Parada Valdecantos
Pilar Parada Valdecantos, Santiago CL
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20140363879 | SYSTEM AND METHOD FOR SULFUR BIOADAPTATION IN A STABLE DISPERSION FORM FOR INDUSTRIAL BIOREACTOR FEEDING - A system for sulfur (S) bioadaptation in a stable dispersion form for feeding industrial bioreactors, which are composed of a tank with a liquid medium made up of a supernatant dilution or part of a sulfur oxidizing bacterial culture, a recirculating pump fed from the tank, and an eductor which is connected at its input to the recirculation pump, and connected at its output back to the tank, closing the recirculation circuit. There is a supply of S in fine powder form present in the eductor's feeding path. Where the supernatant or part of a sulfur oxidizing bacterial culture is diluted between 100 and 10 times in sulfur containing culture medium. The second aspect the invention discloses a method for sulfur bioadaptation in a stable dispersion form for feeding industrial bioreactors, which includes initiating recirculation through a recirculation pump, in a tank which contains a liquid medium made up of a supernatant dilution or part of a sulfur oxidizing bacterial culture; connecting a supply of fine sulfur powder to an eductor, which is connected to the recirculation pump at its input, and its output connected back into the reservoir. The incorporated sulfur is pulverized by the suction produced within the eductor. | 12-11-2014 |
Pilar Parada Valdecantos, Nunoa, Santiago CL
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20090054249 | DNA FRAGMENTS ARRAY FROM BIOMINING MICROORGANISMS AND METHOD FOR DETECTION OF THEM - The present invention discloses an array of DNA fragments from biomining microorganisms and a method to identify readily and simultaneously said microorganisms in a sample. This method is a useful tool in biomining, in every circumstance where a global understanding of the present microbiological diversity is required, or simply to assess the presence of some microorganism with biomining relevance, either on the mineral, or in a bioleaching heap, in the biomining laboratory or in any other circumstance involving biomining microorganisms. | 02-26-2009 |
Pilar A. Parada Valdecantos, Colina CL
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20100180729 | SULFUR-OXIDIZING BACTERIA AND THEIR USE IN BIOLEACHING PROCESSES FOR SULFURED COPPER MINERALS - The present invention is related to an isolated chemolithotrophic bacterium belonging to species | 07-22-2010 |
Pilar A. Parada Valdecantos, Nunoa CL
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20090035864 | PLASMIDS FOR TRANSFORMING BACTERIA OF THE ACIDITHIOBACILLUS SPP. GENUS, AND TRANSFORMATION METHOD - The present invention discloses functional plasmids in bacteria of the | 02-05-2009 |
20090105085 | ARRAY OF NUCLEOTIDIC SEQUENCES FOR THE DETECTION AND IDENTIFICATION OF GENES THAT CODIFY PROTEINS WITH ACTIVITIES RELEVANT IN BIOTECHNOLOGY PRESENT IN A MICROBIOLOGICAL SAMPLE, AND METHOD FOR USING THIS ARRAY - The present invention makes known an array of nucleotididc sequences for rapidly and simultaneously identifying the presence of certain genes that codify proteins with activities relevant in biotechnology, present in a microbiological sample, and the method for using this array in the identification of the said genes. Specifically, genes that codify for proteins relevant in Biofilm formation, in CO | 04-23-2009 |
Pilar Angelica Parada Valdecantos, Colina CL
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20150275324 | CAPSULES OF VIABLE BIOMINING MICROORGANISMS, WITH ALGINATE AND IRON IONS CALLED BIOSIGMA BIOLEACHING SEEDS (BBS) AND THEIR USE FOR INOCULATION OF THESE MICROORGANISMS IN BIOLEACHING PROCESSES - The invention refers to viable biomining microorganisms encapsulated in alginate capsules, called BioSigma Bioleaching Seeds or BBS, wherein the alginate capsules have iron (II) and/or iron (III) ions as the cross-linking cations, and the usage of these capsules in the inoculation of these microorganisms in bioleaching processes | 10-01-2015 |
Pilar Angelica Parada Valdecantos, Nunoa CL
