chemicals - The present invention relates to recombinant microorganisms comprising biosynthetic pathways and methods of using said recombinant microorganisms to produce various beneficial metabolites. In various aspects of the invention, the recombinant microorganisms may further comprise one or more modifications resulting in the reduction or elimination of 3 keto-acid (e.g., acetolactate and 2-aceto-2-hydroxybutyrate) and/or aldehyde-derived by-products. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 08-18-2011
20100143997ENGINEERED MICROORGANISMS CAPABLE OF PRODUCING TARGET COMPOUNDS UNDER ANAEROBIC CONDITIONS - The present invention is generally provides recombinant microorganisms comprising engineered metabolic pathways capable of producing C3-C5 alcohols under aerobic and anaerobic conditions. The invention further provides ketol-acid reductoisomerase enzymes which have been mutated or modified to increase their NADH-dependent activity or to switch the cofactor preference from NADPH to NADH and are expressed in the modified microorganisms. In addition, the invention provides isobutyraldehyde dehydrogenase enzymes expressed in modified microorganisms. Also provided are methods of producing beneficial metabolites under aerobic and anaerobic conditions by contacting a suitable substrate with the modified microorganisms of the present invention.06-10-2010
20080274525METHOD FOR THE PRODUCTION OF 2-BUTANOL - A method for the production of 2-butanol by fermentation using a microbial production host is disclosed. The method employs a reduction in temperature during the fermentation process that results in a more robust tolerance of the production host to the butanol product.11-06-2008
20080274524METHOD FOR THE PRODUCTION OF 1-BUTANOL - A method for the production of 1-butanol by fermentation using a microbial production host is disclosed. The method employs a reduction in temperature during the fermentation process that results in a more robust tolerance of the production host to the butanol product.11-06-2008
20080274526METHOD FOR THE PRODUCTION OF ISOBUTANOL - A method for the production of isobutanol by fermentation using a microbial production host is disclosed. The method employs a reduction in temperature during the fermentation process that results in a more robust tolerance of the production host to the butanol product.11-06-2008
20100143998SYSTEMS AND METHODS FOR PRODUCING BIOFUELS AND RELATED MATERIALS - cells (American Type Culture Collection 70039406-10-2010
20100143995Process for Fermentive Preparation of Alcohols and Recovery of Product - This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.06-10-2010
20100143994PROCESS FOR FERMENTIVE PREPARATION OF ALCOHOLS AND RECOVERY OF PRODUCT - This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.06-10-2010
20100143992Process for Fermentive Preparation of Alcohols and Recovery of Product - This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.06-10-2010
20110207191METHOD FOR PRODUCING ALCOHOL USING BIOETHANOL WASTE FERMENTED SOLUTION - Provided is a method for producing alcohol or hydrogen gas comprising culturing alcohol-producing microorganisms in a waste fermented solution generated from the bioethanol production process. Glycerol included in the waste fermented solution generated from the bioethanol production process is converted by the microorganisms to butanol under an anaerobic condition. Since the waste fermented solution generated from the bioethanol production process can be utilized as a source of a biofuel, environmental and energy problems can be solved at once.08-25-2011
20100151544SYSTEMS AND METHODS FOR SELECTIVE ALCOHOL PRODUCTION - The present invention relates to metabolic engineering issues related to flux determinism in core primary-metabolism pathways. In particular, the present invention relates to alcohol (e.g., butanol) production and selectivity, and related methods thereof.06-17-2010
20090081746BIOFUEL PRODUCTION BY RECOMBINANT MICROORGANISMS - Provided herein are metabolically-modified microorganisms useful for producing biofuels. More specifically, provided herein are methods of producing high alcohols including isobutanol, 1-butanol, 1-propanol, 2-methyl-1-butanol, 3-methyl-1-butanol and 2-phenylethanol from a suitable substrate.03-26-2009
20110143407Continuous Single Vessel Butanol Synthesis by Fermentation - The present invention describes a method for producing butanol by fermentation of carbohydrates using mixed populations of acidogenic-phase cells and solventogenic-phase cells of 06-16-2011
20090221047WEB COMPRISING FINE FIBER AND BIOACTIVE PARTICULATE AND USES THEREOF - The assemblies of the invention can comprise a fine fiber layer forming a multilamellar web or matrix, having dispersed within the fine fiber layer a bioactive particulate material, including cells, enzymes or microorganisms. Fluid that flows through the assemblies of the invention can have any material dispersed or dissolved in the fluid react with, be absorbed by, or adsorbed onto, the bioactive particulate within the nanofiber layer. The assemblies of the invention can be used to treat or purify fluid streams. The assemblies of the invention can be used in conjunction with a bioreactor system, a bioartificial organ, or a culture container.09-03-2009
20090239275FERMENTIVE PRODUCTION OF FOUR CARBON ALCOHOLS - Methods for the fermentive production of four carbon alcohols are provided. Specifically, butanol, preferably 2-butanol is produced by the fermentive growth of a recombinant bacteria expressing a 2-butanol biosynthetic pathway. The recombinant microorganisms and methods of the invention can also be adapted to produce 2-butanone, an intermediate in the 2-butanol biosynthetic pathways disclosed herein.09-24-2009
20120196341FERMENTIVE PRODUCTION OF FOUR CARBON ALCOHOLS - Methods for the fermentive production of four carbon alcohols are provided. Specifically, butanol, preferably 2-butanol is produced by the fermentive growth of a recombinant bacteria expressing a 2-butanol biosynthetic pathway. The recombinant microorganisms and methods of the invention can also be adapted to produce 2-butanone, an intermediate in the 2-butanol biosynthetic pathways disclosed herein.08-02-2012
20100151546SYSTEMS AND METHODS FOR PRODUCING BIOFUELS AND RELATED MATERIALS - cells (American Type Culture Collection 70039406-17-2010
20100216200SYSTEMS AND METHODS FOR PRODUCING BIOFUELS AND RELATED MATERIALS - cells (American Type Culture Collection 70039408-26-2010
20100255552Butanal Production Using Engineered Streptomyces Coelicolor - A method of producing butanal by optimizing the growth of 10-07-2010
