Containing A Carboxyl Group Patents (Class 435/136)
  • 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
  • Publication number: 20120244586
    Abstract: Methods and materials related to producing 3-HP as well as other organic compounds are disclosed. Specifically, isolated nucleic acids, polypeptides, host cells, and methods and materials for producing 3-HP and other organic compounds are disclosed.
    Type: Application
    Filed: May 9, 2012
    Publication date: September 27, 2012
    Inventors: Ravi R. Gokarn, Olga V. Selifonova, Holly Jean Jessen, Steven John Gort, Thorsten Selmer, Wolfgang Buckel
  • 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: 20120237989
    Abstract: A method for the production water insoluble reactive lignin having low sulfur content and lignosulfonates from lignocellulosic material in a batch or continuous process. Lignocellulosic material is fractionated to produce water insoluble native lignin and lignosulfonates in various ratios, while preserving the cellulose and hydrolyzed hemicelluloses using water, ethanol and sulfur dioxide.
    Type: Application
    Filed: September 19, 2008
    Publication date: September 20, 2012
    Applicant: API Intellectual Property Holdings, LLC
    Inventors: Theodora Retsina, Vesa Pylkkanen
  • Publication number: 20120237979
    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: September 30, 2010
    Publication date: September 20, 2012
    Applicant: NOVOZYMES A/S
    Inventors: Junxin Duan, Kirk Matthew Schnorr, Wenping Wu
  • Publication number: 20120237990
    Abstract: A non-naturally occurring eukaryotic or prokaryotic organism includes one or more gene disruptions occurring in genes encoding enzymes imparting increased fumarate, malate or acrylate production in the organism when the gene disruption reduces an activity of the enzyme. The one or more gene disruptions confers increased production of acrylate onto the organism. Organisms that produce acrylate have an acrylate pathway that at least one exogenous nucleic acid encoding an acrylate pathway enzyme expressed in a sufficient amount to produce acrylate, the acrylate pathway comprising a decarboxylase. Methods of producing fumarate, malate or acrylate include culturing these organisms.
    Type: Application
    Filed: February 13, 2012
    Publication date: September 20, 2012
    Applicant: Genomatica, Inc.
    Inventors: Mark J. BURK, Anthony P. Burgard, Priti Pharkya
  • Publication number: 20120231511
    Abstract: Disclosed is a preparation method for bio-fuel materials and bio-chemicals comprising the following steps: preparing a medium comprising fermentation waste generated in an alcohol production process; inoculating a first microorganism into the medium; and culturing the medium wherein the first microorganism was inoculated. More specifically, the preparation method for bio-fuel materials and bio-chemicals comprises the following steps: fermenting hexoses from a mixture of pentoses and hexoses to produce an ethanol fermentation broth; separating and purifying the ethanol fermentation broth; preparing a medium comprising the fermentation waste produced in the separation and purification step; inoculating a first microorganism into the medium; and culturing the medium wherein the first microorganism was inoculated.
    Type: Application
    Filed: September 13, 2010
    Publication date: September 13, 2012
    Applicants: CHANGHAE ETHANOL CO., LTD., GS CALTEX CORPORATION
    Inventors: Julia Lee, Hyo Hak Song, Moon Ho Ueom, Jung Hee Cho, Do Young Seung, Gi-Wook Choi, Se-Kwon Moon, Sung Hoon Park, Yule Kim, Min Hee Han
  • Publication number: 20120231510
    Abstract: The invention relates to a multi-cellulase enzyme composition for the enzymatic hydrolysis of cellulosic biomass said composition comprising a cellobiohydrolase (CBH) enzyme, an endoglucanase (EG) enzyme and a ?-glucosidase (BG) enzyme.
    Type: Application
    Filed: November 18, 2010
    Publication date: September 13, 2012
    Applicant: Codexis, Inc.
    Inventors: Kripa Rao, Ish Dhawan, Sally Postlethwaite, Jie Yang
  • Patent number: 8263372
    Abstract: The present invention relates to improvement in efficiency in gasification for use with syngas fermentation. In particular, the invention relates to increasing the overall carbon capture efficiency of a gasification/fermentation process to produce products such as alcohols.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: September 11, 2012
    Assignee: LanzaTech New Zealand Limited
    Inventor: Simon David Oakley
  • Publication number: 20120225451
    Abstract: The present invention relates to genetic modifications in eukaryotic host cells that have been transformed to express a xylose isomerase that confers on the host cell the ability to isomerize xylose to xylulose. These genetic modifications are aimed at improving the efficiency of xylose metabolism and include. e.g., reduction of nonspecific aldose reductase activity, increased xylulose kinase activity and increased flux of the pentose phosphate pathway. The modified host cells of the invention are suitable for the production of a wide variety of fermentation products, including ethanol, in fermentation processes in which a source of xylose or a source of xylose and glucose are used as carbon source.
