Having Keto Group (e.g., Alpha-ketoglutaric Acid, Etc.) Patents (Class 435/143)
  • Publication number: 20150125906
    Abstract: The present invention relates to methods of degrading or converting biomass material enriched with hemicellulosic material into fermentable sugars.
    Type: Application
    Filed: January 14, 2015
    Publication date: May 7, 2015
    Inventors: Prashant Iyer, Harry Showmaker, Hui Xu, Kishore Rane
  • Publication number: 20150104794
    Abstract: The present invention provides four keto acid transporter encoding sequences selected from 6611 protein coding sequences of Yarrowia lipolytica CLIB122 database. Also provided are recombinant Yarrowia lipolytica strains overexpressing the keto acid transporters, which have increased extracellular secretion of ?-ketoglutarate. The present invention can be used to increase extracellular levels of ?-ketoglutarate during the fermentation process and lower downstream purification cost for ?-ketoglutarate production.
    Type: Application
    Filed: December 29, 2013
    Publication date: April 16, 2015
    Applicant: JIANGNAN UNIVERSITY
    Inventors: Jian Chen, Jingwen Zhou, Hongwei Guo, Guocheng Du
  • Publication number: 20150082493
    Abstract: The present invention relates to GH61 polypeptide variants. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the variants.
    Type: Application
    Filed: April 26, 2013
    Publication date: March 19, 2015
    Inventors: Janine Lin, Doreen Bohan, Michelle Maranta, Leslie Beresford, Michael Lamsa, Matt Sweeney, Mark Wogulis, Elizabeth Znameroski, Frank Winther Rasmussen
  • Publication number: 20150050694
    Abstract: A method of sterilizing a separation membrane module using water vapor includes: a liquid supplying step of supplying a liquid having a boiling point of 80° C. or higher at atmospheric pressure to a secondary side of the separation membrane module such that a filling ratio of the liquid in a space surrounded by a filtration portion of a separation membrane is 70% or more, the filtration portion being used for filtration; a liquid sealing step of isolating the secondary side of the separation membrane module such that the filling ratio of the liquid supplied to the secondary side in the liquid supplying step is 70% or more; and a sterilization step of sterilizing the separation membrane module by supplying water vapor to a primary side of the separation membrane module while the secondary side of the separation membrane module is isolated.
    Type: Application
    Filed: March 1, 2013
    Publication date: February 19, 2015
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Norihiro Takeuchi, Atsushi Kobayashi
  • Publication number: 20150040271
    Abstract: The present invention relates to isolated polypeptides having cellulolytic enhancing activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
    Type: Application
    Filed: October 20, 2014
    Publication date: February 5, 2015
    Inventors: Suchindra Maiyuran, Randall Kramer, Paul Harris
  • Publication number: 20150031079
    Abstract: The present invention relates to isolated polypeptides having xylanase activity and polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
    Type: Application
    Filed: October 13, 2014
    Publication date: January 29, 2015
    Inventor: Nikolaj Spodsberg
  • Publication number: 20150031082
    Abstract: The present invention relates to isolated polypeptides having beta-glucosidase activity, beta-xylosidase activity, or beta-glucosidase and beta-xylosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
    Type: Application
    Filed: October 13, 2014
    Publication date: January 29, 2015
    Inventor: Marc Dominique Morant
  • Publication number: 20150031080
    Abstract: The present invention relates to variants of a parent cellobiohydrolase II. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the variants.
    Type: Application
    Filed: October 13, 2014
    Publication date: January 29, 2015
    Inventor: Mark Wogulis
  • Patent number: 8940510
    Abstract: The invention provides spray-dried preparations of microbes and methods of using those microbes.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: January 27, 2015
    Assignee: University of Iowa Research Foundation
    Inventors: Venkiteswaran Subramanian, James H. Glenn, IV, Shuvendu Das
  • Publication number: 20150010958
    Abstract: The present invention provides methods for degrading or converting a cellulosic material using an enzyme composition in the presence of a reducing agent. The present invention also provides methods for producing a fermentation product and methods of fermenting a cellulosic material using an enzyme composition in the presence of a reducing agent.
    Type: Application
    Filed: January 28, 2013
    Publication date: January 8, 2015
    Applicants: Novoztmes A/S, Novozymes Inc.