20100136641STRAIN FOR BUTANOL PRODUCTION WITH INCREASED MEMBRANE UNSATURATED TRANS FATTY ACIDS - Bacteria that are not natural butanol producers were found to have increased tolerance to butanol when the membrane content of unsaturated trans fatty acids was increased. Feeding cells with unsaturated trans fatty acids increased their concentration in the membrane, which may also be accomplished by expressing a fatty acid cistrans isomerase.06-03-2010
20100136640ENHANCED BUTANOL PRODUCING MICROORGANISMS AND METHOD FOR PREPARING BUTANOL USING THE SAME - The present invention relates to a recombinant mutant microorganism having enhanced butanol producing capacity and a method for producing butanol using the same. In the microorganism, genes coding for enzymes responsible for the biosynthesis of lactate, ethanol and/or acetate are deleted or attenuated and genes coding for enzymes involved in butanol biosynthesis are introduced and amplified.06-03-2010
20100120106Process for producing lower alkyl alcohols from cellulosic biomass using microorganisms - At least one isolated microorganism, which converts at least 10% by weight, and preferably 50% by weight, of cellulosic biomass to a lower alkyl alcohol by direct digestion, and which produces at least 4% by volume of the lower alkyl alcohol in an aqueous-based digestion medium.05-13-2010
20120142065PROCESSING BIOMASS - Biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) is processed to produce useful products, such as fuels. For example, systems are described that can use feedstock materials, such as cellulosic and/or lignocellulosic materials, to produce ethanol and/or butanol, e.g., by fermentation.06-07-2012
20100221801YEAST WITH INCREASED BUTANOL TOLERANCE INVOLVING A MULTIDRUG EFFLUX PUMP GENE - Increasing tolerance to butanol in yeast has been accomplished by decreasing activity of Pdr5p encoded by an endogenous PDR5 gene. A deletion mutation of the PDR5 gene led to improved growth yield in the presence of butanol. Yeast cells with reduced Pdr5p activity, or other multidrug resistance ATP-binding cassette transporter protein activity encoded by CDR1 or BFR1, and a butanol biosynthetic pathway may be used for improved butanol production09-02-2010
20090111154BUTANOL PRODUCTION BY RECOMBINANT MICROORGANISMS - Provided are microorganisms that catalyze the synthesis of biofuels from a suitable substrate such as glucose. Also provided are methods of generating such organisms and methods of synthesizing biofuels using such organisms. Provided are microorganisms comprising non-naturally occurring metabolic pathway for the production of higher alcohols.04-30-2009
20110129887IMMOBILIZED PRODUCT TOLERANT MICROORGANISMS - Methods for adapting or selecting microorganisms with increased product tolerance are provided Additionally, a bioreactor capable of operation in either packed bed or fluidized bed is disclosed along with methods to use the bioreactor for culturing microorganisms adapted or selected increased product tolerance06-02-2011
20130130342Yeast Strain for Production of Four Carbon Alcohols - Yeast cells with a reduced general control response to amino acid starvation were found to have increased tolerance to butanol in the growth medium. The reduced response was engineered by genetic modification of a gene involved in the response, a GCN gene, to eliminate activity of the encoded protein. Yeast strains with an engineered butanol biosynthetic pathway and a genetic modification in a gene involved in the general control response to amino acid starvation, which have increased butanol tolerance, are useful for production of butanol.05-23-2013
20100297718Processes of Producing Fermentation Products - The invention relates to processes of fermenting plant material into a fermentation product using a fermenting organism, wherein one or more compounds capable of activating a sirtuin protein is present during fermentation.11-25-2010
20100297717METHOD OF PRODUCING ALCOHOL IN THE BIOREFINERY CONTEXT - The present invention describes a method of producing alcohol from pretreated lignocellulosic biomass wherein the enzymatic hydrolysis stage is carried out with cellulolytic and/or hemicellulolytic enzymes produced using at least one effluent from another ethanol production process using a sugar plant as the feedstock. This method can be integrated in a method of producing alcohol from cellulosic or lignocellulosic materials, referred to as second-generation method, comprising the following stages: 11-25-2010
20110111472FERMENTIVE PRODUCTION OF FOUR CARBON ALCOHOLS - Methods for the fermentative production of four carbon alcohols is provided. Specifically, butanol, preferably isobutanol is produced by the fermentative growth of a recombinant bacterium expressing an isobutanol biosynthetic pathway.05-12-2011
20100143996Continuous Single Vessel Butanol Synthesis By Fermentation - The present invention describes a method for producing butanol by fermentation of carbohydrates using mixed populations of acidogenic-phase cells and solventogenic-phase cells of 06-10-2010
20100221802METHOD FOR PRODUCING BUTANOL USING TWO-PHASE EXTRACTIVE FERMENTATION - A method of making butanol from at least one fermentable carbon source that overcomes the issues of toxicity resulting in an increase in the effective titer, the effective rate, and the effective yield of butanol production by fermentation utilizing a recombinant microbial host wherein the butanol is extracted into specific organic extractants during fermentation09-02-2010
20110177571DESIGNER CALVIN-CYCLE-CHANNELED PRODUCTION OF BUTANOL AND RELATED HIGHER ALCOHOLS - Designer Calvin-cycle-channeled and photosynthetic NADPH-enhanced pathways, the associated designer genes and designer transgenic photosynthetic organisms for photobiological production of butanol and related higher alcohols from carbon dioxide and water are provided. The butanol and related higher alcohols include 1-butanol, 2-methyl-1-butanol, isobutanol, 3-methyl-1-butanol, 1-hexanol, 1-octanol, 1-pentanol, 1-heptanol, 3-methyl-1-pentanol, 4-methyl-1-hexanol, 5-methyl-1-heptanol, 4-methyl-1-pentanol, 5-methyl-1-hexanol, and 6-methyl-1-heptanol. The designer photosynthetic organisms such as designer transgenic oxyphotobacteria and algae comprise designer Calvin-cycle-channeled and photosynthetic NADPH-enhanced pathway gene(s) and biosafety-guarding technology for enhanced photobiological production of butanol and related higher alcohols from carbon dioxide and water.07-21-2011
