Patent application number | Description | Published |
20110250637 | METHOD FOR PRODUCING SUGAR LIQUID - A sugar liquid containing only very small amounts of fermentation-inhibiting substances is produced by a method for producing a sugar liquid using a cellulose-containing biomass as a raw material, the method including: (1) a step of hydrolyzing a cellulose-containing biomass to produce an aqueous sugar solution; and (2) a step of filtering the obtained aqueous sugar solution through a nanofiltration membrane and/or reverse osmosis membrane to collect a purified sugar liquid from the feed side, while removing fermentation-inhibiting substances from the permeate side. | 10-13-2011 |
20130004994 | METHOD FOR PRODUCING PURE SUGAR SOLUTION, AND METHOD FOR PRODUCING CHEMICAL PRODUCT - The invention provides a method that allows fermentation impeding substances that occur during production of a sugar from cellulose-containing biomass to be removed in an aqueous sugar solution production step, and also provides a method for long-term stable production of an aqueous refined sugar solution that is nearly free from fermentation impeding substances. The aqueous refined sugar solution production method using cellulose-containing biomass as feed material comprises:
| 01-03-2013 |
20130189761 | METHOD FOR PRODUCING GLUCOSIDASE, ENZYME COMPOSITION, AND METHOD FOR HYDROLYZING BIOMASS - A method for producing a mutant glucosidase includes introducing DNA encoding a secretion signal sequence and DNA encoding Asn-X-Ser or Asn-X-Thr into DNA encoding a glucosidase derived from a thermophile, and introducing the resulting DNA into a eukaryotic microorganism and expressing it as a secretory protein. An enzyme composition contains the mutant glucosidase. | 07-25-2013 |
20130344543 | METHOD FOR PRODUCING SUGAR SOLUTION - A method produces a sugar liquid by adding a filamentous fungus-derived cellulase to a pretreated product of cellulose to obtain a hydrolysate; adding waste molasses to said hydrolysate to obtain a mixed sugar liquid; and subjecting said mixed sugar liquid to solid-liquid separation and filtering the obtained solution component through an ultrafiltration membrane, to recover the filamentous fungus-derived cellulase as a non-permeate and to obtain a sugar liquid as a permeate. | 12-26-2013 |
20140017729 | METHOD FOR MANUFACTURING SUGAR SOLUTION - A method of producing a sugar liquid includes concentrating an aqueous cellulose-derived sugar solution with a nanofiltration membrane and/or reverse osmosis membrane, wherein the concentration is carried out after adding a water-soluble anionic polymer to the aqueous cellulose-derived sugar solution to remove a fermentation inhibitor(s) into a permeate side of the nanofiltration membrane and/or reverse osmosis membrane. | 01-16-2014 |
20140017736 | METHOD FOR PRODUCING SUGAR SOLUTION - A method of producing a sugar liquid includes hydrolyzing with a filamentous fungus-derived cellulase a product obtained by adding a water-soluble inorganic salt(s) to a pretreated product of cellulose to a final concentration of 5 to 35 g/L; and subjecting the hydrolysate to solid-liquid separation and filtering the obtained solution component through an ultrafiltration membrane to recover the filamentous fungus-derived cellulase as a non-permeate and to obtain a sugar liquid as a permeate. | 01-16-2014 |
20140127759 | MUTANT B-GLUCOSIDASE, ENZYME COMPOSITION FOR DECOMPOSING BIOMASS, AND METHOD OF PRODUCING SUGAR SOLUTION - A β-glucosidase exhibits high activity in the presence of biomass and has high thermal stability compared to conventional enzymes. The β-glucosidase includes substitutions and/or deletions of amino acids, at least three amino acids selected from the group consisting of Glu39, Asp169, Arg170, Arg220, Tyr227, and Glu330, of the parent β-glucosidase with other amino acids and exhibits a decomposition activity. | 05-08-2014 |