    Inventors: Hongzhi Huang, Yun Wang, Wei Li, Feng Xu, Ani Tejirian
  • Publication number: 20150010973
    Abstract: The invention relates to fungal strains having at least one genetic modification which leads to a reduction of the activity of at least one fungal carboxylic acid transporter and to a method for producing or using said fungal strains.
    Type: Application
    Filed: December 12, 2012
    Publication date: January 8, 2015
    Applicant: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG
    Inventors: Andreas Aurich, Martina Holz, Anne Kretzschmar, Christina Otto, Gerold Barth, Isabel Waengler, Roland Arno Müller
  • Publication number: 20140308705
    Abstract: The present invention relates to isolated polypeptides having cellulolytic enhancing activity and polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
    Type: Application
    Filed: September 20, 2012
    Publication date: October 16, 2014
    Inventors: Marc Morant, Tarana Shaghasi
  • Publication number: 20140308701
    Abstract: The present invention relates to recombinant filamentous fungal host cells producing cellulolytic enzyme compositions and methods of producing and using the compositions.
    Type: Application
    Filed: August 23, 2012
    Publication date: October 16, 2014
    Inventors: Jeffrey Shasky, Amanda Fischer, Suchindra Maiyuran
  • Publication number: 20140287465
    Abstract: The present invention relates to polypeptides having xylanase activity, catalytic domains, and carbohydrate binding domains, and polynucleotides encoding the polypeptides, catalytic domains, and carbohydrate binding domains. The present invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides, catalytic domains, and carbohydrate binding domains.
    Type: Application
    Filed: December 18, 2012
    Publication date: September 25, 2014
    Inventors: Nikolaj Spodsberg, Tarana Shaghasi
  • Publication number: 20140289905
    Abstract: Provided are isolated polypeptides having xylanase activity, catalytic domains and cellulose binding domains, and polynucleotides encoding the polypeptides, catalytic domains or cellulose binding domains. Also provided are nucleic acid constructs, vectors and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides, catalytic domains or cellulose binding domains.
    Type: Application
    Filed: November 9, 2012
    Publication date: September 25, 2014
    Applicant: Novozymes Inc.
    Inventors: Yu Zhang, Junxin Duan, Ye Liu, Lan Tang
  • Publication number: 20140234906
    Abstract: The present invention relates to alpha-amylase variants. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the variants.
    Type: Application
    Filed: October 17, 2012
    Publication date: August 21, 2014
    Inventors: Carsten Andersen, Signe Eskildsen Larsen, Esben Peter Friis, Peter Kamp Hansen, Henrik Friis Madsen, Anders Viksoe Nielsen, Pernille Ollendorf Micheelsen
  • Publication number: 20140220635
    Abstract: The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the variants.
    Type: Application
    Filed: October 17, 2012
    Publication date: August 7, 2014
    Applicant: Novozymes A/S
    Inventors: Carsten Andersen, Signe Larsen, Esben Peter Friis, Pernille Ollendorff Micheelsen, Anders Viksoe Nielsen, Randall Deinhammer, Xinyu Shen
  • Publication number: 20140206901
    Abstract: The invention relates to methods for the production of chemical compounds, particularly but not exclusively ethanol, by microbial fermentation. Also described are genetically modified micro-organisms capable of using carbon monoxide to produce one or more products, particularly but not exclusively ethanol as a main product, and producing a reduced amount or substantially no 2,3-butanediol and/or a precursor thereof.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 24, 2014
    Inventors: Michael Koepke, Shilpa Nagaraju, Wendy Yiting Chen
  • Publication number: 20140206046
    Abstract: Described herein are improved methods of degrading or converting cellulosic material into fermentable sugars using dithionite. Also described are improved methods of fermentation in the presence of dithionite.
    Type: Application
    Filed: September 7, 2012
    Publication date: July 24, 2014
    Inventors: Hui Xu, Ye Chen, Xin Li, Mark Stevens, Zhengfang Kang
  • Publication number: 20130295621
    Abstract: A target substance can be produced by culturing a bacterium having an ability to produce 2-ketoglutaric acid or a derivative thereof, and an ability to produce xylonic acid from xylose, which is imparted with xylonate dehydratase activity, 2-keto-3-deoxyxylonate dehydratase activity and 2-ketoglutaric semialdehyde dehydrogenase activity, or in which these activities are enhanced, in a medium containing xylose as a carbon source to produce and accumulate the target substance in the medium, and collecting the target substance from the medium.