20100062505BUTANOL PRODUCTION BY METABOLICALLY ENGINEERED YEAST - There are disclosed metabolically-engineered yeast and methods of producing n-butanol. In an embodiment, metabolically-engineered yeast is capable of metabolizing a carbon source to produce n-butanol, at least one pathway produces increased cytosolic acetyl-CoA relative to cytosolic acetyl-CoA produced by a wild-type yeast, and at least one heterologous gene encodes and expresses at least one enzyme for a metabolic pathway capable of utilizing NADH to convert acetyl-CoA to n-butanol. In another embodiment, a method of producing n-butanol includes (a) providing metabolically-engineered yeast capable of metabolizing a carbon source to produce n-butanol, at least one pathway produces increased cytosolic acetyl-CoA relative to cytosolic acetyl-CoA produced by a wild-type yeast, and at least one heterologous gene encodes and expresses at least one enzyme for a metabolic pathway utilizing NADH to convert acetyl-CoA to n-butanol; and (b) culturing the yeast to produce n-butanol. Other embodiments are also disclosed.03-11-2010
20110097775PRODUCTION OF BUTANOL - The present invention relates to methods for making recombinant thermophilic bacteria of the family Bacillaceae. In particular, recombinant thermophilic Bacillaceae are provided which have been engineered to produce butanol and/or butyrate. Preferably, heterologous nucleic acid molecules encoding one or more butanol or butyrate biosynthetic pathway enzymes are introduced into a thermophilic Bacillaceae in order to produce a recombinant thermophilic Bacillaceae which is capable of producing butanol. The Bacillaceae is preferably of the genus 04-28-2011
20110097774VISIBLE LIGHT-ENHANCED ENZYMATIC PROMOTION OF HYDROCARBON REACTIONS - A photocatalytic method for the hydroxylation of alkanes involving the use of a Cytochrome P450 class of enzyme as a catalyst which is activated by exposure to a pulsed blue light emitted from a light emitting diode (LED) at 450 nm±25 nm.04-28-2011
20110097773METHOD FOR PRODUCING BUTANOL USING EXTRACTIVE FERMENTATION - A method for producing butanol through microbial fermentation, in which the butanol product is removed by extraction into a water-immiscible extractant composition comprising a first solvent and a second solvent, is provided. The first solvent is selected from the group consisting of C04-28-2011
20110076733CYTOSOLIC ISOBUTANOL PATHWAY LOCALIZATION FOR THE PRODUCTION OF ISOBUTANOL - The present invention provides recombinant microorganisms comprising isobutanol producing metabolic pathway with at least one isobutanol pathway enzyme localized in the cytosol, wherein said recombinant microorganism is selected to produce isobutanol from a carbon source. Methods of using said recombinant microorganisms to produce isobutanol are also provided. In various aspects of the invention, the recombinant microorganisms may comprise a cytosolically active isobutanol pathway enzymes. In some embodiments, the invention provides mutated, modified, and/or chimeric isobutanol pathway enzymes with cytosolic activity. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 03-31-2011
20110076732Process, Plant, and Butanol From Lignocellulosic Feedstock - This invention relates to a process, a plant, and butanol made of or derived from lignocellulosic feedstock. The process includes the step of depolymerizing lignocellulosic material to form pentose and a remainder. The process also includes the step of converting the pentose to butanol material and using the remainder for generation of power or further downstream conversion.03-31-2011
20100081182ENHANCED IRON-SULFUR CLUSTER FORMATION FOR INCREASED DIHYDROXY-ACID DEHYDRATASE ACTIVITY IN LACTIC ACID BACTERIA - Lactic acid bacteria expressing dihydroxyacid dehydratase polypeptides with increased specific activity are disclosed. The lactic acid bacteria comprise recombinant genes encoding iron-sulfur cluster forming proteins.04-01-2010
20110053235FERMENTATIVE PRODUCTION OF ISOBUTANOL WITH YEAST - The invention relates to a yeast cell producing isobutanol, characterized in that the cell has an increased metabolic flow of material from pyruvate and acetolactate, 2,3-dihydroxy isovalerate, 2-ketoisovalerate, isobutyraldehyde to isobutanol, in that at least one of the genes coding the enzymes, which are involved in this conversion, is over-expressed, and without any of said genes being heterologous to said yeast cell, and to a method for the production of isobutanol using yeast cells, comprising the provision of the yeast cells according to the invention, and bringing the yeast cell into contact with a fermentable carbon source.03-03-2011
20110027845ENHANCED ETHANOL AND BUTANOL PRODUCING MICROORGANISMS AND METHOD FOR PREPARING ETHANOL AND BUTANOL USING THE SAME - The present invention relates to a recombinant microorganism having an enhanced ability to produce ethanol and butanol and a method for preparing ethanol and butanol using the same, and more particularly to a recombinant microorganism having an enhanced ability to produce ethanol and butanol, into which a gene encoding CoA transferase and a gene encoding alcohol/aldehyde dehydrogenase are introduced, and to a method for preparing ethanol and butanol using the same. The recombinant microorganism according to the present invention, obtained by manipulating metabolic pathways of microorganisms, is capable of producing butanol and ethanol exclusively without producing any byproduct, and thus is useful as a microorganism producing industrial solvents and transportation fuel.02-03-2011
20100285549RECOMBINANT MICROORGANISM HAVING BUTANOL PRODUCTION CAPACITY AND BUTANOL PRODUCTION METHOD - This invention relates to a recombinant microorganism having improved butanol production capacity and butanol production with the use of such recombinant microorganism with good efficiency. In this invention, the acetoacetyl-CoA synthase gene encoding an enzyme capable of synthesizing acetoacetyl-CoA from malonyl-CoA and acetyl-CoA and a group of genes involved in butanol biosynthesis that enables synthesis of butanol from acetoacetyl-CoA are introduced into a host microorganism.11-11-2010
20110136192FLUX TO ACETOLACTATE-DERIVED PRODUCTS IN LACTIC ACID BACTERIA - An engineering method was developed to allow genetic modification and isolation of lactic acid bacteria cells that lack lactate dehydrogenase and acetolactate decarboxylase activities. In cells with these modifications and an isobutanol biosynthetic pathway, improved production of isobutanol was observed.06-09-2011
20100330636PROCESS FOR THE BIOLOGICAL PRODUCTION OF N-BUTANOL WITH HIGH YIELD - The present invention provides a method for the biological production of n-butanol at high yield from a fermentable carbon source. In one aspect of the present invention, a process for the conversion of glucose to n-butanol is achieved by the use of a recombinant organism comprising a host 12-30-2010