    Type: Application
    Filed: September 2, 2011
    Publication date: September 6, 2012
    Applicant: Technische Universiteit Delft
    Inventors: Aaron Adriaan WINKLER, Sipko Maarten Kuyper, Wilhelmus Theodorus Antonius Maria De Laat, Johannes Pieter Van Dijken, Jacobus Thomas Pronk
  • Publication number: 20120225460
    Abstract: A method for processing biomass that includes forming a first pile comprising biomass; inoculating said first pile comprising biomass; circulating a liquid in said first pile; fermenting the biomass in said first pile to produce a carboxylate salt; and extracting at least a portion of the liquid in the first pile and passing said portion of liquid to a second pile comprising biomass, wherein said second pile is operating at a higher carboxylate salt concentration than said first pile.
    Type: Application
    Filed: May 16, 2012
    Publication date: September 6, 2012
    Applicant: The Texas A&M University System
    Inventors: Mark T. Holtzapple, Richard Davison, Cesar Granda, Gary P. Noyes, Edward Darlington, III
  • Publication number: 20120219997
    Abstract: The present invention refers to the new Escherichia coli strains denominated JU15, JU15A, LL26 and MS04 and their derivatives that produce metabolites, particularly D-lactate, L-lactate or ethanol, with high yield and selectivity from a wide variety of carbon sources, such as culture media with a high xylose content (as the main carbon source) and, in particular, media formulated with hydrolyzed vegetables, such as sugarcane bagasse, agave bagasse and fast-growing grasses, and a wide variety of agricultural and industrial wastes, such as whey or forestry wastes, celluloses, grasses, agave bagasse, paper wastes, shavings and sawdust, shrubs and generally any material derived from lignocellulose. These strains use the production of the metabolite of interest (especially D-lactate, L-lactate or ethanol) as the only way of regenerating the reducing power.
    Type: Application
    Filed: August 6, 2010
    Publication date: August 30, 2012
    Inventors: Alfredo Martinez Jimenez, Guillermo Gosset Lagarda, Georgina Teresa Hernandez Chavez, Gerardo Huerta Beristain, Berenice Trujillo Martinez, Jose Utrilla Carreri
  • Publication number: 20120219998
    Abstract: The present invention provides for a polyketide synthase (PKS) capable of synthesizing trimethylpentanoic acid. The present invention also provides for a host cell comprising the PKS and when cultured produces the trimethylpentanoic acid. The present invention also provides for a method of producing the trimethylpentanoic acid, comprising: providing a host cell of the present invention, and culturing said host cell in a suitable culture medium such that the trimethylpentanoic acid is produced, optionally isolating the trimethylpentanoic acid, and optionally, reducing the isolated trimethylpentanoic acid into a trimethylpentanol or an iso-octane.
    Type: Application
    Filed: November 22, 2011
    Publication date: August 30, 2012
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Leonard Katz, Jeffrey L. Fortman, Jay D. Keasling
  • Patent number: 8252562
    Abstract: Disclosed herein are enzyme powders comprising a spray-dried formulation of at least one CE-7 esterase, at least one oligosaccharide excipient, and optionally at least one surfactant. Also disclosed herein is a process for producing peroxycarboxylic acids from carboxylic acid esters using the aforementioned enzyme powders. Further, disinfectant and laundry care formulations comprising the peracids produced by the processes described herein are provided.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: August 28, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert DiCosimo, Arie Ben-Bassat, Mark S. Payne, Raymond Richard Zolandz
  • Publication number: 20120214197
    Abstract: The present invention relates to isolated polypeptides having glucoamylase 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: November 30, 2010
    Publication date: August 23, 2012
    Applicants: NOVOZYMES NORTH AMERICA, INC., NOVOZYMES A/S
    Inventors: Sara Landvik, Marc Dominique Morant, Keiichi Ayabe, Guillermo Coward-Kelly
  • Publication number: 20120214211
    Abstract: The invention relates to a recombinant coryneform bacterium which secretes an organic chemical compound and in which the sugR gene which codes for a polypeptide having the activity of an SugR regulator has been attenuated. The invention further relates to a processes for using this bacterium for the fermentative preparation of organic chemical compounds.