    Type: Application
    Filed: June 11, 2013
    Publication date: November 7, 2013
    Inventors: Yousuke Nishio, Youko Yamamoto, Kazuteru Yamada, Kosuke Yokota
  • Patent number: 8563278
    Abstract: A process for producing efficiently glutamic acid derivatives (including salts thereof) such as monatin is described. This process entails converting a substituted ?-keto acid of formula (1) into a glutamic acid derivative of formula (2) in the presence of an enzyme catalyzing conversion of the same.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: October 22, 2013
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masakazu Sugiyama, Kunihiko Watanabe, Nao Funakoshi, Yusuke Amino, Shigeru Kawahara, Tadashi Takemoto
  • Publication number: 20130260420
    Abstract: The present invention relates to isolated polypeptides having cellobiohydrolase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
    Type: Application
    Filed: January 26, 2012
    Publication date: October 3, 2013
    Inventors: Marc D. Morant, Paul Harris
  • Publication number: 20130260423
    Abstract: The present invention relates to methods of saccharifying the trash (leaf) fraction of sugar cane using enzymes.
    Type: Application
    Filed: October 26, 2011
    Publication date: October 3, 2013
    Applicants: NOVOZYMES NORTH AMERICA, INC., NOVOZYMES A/S
    Inventors: Benjamin Knudsen, Armindo Ribeiro Gaspar
  • Patent number: 8535920
    Abstract: The present invention relates to a process for producing efficiently glutamic acid derivatives (including salts thereof) such as monatin by converting a substituted ?-keto acid of formula (1) into a glutamic acid derivative of formula (2) in the presence of an enzyme catalyzing conversion of the same.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: September 17, 2013
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masakazu Sugiyama, Kunihiko Watanabe, Nao Funakoshi, Yusuke Amino, Shigeru Kawahara, Tadashi Takemoto
  • Publication number: 20130227748
    Abstract: The present invention relates to polypeptide having cellulolytic enhancing activity variants. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the variants.
    Type: Application
    Filed: September 29, 2011
    Publication date: August 29, 2013
    Applicant: Novozymes, Inc.
    Inventors: Matt Sweeney, Mark Wogulis
  • Publication number: 20130217078
    Abstract: The present invention relates to isolated polypeptides having cellulolytic enhancing activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
    Type: Application
    Filed: April 4, 2013
    Publication date: August 22, 2013
    Applicants: Novozymes, Inc., Novozymes A/S
    Inventors: Novozymes A/S, Novozymes, Inc.
  • Publication number: 20130217079
    Abstract: The present invention relates to variants of a parent beta-glucosidase. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the variants.
    Type: Application
    Filed: September 30, 2011
    Publication date: August 22, 2013
    Applicant: Novozymes, Inc.
    Inventors: Mark Wogulis, Paul Harris, David Osborn
  • Publication number: 20130210087
    Abstract: The present invention provides isolated polypeptides having cellobiohydrolase activity and isolated polynucleotides encoding the polypeptides. The invention also provides nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
    Type: Application
    Filed: November 4, 2011
    Publication date: August 15, 2013
    Applicant: NOVOZYMES INC.
    Inventors: Ye Liu, Lan Tang
  • Publication number: 20130203136
    Abstract: Strains of cyanobacteria that produce high levels of alpha ketoglutarate (AKG) and pyruvate are disclosed herein. Methods of culturing these cyanobacteria to produce AKG or pyruvate and recover AKG or pyruvate from the culture are also described herein. Nucleic acid sequences encoding polypeptides that function as ethylene-forming enzymes and their use in the production of ethylene are further disclosed herein. These nucleic acids may be expressed in hosts such as cyanobacteria, which in turn may be cultured to produce ethylene.