20100330637Designer Organisms for Photobiological Butanol Production from Carbon Dioxide and Water - The present invention provides a biosafety-guarded photobiological butanol production technology based on designer transgenic plants, designer algae, designer blue-green algae (cyanobacteria and oxychlorobacteria), or designer plant cells. The designer photosynthetic organisms are created such that the endogenous photobiological regulation mechanism is tamed, and the reducing power (NADPH) and energy (ATP) acquired from the photosynthetic process are used for synthesis of butanol (CH12-30-2010
20100167364YEAST WITH INCREASED BUTANOL TOLERANCE INVOLVING CELL WALL INTEGRITY PATHWAY - Increasing tolerance to butanol in yeast has been accomplished by increasing activity of the cell wall integrity pathway. Yeast with increased expression of SLT2p, a mitogen activated protein kinase of the MAPK module of the cell wall integrity pathway had increased tolerance to isobutanol. These yeast may be used for improved butanol production.07-01-2010
20090203098INDIRECT PRODUCTION OF BUTANOL AND HEXANOL - A process for the conversion of carbohydrates from any of a number of sources into butanol and hexanol for fuel or chemical use is disclosed. The process includes conducting a homoacetogenic fermentation to produce an acetic acid intermediate which is chemically converted to ethanol. The ethanol and a remaining portion of the acetic acid intermediate are used as a substrate in an acidogenic fermentation to produce butyric and caproic acid intermediates which are then chemically converted to butanol and hexanol.08-13-2009
20110262982ACETOLACTATE SYNTHASE HAVING 2-KETOISOVALERATE DECARBOXYLASE ACTIVITY AND USES THEREOF - Provided herein are metabolically-modified microorganisms useful for producing biofuels. More specifically, provided herein are methods of producing high alcohols including isobutanol, 1-butanol, 1-propanol, 2-methyl-1-butanol, 3-methyl-1-butanol, and 2-phenylethanol from a suitable substrate and a recombinant acetolactate synthase having both synthase and decarboxylase activity.10-27-2011
20100261241METHODS FOR THE PRODUCTION OF N-BUTANOL - Embodiments of the present invention include methods for the production of four carbon alcohols, specifically n-butanol, by a consolidated bioprocessing approach for the conversion of cellulosic material to the desired end product. According to some embodiments, recombinant microbial host cells are provided, preferably 10-14-2010
20100209986BIOFUEL PRODUCTION BY RECOMBINANT MICROORGANISMS - Provided herein are metabolically-modified microorganisms useful for producing biofuels. More specifically, provided herein are methods of producing high alcohols including isobutanol, 1-butanol, 1-propanol, 2-methyl-1-butanol, 3-methyl-1-butanol and 2-phenylethanol from a suitable substrate.08-19-2010
20090215137METHODS FOR THE ECONOMICAL PRODUCTION OF BIOFUEL PRECURSOR THAT IS ALSO A BIOFUEL FROM BIOMASS - Methods for producing a biofuel precursor are provided. Also provided are biocatalysts that convert a feedstock to a biofuel precursor.08-27-2009
20100159546METABOLIC ENGINEERING OF YEASTS FOR THE PRODUCTION OF 1-BUTANOL - The present invention provides genetically modified yeast cells, and methods of using those yeast cells, to produce 1-butanol. The yeast cell can be selected from the genera 06-24-2010
20100129887INCREASED PRODUCTION OF ISOBUTANOL IN YEAST WITH REDUCED MITOCHONDRIAL AMINO ACID BIOSYNTHESIS - Yeast cells with reduced activity of certain enzymes involved in branched chain amino acid biosynthesis in yeast mitochondria are described. Target enzymes include threonine deaminase, isopropylmalate synthase, and optionally branched chain amino acid transaminase.05-27-2010
20090275097PRIMARY ALCOHOL PRODUCING ORGANISMS - The invention provides a non-naturally occurring microbial organism having a microbial organism having at least one exogenous gene insertion and/or one or more gene disruptions that confer production of primary alcohols. A method for producing long chain alcohols includes culturing these non-naturally occurring microbial organisms.11-05-2009
20100151543RECOMBINANT MICROORGANISMS HAVING MODIFIED PRODUCTION OF ALCOHOLS AND ACIDS - Recombinant acetogenic Clostridia are engineered to modulate production of aliphatic C06-17-2010
20120040427Process for the production of ethanol and butanol - The present invention relates to a process for the production of ethanol and butanol from biomass, and in particular to a process for the production of ethanol and butanol using two separate fermentation steps, said process comprising: a) passing a biomass feedstock to a first fermentation step, b) in said first fermentation step subjecting the biomass feedstock to anaerobic fermentation at a pH below 6.0 and at a temperature in the range 20 to 700° C. and so as to convert the biomass to a product predominantly comprising acetic acid and butyric acid with at least a 2:1 ratio by weight of acetic acid to butyric acid, c) treating the product stream of step (b) to separate a solution comprising the acetic acid and butyric acid by: (i) separating a solution comprising the acetic acid and butyric acid from any residual solids and (ii) separating bacteria and/or pasteurising or sterilising the solution from the first fermentation step, and d) in a second fermentation step fermenting the solution comprising the acetic acid and butyric acid from step (c) to form ethanol and butanol.02-16-2012
20120064590RECOVERY OF HIGHER ALCOHOLS FROM DILUTE AQUEOUS SOLUTIONS - This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.03-15-2012
20120301936RECOMBINANT MUTANT MICROORGANISMS HAVING INCREASED ABILITY TO PRODUCE ALCOHOLS AND METHOD OF PRODUCING ALCOHOLS USING THE SAME - The present invention relates to recombinant mutant microorganisms having an increased ability to produce alcohol and a method of producing alcohol using the same, and more particularly to recombinant mutant microorganisms which have an increased ability to produce butanol, ethanol, isopropanol or mixed alcohols, which can be used as fuel, while producing little or no producing acetone as a byproduct, and to a method of producing butanol, ethanol, isopropanol or mixed alcohols using the same. The inventive recombinant mutant microorganisms having an increased ability to produce butanol or mixed alcohols and to remove acetone are those in which genes that encode enzymes involved in producing butanol from butyryl-CoA or butylaldehyde and in producing isopropanol from acetone were amplified or introduced in host microorganisms. The recombinant mutant microorganisms produce little or no byproducts such as acetone and can have an increased ability to produce alcohols, as a result of manipulating metabolic pathways. Thus, the recombinant mutant microorganisms are useful for industrial production of butanol or mixed alcohols comprising butanol and isopropanol.11-29-2012