20140158642 | METHOD OF MANUFACTURING FILTER AID - A method of producing a filter aid includes: (A) obtaining a pretreated biomass by pulverization treatment and/or thermochemical treatment of a cellulose-containing biomass; (B) treating the pretreated biomass obtained in (A) with cellulase to obtain a cellulase-treated product; and (C) obtaining a solid content of the cellulase-treated product of (B). | 06-12-2014 |
20140178937 | METHOD OF MANUFACTURING SUGAR SOLUTION - A method of producing a sugar liquid with a cellulose-containing biomass as a raw material includes (1) hydrolyzing a cellulose-containing biomass to produce an aqueous sugar solution, and (2) filtering the aqueous sugar solution obtain in (1) through an ultrafiltration membrane having a molecular weight cutoff of 600 to 2,000 to remove a fermentation inhibitor(s) into the permeate side and collect a sugar liquid from the feed side. | 06-26-2014 |
20140178947 | MUTANT ENDOGLUCANASE - Endoglucanase characterized by a decreased degree of activity inhibition by a lignin-derived aromatic compound, and prepared by substituting tryptophan at position 273 in the amino acid sequence of wild-type thermophilic bacterium-derived endoglucanase with an amino acid other than aromatic amino acids. | 06-26-2014 |
20140287461 | METHOD FOR PRODUCING SUGAR LIQUID - A method of producing a sugar liquid using a cellulose-containing biomass as a raw material includes (a) hydrolyzing a cellulose-containing biomass to produce an aqueous sugar solution and (b) filtering the obtained aqueous sugar solution through a reverse osmosis membrane to collect a purified sugar liquid from a feed side, while removing fermentation-inhibiting substances from a permeate side. | 09-25-2014 |
20140295525 | METHOD FOR PRODUCING CELLULASE AND APPARATUS FOR SAID METHOD - A method of producing cellulase includes steps (1) to (3): (1) subjecting an aqueous solution of cellulase derived from filamentaous fungi to filtration through an ultrafiltration membrane with a molecular weight cut off of 100,000 to 200,000 to obtain a filtrate and concurrently obtain a concentrated enzyme liquid as a retentate; (2) further subjecting the filtrate obtained in step (1) to filtration through a second ultrafiltration membrane with a molecular weight cut off of 5,000 to 50,000 to obtain a second concentrated enzyme liquid as a retentate; and (3) mixing the concentrated enzyme liquid obtained in steps (1) and (2) to obtain cellulase derived from filamentaous fungi. | 10-02-2014 |
20140342444 | PRODUCTION APPARATUS OF SUGAR SOLUTION AND PRODUCTION SYSTEM OF SUGAR SOLUTION - A sugar solution production apparatus includes a saccharification tank that obtains a saccharified solution containing a solid substance from a cellulose-containing biomass, a solid-liquid separator that separates the solid substance from the saccharified solution to obtain a sugar solution, an enzyme recovery solution tank that stores an enzyme recovery solution, a sugar solution extraction line that extracts the sugar solution from the solid-liquid separator, a warm water supply unit that supplies warm water to the solid-liquid separator, an enzyme recovery solution supply line that supplies the enzyme recovery solution from the enzyme recovery solution tank to the solid-liquid separator, an enzyme recovery solution recovery line that feeds the enzyme recovery solution containing the saccharifying enzyme recovered from the solid substance to the enzyme recovery solution tank, and an enzyme recovery solution return line that returns the enzyme recovery solution to the saccharification tank. | 11-20-2014 |
20150083118 | METHOD OF PRODUCING SUGAR SOLUTION - A method of producing a sugar liquid includes filtering a sugar liquid through a nanofiltration membrane and collecting a sugar liquid from the feed side, wherein a sugar liquid containing an organic liquid compound having a relative dielectric constant of not less than 17 at 25° C. is filtered through the nanofiltration membrane. | 03-26-2015 |