    Type: Application
    Filed: July 27, 2012
    Publication date: August 8, 2013
    Applicant: ALLIANCE FOR SUSTAINABLE ENERGY, LLC
    Inventors: Jianping YU, Troy PADDOCK, Damian CARRIERI, Pin-Ching MANESS, Michael SEIBERT
  • Publication number: 20130196387
    Abstract: The present invention provides isolated polypeptides having endoglucanase activity and isolated polynucleotides encoding the polypeptides. The invention also provides nucleic acid constructs, vectors, and host cell comprising the polynucleotides as well as methods of producing and using the polypeptides.
    Type: Application
    Filed: November 11, 2011
    Publication date: August 1, 2013
    Applicant: Novozymes Inc.
    Inventors: Ye Liu, Junxin Duan, Lan Tang
  • Publication number: 20130189747
    Abstract: The present invention relates to compositions comprising: a polypeptide having cellulolytic enhancing activity and a sulfur-containing compound. The present invention also relates to methods of using the compositions.
    Type: Application
    Filed: August 5, 2011
    Publication date: July 25, 2013
    Applicant: NOVOZYMES, INC.
    Inventor: Feng Xu
  • Publication number: 20130189734
    Abstract: The present invention provides isolated polypeptides having cellobiohydrolase activity and isolated polynucleotides encoding the polypeptides. The invention also provides nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
    Type: Application
    Filed: November 2, 2011
    Publication date: July 25, 2013
    Applicant: NOVOZYMES INC.
    Inventors: Ye Liu, Lan Tang, Junxin Duan
  • Publication number: 20130183713
    Abstract: The present invention relates to isolated polypeptides having beta-glucosidase activity, beta-xylosidase activity, or beta-glucosidase and beta-xylosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
    Type: Application
    Filed: August 30, 2011
    Publication date: July 18, 2013
    Applicants: NOVOYZMES A/S, NOVOZYMES, INC.
    Inventor: Marc Morant
  • Patent number: 8383375
    Abstract: The present invention relates to a novel thermostable gluconate dehydratase from the thermoacidophilic archaeon Sulfolobus solfataricus, a coding sequence, and an expression system. The gluconate dehydratase has a molecular weight of about 320,000 to 380,000 daltons as the native protein, and about 40,000 to 50,000 daltons as the monomer protein, and catalyzes the dehydration reaction of aldonic acids to 2-keto-3-deoxy derivatives at temperatures of less than 120° C. The gluconate dehydratase can be produced from native or recombinant host cells and thereby used in the pharmaceutical, agricultural, and other industries.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: February 26, 2013
    Assignees: Posco, Postech Foundation
    Inventors: Seonghun Kim, Sun Bok Lee
  • Publication number: 20120329095
    Abstract: Provided is a method of producing succinic acid in which a microorganism having a succinic acid-producing ability is allowed to react with a sugar, the method being characterized in that the ratio of the oxygen transfer rate to the succinic acid production rate (mmol-O2/mol-SA) is 0.1 to 240 and that the doubling time of the microorganism during the reaction is not shorter than 40 hours.
    Type: Application
    Filed: September 7, 2012
    Publication date: December 27, 2012
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Katsunori YOSHIKAWA, Daisuke KIDO, Makoto MURASE
  • Publication number: 20120244587
    Abstract: A fermentation process includes contacting a carbohydrate source with a microorganism in an aqueous fermentation broth to form a fermentation product which is a salt or a product with a boiling point above the boiling point of water. The fermentation process is carried out at a pressure which is below atmospheric pressure and at least at the value where the reaction medium is at its boiling point at the fermentation temperature. Water is evaporated and removed from the reactor during the fermentation in an amount which is at least 20% of the volume of liquid present in the reactor at the start of the fermentation. A fermentation process at reduced pressure while removing a substantial amount of water removes a surplus of water in the system, ensures removal of reaction heat, and may lead to improved fermentation quality.
    Type: Application
    Filed: October 14, 2010
    Publication date: September 27, 2012
    Applicant: Purac Biochem BV
    Inventors: Jan Van Breugel, Willem Jacob Groot, Peter Paul Jansen
  • Patent number: 8273556
    Abstract: 4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxaloacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 25, 2012
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masakazu Sugiyama, Kunihiko Watanabe, Shigeru Kawahara
  • Publication number: 20120231512
    Abstract: The present invention relates to a method for preparing alpha-ketopimelic acid, comprising converting 2-hydroxyheptanedioic acid into alpha-ketopimelic acid, which conversion is catalysed using a biocatalyst. Further, the invention relates to a heterologous cell, comprising a nucleic acid sequence encoding an enzyme having catalytic activity in the conversion of 2-hydroxyheptanedioic acid into alpha-ketopimelic acid. Further, the invention relates to the use of a heterologous cell according to the invention in the preparation of caprolactam, diaminohexane or adipic acid.