20120149080YEAST PRODUCTION CULTURE FOR THE PRODUCTION OF BUTANOL - High cell density cultures of yeast were found to have higher tolerance for butanol in the medium. The high cell density yeast cultures had greater survival and higher glucose utilization than cultures with low cell densities. Production of butanol using yeast in high cell density cultures is thus beneficial for improving butanol production.06-14-2012
20110318799YEAST ORGANISM PRODUCING ISOBUTANOL AT A HIGH YIELD - There is disclosed a method of producing isobutanol. In an embodiment, the method includes providing a microorganism transformed with an isobutanol producing pathway containing at least one exogenous gene. The microorganism is selected to produce isobutanol from a carbon source at a yield of at least 10 percent theoretical. The method includes cultivating the microorganism in a culture medium containing a feedstock providing the carbon source, until isobutanol is produced. The method includes recovering the isobutanol. In one embodiment, the microorganism is a yeast with a Crabtree-negative phenotype. In another embodiment, the microorganism is a yeast microorganism with a Crabtree-positive phenotype. There is disclosed a microorganism for producing isobutanol. In an embodiment, the microorganism includes an isobutanol producing pathway containing at least one exogenous gene, and is selected to produce a recoverable quantity of isobutanol from a carbon source at a yield of at least 10 percent theoretical.12-29-2011
20110318798REMOVAL OF INHIBITORS OF MICROBIAL FERMENTATION FROM INHIBITOR-CONTAINING COMPOSITIONS - Methods are provided for conditioning an inhibitor-containing composition, such as a cellulosic biomass hydrolysate, to remove inhibitors of microbial growth and/or product production. The methods include precipitation of inhibitors by formation of complexes with metal salts, such as aluminum sulfate and ferric chloride.12-29-2011
20120045809Engineered Microorganisms for the Production of One or More Target Compounds - The present invention provides recombinant microorganisms comprising an isobutanol producing metabolic pathway and methods of using said recombinant microorganisms to produce isobutanol. In various aspects of the invention, the recombinant microorganisms comprise isobutanol producing metabolic pathway with one or more isobutanol pathway enzymes localized in the mitochondria. In various embodiments described herein, the recombinant microorganisms may be Crabtree-negative yeast microorganisms, microorganisms of the 02-23-2012
20120015417METHODS OF INCREASING DIHYDROXY ACID DEHYDRATASE ACTIVITY TO IMPROVE PRODUCTION OF FUELS, CHEMICALS, AND AMINO ACIDS - The present invention is directed to recombinant microorganisms comprising one or more dihydroxyacid dehydratase (DHAD)-requiring biosynthetic pathways and methods of using said recombinant microorganisms to produce beneficial metabolites derived from said DHAD-requiring biosynthetic pathways. In various aspects of the invention, the recombinant microorganisms may be engineered to overexpress one or more polynucleotides encoding one or more Aft proteins or homologs thereof. In some embodiments, the recombinant microorganisms may comprise a cytosolically localized DHAD enzyme. In additional embodiments, the recombinant microorganisms may comprise a mitochondrially localized DHAD enzyme. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 01-19-2012
20120015416EXPRESSION OF HEXOSE KINASE IN RECOMBINANT HOST CELLS - The invention relates to a recombinant host cell having (a) a modification in an endogenous polynucleotide encoding a polypeptide having dual-role hexokinase activity; (b) a heterologous polynucleotide encoding a polypeptide having hexose kinase activity; and optionally (c) a modification in an endogenous polynucleotide encoding a polypeptide having pyruvate decarboxylase activity. Additionally, the invention relates to methods of making and using such recombinant host cells including, for example, methods of increasing glucose consumption, methods of improving redox balance, and/or methods of increasing the production of a product of a pyruvate-utilizing pathway.01-19-2012
20120058532ENGINEERED MICROORGANISMS CAPABLE OF PRODUCING TARGET COMPOUNDS UNDER ANAEROBIC CONDITIONS - The present invention is generally provides recombinant microorganisms comprising engineered metabolic pathways capable of producing C3-C5 alcohols under aerobic and anaerobic conditions. The invention further provides ketol-acid reductoisomerase enzymes which have been mutated or modified to increase their NADH-dependent activity or to switch the cofactor preference from NADPH to NADH and are expressed in the modified microorganisms. In addition, the invention provides isobutyraldehyde dehydrogenase enzymes expressed in modified microorganisms. Also provided are methods of producing beneficial metabolites under aerobic and anaerobic conditions by contacting a suitable substrate with the modified microorganisms of the present invention.03-08-2012
20120208250PROCESS FOR PRODUCING ALCOHOL AND OTHER BIOPRODUCTS FROM BIOMASS EXTRACTS IN A KRAFT PULP MILL - A method for the production of alcohol and other bioproducts from power boiler woody biomass extract containing hemicelluloses, with or without combining extract from wood prior to Kraft cooking. The process is integrated with the host Kraft pulp mill plant process to minimize the heat loss from extracting hemicelluloses and the energy used in the process.08-16-2012
20120107891RECOVERY OF HIGHER ALCOHOLS FROM DILUTE AQUEOUS SOLUTIONS - This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.05-03-2012
20110065157PHOTOBIOREACTOR FOR ALGAE GROWTH - The present invention provides a flow-through photobioreactor containing at least one thermoplastic multi-wall sheet having an upper layer and a lower layer having arranged there between at least two sidewalls, at least one inner wall and two or more end caps. Also provided is a process for the production of a biofuel with the inventive photobioreactor. The photobioreactor and process of the present invention have the following advantages: genetically engineered microbes that give higher yields cannot escape into the environment, water in the system does not evaporate, no weeding (presence of unwanted algae), UV light from the sun is filtered out by the reactor walls, temperature control is possible, CO03-17-2011