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20080207462 | DNA fragments array from biomining microorganisms and method for detection of them - Microorganisms are used in large-scale heap or tank aeration processes for the commercial extraction of a variety of metals from their ores or concentrates. These include copper, cobalt, gold and, in the past, uranium. The metal solubilization processes are considered to be largely chemical with the microorganisms providing the chemicals and the space (exopolysaccharide layer) where the mineral dissolution reactions occur. Temperatures at which these processes are carried out can vary from ambient to 80° C. and the types of organisms present depends to a large extent on the process temperature used. Irrespective of the operation temperature, biomining microbes have several characteristics in common. One shared characteristic is their ability to produce the ferric iron and sulfuric acid required to degrade the mineral and facilitate metal recovery. Other characteristics are their ability to grow autotrophically, their acid-tolerance and their inherent metal resistance or ability to acquire metal resistance. Although the microorganisms that drive the process have the above properties in common, biomining microbes usually occur in consortia in which cross-feeding may occur such that a combination of microbes including some with heterotrophic tendencies may contribute to the efficiency of the process. The remarkable adaptability of these organisms is assisted by several of the processes being continuous-flow systems that enable the continual selection of microorganisms that are more efficient at mineral degradation. Adaptability is also assisted by the processes being open and non-sterile thereby permitting new organisms to enter. This openness allows for the possibility of new genes that improve cell fitness to be selected from the horizontal gene pool. Characteristics that biomining microorganisms have in common and examples of their remarkable adaptability are described. | 08-28-2008 |
20090004727 | METHOD FOR THE SEPARATION OF MICROORGANISMS ADHERED TO A SOLID SAMPLE BY MEANS OF A PHOSPHATE-BASED DAMPER AND SONICATION OF THE SAMPLE - The present invention provides a method for the separation of microorganisms of a microbiological community present in a solid sample. And once the microorganisms are isolated, they are used in microbiological techniques, or their nucleic acids, both DNA and RNA, are extracted from them for carrying out molecular biology techniques. In accordance with the present invention, the method for the separation of microorganisms adhered to a solid sample comprises the following stages: Providing a solid sample with microorganisms adhered to it; adding to the solid sample a high molarity phosphate-based buffer containing a phosphate solution of a concentration greater than 0.5 M, ethanol, and a non-ionic surfactant; sonicating, and recovering the supernatant, comprising microorganisms separated from the solid sample. | 01-01-2009 |
Pilar Angélica Parada Valdecantos, Santiago CL
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20120208257 | ADDITIVE FOR BIOLEACHING THAT IS SUBSTANTIALLY MADE UP OF THE LICANANTASE LIPOPROTEIN, AND BIOLEACHING PROCESS TO WHICH THIS ADDITIVE IS ADDED TO INCREASE THE RECOVERY OF COPPER - The invention discloses an additive for bioleaching that makes it possible to increase the recovery of copper from sulfide ores. In which this additive is substantially made up of the Licanantase lipoprotein and a solution of sulfuric acid with a pH of 0.8 to 3. The Licanantase lipoprotein that has an amino acid sequence with at least 50% homology regarding the sequence defined in SEQ ID No. 1 or is the product of translation of a nucleotide sequence with at least 50% homology regarding the sequence defined in SEQ ID No. 2. It also protects the improved bioleaching process that includes adding the additive during the ore bioleaching process as defined in the present invention; and continuing with the habitual process, obtaining copper recoveries increased 5 to 20%. | 08-16-2012 |
Pilar Angélica Parada Valdecantos, Colina CL
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20110212527 | METHOD TO INCREASE THE PRODUCTION OF EXTRACELLULAR POLYMERIC SUBSTANCES (EPS) IN A ACIDITHIOBACILLUS FERROOXIDANS CULTURE BY THE INHIBITION OF ENZYMES OF TRICARBOXILIC ACID CYCLE - A method of increasing the production of extracellular polymeric substances (EPS) in an | 09-01-2011 |
Pilar Angèlica Parada Valdecantos, Nunoa CL
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20110136125 | METHOD FOR THE IDENTIFICATION AND QUANTIFICATION OF MICROORGANISMS USEFUL IN BIOMINING PROCESSES - The present invention discloses a method to identify and quantify environmental microorganisms useful in biomining processes. These microorganisms are basically 10, belonging to Bacteria: | 06-09-2011 |