    Type: Application
    Filed: September 10, 2010
    Publication date: September 13, 2012
    Applicant: DSM IP ASSETS B.V.
    Inventors: Petronella Catharina Raemakers-Franken, Axel Christoph Trefzer, Linda Vermote
  • Publication number: 20120156737
    Abstract: The invention relates to a method for preparing alpha-ketopimelic acid, comprising converting alpha-ketoglutaric acid into alpha-ketoadipic acid and converting alpha-ketoadipic acid into alpha-ketopimelic acid, wherein at least one of these conversions is carried out using a heterologous biocatalyst. The invention further relates to a heterologous cell, comprising one or more heterologous nucleic acid sequences encoding one or more heterologous enzymes capable of catalysing at least one reaction step in the preparation of alpha-ketopimelic acid from alpha-ketoglutaric acid.
    Type: Application
    Filed: March 11, 2010
    Publication date: June 21, 2012
    Applicant: DSM IP ASSETS B.V.
    Inventors: Petronella Catharina Raemakers-Franken, Martin Schurmann, Axel Christoph Trefzer, Stefaan Marie Andre De Wildeman
  • Publication number: 20120040416
    Abstract: 4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxaloacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
    Type: Application
    Filed: September 30, 2011
    Publication date: February 16, 2012
    Applicant: Ajinomoto Co., Inc.
    Inventors: Masakazu SUGIYAMA, Kunihiko Watanabe, Shigeru Kawahara
  • Patent number: 8076106
    Abstract: A process for producing high yields of enantioselective amino acids and chiral amines by reacting a keto acid or ketone and an amino acid donor in the presence of a transaminase biocatalyst to produce a keto acid by-product and an amino acid or amine product. Further reacting the keto acid by-product with a peroxide to increase the yield of additional amino acid or amine product.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: December 13, 2011
    Assignee: Richmond Chemical Corporation
    Inventors: Ian Fotheringham, Nicholas Oswald
  • Patent number: 8067193
    Abstract: A process of separating suspended solids from a fermentation liquor by subjecting the liquor to a solids-liquid separation stage, wherein the fermentation liquor is produced in a fermentation process for the production of a fermentation product, in which the liquor has been subjected to a temperature of at least 50° C., wherein the solids-liquid separation stage is assisted by a treatment system, characterised in that the treatment system comprises an anionic polymer selected from natural polymers and modified natural polymers having a high anionic charge such that the equivalent weight is below 300, and synthetic polymers formed from at least 50% by weight anionic monomer units.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: November 29, 2011
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventors: Jonathan Hughes, Rajesh Mistry, Kenneth Charles Symes
  • Patent number: 8058038
    Abstract: 4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxalacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: November 15, 2011
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masakazu Sugiyama, Kunihiko Watanabe, Shigeru Kawahara
  • Publication number: 20110217740
    Abstract: Disclosed herein are methods of degrading plant biomass, and microorganisms and polypeptides used in such methods, hi certain embodiments, the methods include growing Anaerocellum thermophilum on a substrate that comprises plant biomass under conditions effective for the A. thermophilum to convert at least a portion of the plant biomass to a water soluble product or a water insoluble product, hi some cases, the method can further include one or more steps to further process the water soluble product or a water insoluble product to produce, for example, a biofuel or commodity chemical. In another aspect, microorganisms that include at least one A. thermophilum plant biomass utilization polynucleotide are disclosed. Also disclosed are methods of transferring one or more A. thermophilum plant biomass utilization polynucleotides to a recipient microorganism. A. thermophilum plant biomass utilization polynucleotides and polypeptides encoded by such polynucleotides are also disclosed.