20120252084Enhanced Pyruvate to Acetolactate Conversion in Yeast - A high flux in conversion of pyruvate to acetolactate was achieved in yeast through expression of acetolactate synthase in the cytosol in conjunction with reduction in pyruvate decarboxylase activity. Additional manipulations to improve flux to acetolactate are reduced pyruvate dehydrogenase activity and reduced glycerol-3-phosphate dehydrogenase activity. Production of compounds having acetolactate as an upstream intermediate benefit from the increased conversion of pruvate to acetolactate in the described strains.10-04-2012
20110183393METHODS OF INCREASING DIHYDROXY ACID DEHYDRATASE ACTIVITY TO IMPROVE PRODUCTION OF FUELS, CHEMICALS, AND AMINO ACIDS - The present invention is directed to recombinant microorganisms comprising one or more dihydroxyacid dehydratase (DHAD)-requiring biosynthetic pathways and methods of using said recombinant microorganisms to produce beneficial metabolites derived from said DHAD-requiring biosynthetic pathways. In various aspects of the invention, the recombinant microorganisms may be engineered to overexpress one or more polynucleotides encoding one or more Aft proteins or homologs thereof. In some embodiments, the recombinant microorganisms may comprise a cytosolically localized DHAD enzyme. In additional embodiments, the recombinant microorganisms may comprise a mitochondrially localized DHAD enzyme. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 07-28-2011
20120220003METHOD FOR CONTINUOUSLY SEPARATING ORGANIC MATERIALS OF INTEREST FROM FERMENTATION - A method for continuously separating organic materials of interest from fermentation, in particular lactic or alcoholic fermentation, by flash evaporation is described. The method can make it possible to avoid inhibiting the fermentation reaction and to obtain high yields and productivity.08-30-2012
20100291647Microorganisms Having Enhanced Resistance To Acetate And Related Compositions And Methods of Use - The present invention provides isolated or genetically modified strains of microorganisms that display enhanced resistance to acetate as a result of increased expression of a sodium proton antiporter. The present invention also provides methods for producing such microbial strains, as well as related promoter sequences and expression vectors. Further, the present invention provides methods of producing alcohol from biomass materials by using microorganisms with enhanced resistance to acetate.11-18-2010
20100291646Process for the Recovery of a Fermentation Product - The present invention provides a process for the purification and concentration of a partially water-soluble organic product from a source containing the same at concentration C0, which process comprises the steps of: (i) concentrating said product by means of a resin to form a first aqueous solution at concentration of C1; and (ii) fractionating an aqueous solution by temperature adjustment to form a second aqueous solution and a third aqueous solution with concentrations C2 and C3, respectively, wherein C2>C3 and C2>C1>C0.11-18-2010
20120225464Specific Arabinose Transporter of the Plant Arabidopsis Thaliana for the Construction of Pentose-Fermenting Yeasts - The present invention relates to methods for conferring upon a cell the ability to take up L-arabinose, wherein said method comprises transforming the cell with a nucleic acid molecule comprising a nucleic acid sequence that codes for a plant pentose transporter, wherein the transformation enables the cell to take up L-arabinose. The present invention further relates to yeast cells that are transformed with a nucleic acid expression construct that codes for a plant pentose transporter, wherein the expression of the nucleic acid expression construct imparts to the cells the capability to take up L-arabinose. Said cells are preferably utilized for the conversion/metabolization of biomaterial containing pentose(s), in particular arabinose, and particularly for the production of bio-based chemicals and biofuels.09-06-2012
20120190089ENGINEERED MICROOGRANISMS CAPABLE OF PRODUCING TARGET COMPOUNDS UNDER ANAEROBIC CONDITIONS - The present invention is generally provides recombinant microorganisms comprising engineered metabolic pathways capable of producing C3-C5 alcohols under aerobic and anaerobic conditions. The invention further provides ketol-acid reductoisomerase enzymes which have been mutated or modified to increase their NADH-dependent activity or to switch the cofactor preference from NADPH to NADH and are expressed in the modified microorganisms. In addition, the invention provides isobutyraldehyde dehydrogenase enzymes expressed in modified microorganisms. Also provided are methods of producing beneficial metabolites under aerobic and anaerobic conditions by contacting a suitable substrate with the modified microorganisms of the present invention.07-26-2012
20120231515BUTANOL DEHYDROGENASE ENZYME FROM THE BACTERIUM ACHROMOBACTER XYLOSOXIDANS - From a bacterial strain isolated from an environmental sample, after enrichment in medium containing 1-butanol as the carbon source, a new enzyme with butanol dehydrogenase activity was identified. The enzyme can convert butyraldehyde to 1-butanol, isobutyraldehyde to isobutanol, as well as 2-butanone to 2-butanol and thus is useful for biosynthesis of butanol in recombinant microbial hosts producing these substrates. The encoding gene, named sadB, was isolated from the strain identified as an isolate of 09-13-2012
20100167363YEAST WITH INCREASED BUTANOL TOLERANCE INVOLVING FILAMENTOUS GROWTH RESPONSE - Increasing tolerance to butanol in yeast has been accomplished by increasing activity of the filamentous growth response. Yeast with increased expression of MSS1107-01-2010
20120322118INDIRECT PRODUCTION OF BUTANOL AND HEXANOL - A process for the conversion of carbohydrates from any of a number of sources into butanol and hexanol for fuel or chemical use is disclosed. The process includes conducting a homoacetogenic fermentation to produce an acetic acid intermediate which is chemically converted to ethanol. The ethanol and a remaining portion of the acetic acid intermediate are used as a substrate in an acidogenic fermentation to produce butyric and caproic acid intermediates which are then chemically converted to butanol and hexanol.12-20-2012
20110236942Reduced by-product accumulation for improved production of isobutanol - The present invention relates to recombinant microorganisms comprising biosynthetic pathways and methods of using said recombinant microorganisms to produce various beneficial metabolites. In various aspects of the invention, the recombinant microorganisms may further comprise one or more modifications resulting in the reduction or elimination of 3 keto-acid (e.g., acetolactate and 2-aceto-2-hydroxybutyrate) and/or aldehyde-derived by-products. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 09-29-2011
20110236941RECOMBINANT MICROORGANISM AND METHODS OF PRODUCTION THEREOF - A novel genetically modified microorganisms capable of using CO to produce 1-butanol and/or a precursor thereof, novel methyltransferases and nucleic acids encoding same, methods for producing genetically modified microorganisms using said novel methyltransferases, and methods of producing 1-butanol and/or a precursor thereof by microbial fermentation.09-29-2011
20120288910METHODS OF INCREASING DIHYDROXY ACID DEHYDRATASE ACTIVITY TO IMPROVE PRODUCTION OF FUELS, CHEMICALS, AND AMINO ACIDS - The present invention is directed to recombinant microorganisms comprising one or more dihydroxyacid dehydratase (DHAD)-requiring biosynthetic pathways and methods of using said recombinant microorganisms to produce beneficial metabolites derived from said DHAD-requiring biosynthetic pathways. In various aspects of the invention, the recombinant microorganisms may be engineered to overexpress one or more polynucleotides encoding one or more Aft proteins or homologs thereof. In some embodiments, the recombinant microorganisms may comprise a cytosolically localized DHAD enzyme. In additional embodiments, the recombinant microorganisms may comprise a mitochondrially localized DHAD enzyme. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 11-15-2012
20130017588RECOMBINANT MICROORGANISMS HAVING INCREASED ABILITY TO PRODUCE BUTANOL AND METHOD OF PRODUCING BUTANOL USING THE SAMEAANM Lee; Sang YupAACI DaejeonAACO KRAAGP Lee; Sang Yup Daejeon KRAANM Jang; Yu-SinAACI DaejeonAACO KRAAGP Jang; Yu-Sin Daejeon KRAANM Lee; Jin YoungAACI IncheonAACO KRAAGP Lee; Jin Young Incheon KRAANM Lee; Joung MinAACI Gangwon-doAACO KRAAGP Lee; Joung Min Gangwon-do KRAANM Park; Jin HwanAACI DaejeonAACO KRAAGP Park; Jin Hwan Daejeon KR - The present invention relates to recombinant microorganisms having an increased ability to produce butanol, and a method of producing butanol using the same. More specifically, the invention relates to recombinant microorganisms whose ability to produce butanol was increased by manipulation of their metabolic networks, and a method of producing butanol using the same. The recombinant microorganisms having an increased ability to produce butanol comprise a deletion of a gene, which encodes an enzyme that converts acetyl CoA to acetate, in host microorganisms having genes that encode enzymes involved in acetyl CoA and butyryl CoA biosynthetic pathway. The recombinant microorganisms obtained by manipulating the metabolic flux of microorganisms are able to selectively produce butanol with high efficiency, and thus are useful as microorganisms for producing industrial solvents and transportation fuels.01-17-2013
20110159559METHOD FOR THE COMBINED PRODUCTION OF BUTANOL AND HYDROGEN - The invention relates to a process for the combined production of butanol and hydrogen from biomass, comprising the steps of fermenting biomass to obtain butanol in a first reaction mixture; removing the butanol and hydrogen from the first reaction mixture to obtain effluent; and using the effluent as a substrate in a second reaction mixture in a process using low substrate concentrations, in particular a hydrogen production process. Preferably, the process using low substrate concentrations is a hydrogen production process and at least part of the end products of the hydrogen production process is removed from the second reaction mixture for obtaining an effluent that comprises organic acid, which effluent is returned to the first reaction mixture.06-30-2011
20110159558METHOD FOR PRODUCING BUTANOL USING EXTRACTIVE FERMENTATION WITH ELECTROLYTE ADDITION - A method for producing butanol through microbial fermentation, in which the butanol product is removed during the fermentation by extraction into a water-immiscible organic extractant in the presence of at least one electrolyte at a concentration at least sufficient to increase the butanol partition coefficient relative to that in the presence of the salt concentration of the basal fermentation medium, is provided. The electrolyte may comprise a salt which dissociates in the fermentation medium, or in the aqueous phase of a biphasic fermentation medium, to form free ions. Also provided is a method and composition for recovering butanol from a fermentation medium.06-30-2011
20130023020COOLING AND PROCESSING MATERIALS - Systems and methods for cooling and processing materials are disclosed.01-24-2013
20080248540METHODS OF PRODUCING BUTANOL - A method of producing butanol from carbohydrates is provided. A feedstock comprising a carbohydrate source is fermented in the presence of bacteria to produce butyric acid and hydrogen. The butyric acid is then hydrogenated in the presence of a catalyst to produce butanol.10-09-2008
20110269199ALCOHOL DEHYDROGENASES (ADH) USEFUL FOR FERMENTIVE PRODUCTION OF LOWER ALKYL ALCOHOLS - The invention relates to suitable candidate ADH enzymes for production of lower alkyl alcohols including isobutanol. The invention also relates to recombinant host cells that comprise such ADH enzymes and methods for producing lower alkyl alcohols in the same.11-03-2011
20130171706Fermentive Production of Four Carbon Alcohols - Methods for the fermentative production of four carbon alcohols is provided. Specifically, butanol, preferably isobutanol is produced by the fermentative growth of a recombinant bacterium expressing an isobutanol biosynthetic pathway.07-04-2013
20130177957SULFIDE GENERATION PROCESS AND SYSTEM FOR SYNGAS FERMENTATION - A process that generates sulfide in production of liquid products from syngas and a system for syngas fermentation including a sulfide generation process to convert feed gas to liquid product, the process including: partially oxidizing high-temperature gas, input gas, and molten sulfur to generate sulfide gas, the high-temperature gas containing oxygen, the input gas containing carbonaceous fuel and the sulfide gas containing hydrogen sulfide, CO, CO07-11-2013
20130122561RECOVERY OF HIGHER ALCOHOLS FROM DILUTE AQUEOUS SOLUTIONS - This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allow recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.05-16-2013