    Type: Application
    Filed: August 26, 2009
    Publication date: September 8, 2011
    Applicant: University of Georgia Research
    Inventors: Michael W.W. Adams, Janet Westpheling, Scott Hamilton-Brehm, Irina Kataeva, Sung-Jae Yang, Farris Poole
  • Publication number: 20110201061
    Abstract: Disclosed are a method of hydrolysis of wet fiber and a method for preparing ethanol. Generally, an agricultural plant material, such as corn hulls, distiller's dried grains, or spent germ, is treated to at least partially hydrolyze the fiber. The process may include a maceration step followed by a shearing operation in the presence of steam to yield a treated product, in which, in many embodiments, saccharides will be released and unbound from fibrous portions of the agricultural product. In some embodiments, the process includes macerating the material to provide a slurry having a solids content of at least 10 percent and jet cooking the slurry. A mixture of saccharides prepared in this fashion may be fermented to yield ethanol and/or biochemicals.
    Type: Application
    Filed: February 16, 2011
    Publication date: August 18, 2011
    Inventors: Sarjit Johal, Steven L. Ramsden, Zachary J. Halloran, Albert J. Pollmeier
  • Publication number: 20110129885
    Abstract: The invention relates to an isolated genetically modified microorganism in which the gene IDH1 and at least one of the genes SDH2 and DIC1 are under the control of a first promoter that is repressed to a growth culture medium by means of a cultivation additive and is active in the absence of the cultivation additive. The genes that are part of the group comprising “PYC1, ACS1, CIT1, ACO1, ICL1, MSL1, and CIT2, optionally also MDH3” are constitutively active. The invention further relates to uses of such a microorganism, especially for producing succinic acid.
    Type: Application
    Filed: April 16, 2008
    Publication date: June 2, 2011
    Applicant: ORGANO-BALANCE GMBH
    Inventors: Christine Lang, Markus Veen, Mewes Böttner, Andreas Raab
  • Publication number: 20110111471
    Abstract: The present invention relates to a novel thermostable gluconate dehydratase from the thermoacidophilic archaeon Sulfolobus solfataricus, a coding sequence, and an expression system. The gluconate dehydratase has a molecular weight of about 320,000 to 380,000 daltons as the native protein, and about 40,000 to 50,000 daltons as the monomer protein, and catalyzes the dehydration reaction of aldonic acids to 2-keto-3-deoxy derivatives at temperatures of less than 120° C. The gluconate dehydratase can be produced from native or recombinant host cells and thereby used in the pharmaceutical, agricultural, and other industries.
    Type: Application
    Filed: October 22, 2010
    Publication date: May 12, 2011
    Inventors: Seonghun Kim, Sun Bok Lee
  • Publication number: 20100330630
    Abstract: The invention provides spray-dried preparations of microbes and methods of using those microbes.
    Type: Application
    Filed: November 16, 2007
    Publication date: December 30, 2010
    Applicant: University of Iowa Research Foundation
    Inventors: Venkiteswaran Subramanian, James H. Glenn IV, Shuvendu Das
  • Publication number: 20100323412
    Abstract: The present invention relates to novel genes that encode proteins that are involved in the synthesis of L-ascorbic acid (hereinafter also referred to as Vitamin C) and/or 2-keto-L-gulonic acid (hereinafter also referred to as 2-KGA). The invention also features polynucleotides comprising the full-length polynucleotide sequences of the novel genes and fragments thereof, the novel polypeptides encoded by the polynucleotides and fragments thereof, as well as their functional equivalents. The present invention also relates to modified proteins and polynucleotides encoding said modified proteins as well as to modified microorganisms, wherein the modification has a direct or indirect impact on yield, production, and/or efficiency of production of Vitamin C and/or 2-KGA in said microorganisms. Also included are processes of using the modified polynucleotide sequences to transform host microorganisms.
    Type: Application
    Filed: January 9, 2009
    Publication date: December 23, 2010
    Inventor: Bastien CHEVREUX
  • Publication number: 20100112647
    Abstract: An acidic substance having a carboxyl group is produced by culturing in a medium a microorganism which has been modified to enhance expression of the ybjL gene, and collecting the acidic substance having a carboxyl group from the medium.
    Type: Application
    Filed: October 15, 2009
    Publication date: May 6, 2010
    Inventors: Yoshihiko Hara, Keita Fukui, Yoshinori Tajima, Kazue Kawamura, Yoshihiro Usuda, Kazuhiko Matsui