20130149758Conversion System For Biomass - The efficient production of ethanol from low-cost biomass (e.g., corn, sugar beets, sugar cane, switchgrass and/or paper) has become increasingly important in making ethanol competitive with gasoline and decreasing the United States' dependence on foreign oil. For example, to reduce the cost of transporting biomass to ethanol production facilities, mobile systems for producing ethanol from biomass are provided. Also provided are small-scale ethanol production facilities. For example, instead of transporting biomass to the production facility, the facility is transported to the biomass or is located nearby the source of the biomass. The ethanol production facilities or components thereof may be transported via land, water, or air. Production of other products, such as hydrocarbons, natural gas, hydrogen gas, plastics, polymers, and proteins, can also be made by the methods and facilities. Any product described herein can be made in finished form or un-finished form and moved, e.g., to a fixed facility, e.g., fixed production facility.06-13-2013
20130149757Method for Producing Butanol and Isopropanol06-13-2013
20110275129Reduced by-product accumulation for improved production of isobutanol - The present invention relates to recombinant microorganisms comprising biosynthetic pathways and methods of using said recombinant microorganisms to produce various beneficial metabolites. In various aspects of the invention, the recombinant microorganisms may further comprise one or more modifications resulting in the reduction or elimination of 3 keto-acid (e.g., acetolactate and 2-aceto-2-hydroxybutyrate) and/or aldehyde-derived by-products. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 11-10-2011
20130183730RECOVERY OF HIGHER ALCOHOLS FROM DILUTE AQUEOUS SOLUTIONS - This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.07-18-2013
20130183731FERMENTIVE PRODUCTION OF FOUR CARBON ALCOHOLS - Methods for the fermentative production of four carbon alcohols is provided. Specifically, butanol, preferably isobutanol is produced by the fermentative growth of a recombinant bacterium expressing an isobutanol biosynthetic pathway.07-18-2013
20110312053SUPPLEMENTATION OF FATTY ACIDS FOR IMPROVING ALCOHOL PRODUCTIVITY - Fatty acids derived from biomass at a step in a fermentation process can be added to a fermentation medium comprising a recombinant microorganism that produces a product alcohol. At least one of growth rate and fermentable carbon consumption of the microorganism is greater in the presence of the fatty acids than the growth rate and the fermentable carbon consumption of the microorganism in the absence of the fatty acids. The addition of the fatty acids can increase glucose consumption, and can improve microorganism biomass production (cell growth/density) and growth rate, thereby reducing production time and increasing productivity of the fermentation process.12-22-2011
20110312052PROCESS FOR CELL-FREE PRODUCTION OF CHEMICALS - An enzymatic process is described for the production of chemicals from carbon sources. In particular, according to one aspect, a process for the production of a target organic compound from a carbon source by a cell-free enzyme system is disclosed.12-22-2011
20090280546YEAST STRAIN FOR PRODUCTION OF FOUR CARBON ALCOHOLS - Yeast cells with a reduced general control response to amino acid starvation were found to have increased tolerance to butanol in the growth medium. The reduced response was engineered by genetic modification of a gene involved in the response, a GCN gene, to eliminate activity of the encoded protein. Yeast strains with an engineered butanol biosynthetic pathway and a genetic modification in a gene involved in the general control response to amino acid starvation, which have increased butanol tolerance, are useful for production of butanol.11-12-2009
20120028324ENGINEERED MICROORGANISMS CAPABLE OF PRODUCING TARGET COMPOUNDS UNDER ANAEROBIC CONDITIONS - The present invention is generlly provides recombinant microorganisms comprising engineered metabolic pathways capable of producing C3-C5 alcohols under aerobic and anaerobic conditions. The invention further provides ketol-acid reductoisomerase enzymes which have been mutated or modified to increase their NADH-dependent activity or to switch the cofactor preference from NADPH to NADH and are expressed in the modified microorganisms. In addition, the invention provides isobutyraldehyde dehydrogenase enzymes expressed in modified microorganisms. Also provided are methods of producing beneficial metabolites under aerobic and anaerobic conditions by contacting a suitable substrate with the modified microorganisms of the present invention.02-02-2012
20120028323YEAST ORGANISM PRODUCING ISOBUTANOL AT A HIGH YIELD - The present invention provides recombinant microorganisms comprising an isobutanol producing metabolic pathway and methods of using said recombinant microorganisms to produce isobutanol. In various aspects of the invention, the recombinant microorganisms may comprise a modification resulting in the reduction of pyruvate decarboxylase and/or glycerol-3-phosphate dehydrogenase activity. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 02-02-2012
20120028322METHODS OF INCREASING DIHYDROXY ACID DEHYDRATASE ACTIVITY TO IMPROVE PRODUCTION OF FUELS, CHEMICALS, AND AMINO ACIDS - The present invention is directed to recombinant microorganisms comprising one or more dihydroxyacid dehydratase (DHAD)-requiring biosynthetic pathways and methods of using said recombinant microorganisms to produce beneficial metabolites derived from said DHAD-requiring biosynthetic pathways. In various aspects of the invention, the recombinant microorganisms may be engineered to overexpress one or more polynucleotides encoding one or more Aft proteins or homologs thereof. In some embodiments, the recombinant microorganisms may comprise a cytosolically localized DHAD enzyme. In additional embodiments, the recombinant microorganisms may comprise a mitochondrially localized DHAD enzyme. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the 02-02-2012
20130196398METHODS OF HYDROLYZING PRETREATED DENSIFIED BIOMASS PARTICULATES AND SYSTEMS RELATED THERETO - A method is provided in which pretreated and densified cellulosic biomass particulates can hydrolyzed at a high solids loading rate as compared with the solids loading rate of loose hydrolysable cellulosic biomass fibers. The resulting high concentration sugar-containing stream can be easily converted to biofuels or an entire suite of other useful bioproducts.08-01-2013
20120088281Thiolase with Improved Activity and Method of Producing Biobutanol Using the Same - The present invention relates to a modified thiolase protein with an improved activity, a polynucleotide encoding the modified protein, an expression vector including the polynucleotide, and a transformant, to a composition for producing a biobutanol including the thiolase with an improved activity or a cell expressing the thiolase, and to a method of producing the biobutanol.04-12-2012

Patent applications in class Butanol