    Type: Application
    Filed: January 21, 2012
    Publication date: August 23, 2012
    Applicants: Forschungszentrum Julich GmbH, Evonik Degussa GmbH
    Inventors: Brigitte Bathe, Bastian Blombach, Bernhard Eikmanns, Verena Engels, Georg Thierbach, Volker Wendisch
  • Publication number: 20120208231
    Abstract: The invention relates to an eukaryotic cell expressing nucleotide sequences encoding the ara A, ara B and ara D enzymes whereby the expression of these nucleotide sequences confers on the cell the ability to use L-arabinose and/or convert L-arabinose into L-ribulose, and/or xylulose 5-phosphate and/or into a desired fermentation product such as ethanol. Optionally, the eukaryotic cell is also able to convert xylose into ethanol.
    Type: Application
    Filed: January 6, 2012
    Publication date: August 16, 2012
    Applicant: DSM IP ASSETS B.V.
    Inventors: Antonius Jeroen Adriaan VAN MARIS, Jacobus Thomas PRONK, Hendrik Wouter WISSELINK, Johannes Pieter VAN DIJKEN, Aaron Adriaan WINKLER, Johannes Hendrik DE WINDE
  • Patent number: 8241880
    Abstract: Biomass is pretreated using an organic solvent solution under alkaline conditions in the presence of one or more alkylamine and optionally one or more additional nucleophile to fragment and extract lignin. Pretreated biomass is further hydrolyzed with a saccharification enzyme consortium. Fermentable sugars released by saccharification may be utilized for the production of target chemicals by fermentation.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: August 14, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Bruce A. Diner, Janine Fan
  • Patent number: 8241877
    Abstract: The invention provides a non-naturally occurring microbial organism having a 2-hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid pathway. The microbial organism contains at least one exogenous nucleic acid encoding an enzyme in a 2-hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid pathway. The invention additionally provides a method for producing 2-hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid. The method can include culturing a 2-hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid producing microbial organism expressing at least one exogenous nucleic acid encoding a 2-hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid pathway enzyme in a sufficient amount and culturing under conditions and for a sufficient period of time to produce 2-hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: August 14, 2012
    Assignee: Genomatica, Inc.
    Inventors: Anthony P. Burgard, Mark J. Burk, Robin E. Osterhout, Priti Pharkya
  • Publication number: 20120202259
    Abstract: This invention relates to the metabolic evolution of a microbial organism previously optimized for producing an organic acid in commercially significant quantities under fermentative conditions using a hexose sugar as sole source of carbon in a minimal mineral medium. As a result of this metabolic evolution, the microbial organism acquires the ability to use pentose sugars derived from cellulosic materials for its growth while retaining the original growth kinetics, the rate of organic acid production and the ability to use hexose sugars as a source of carbon. This invention also discloses the genetic change in the microorganism that confers the ability to use both the hexose and pentose sugars simultaneously in the production of commercially significant quantities of organic acids.
    Type: Application
    Filed: November 17, 2010
    Publication date: August 9, 2012
    Applicant: Myriant Corporation
    Inventors: Tammy Grabar, Wei Gong, R. Rogers Yocum
  • Publication number: 20120196338
    Abstract: Methods and compositions are provided for improving the production of products, such as fuel products like ethanol, in microorganisms. In particular, methods and compositions are described for improving ethanol production utilizing genes identified in Clostridium phytofermentans.
    Type: Application
    Filed: April 14, 2011
    Publication date: August 2, 2012
    Applicants: Qteros, Inc., University of Massachusetts
    Inventors: Jeffrey Blanchard, Susan Leschine, Elsa Petit, John Fabel, Matthias Schmalisch
  • Publication number: 20120198590
    Abstract: The disclosure pertains to isolated white pine toxigenic endophytes and the compounds produced by the fungal endophytes as well as methods and uses of the white pine endophytes. The isolated white pine toxigenic endophytes are useful for preparing white pine seedlings and plants that have increased tolerance to a pest and are prepared by inoculating a white pine seedling during the susceptible time window.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 2, 2012
    Applicant: J.D. IRVING, LIMITED
    Inventors: John David Miller, Greg William Adams, Mark Sumarah
  • Publication number: 20120184005
    Abstract: The invention relates to strains of bacteria of the genus Ochrobactrum, that can degrade polylactic acid. The invention also relates to an enzyme that can degrade polylactic acid, characterized in that it is produced by said bacteria strains according to the invention. The invention also relates to the applications of said bacteria strains and said enzyme that can degrade polylactic acid.
    Type: Application
    Filed: October 1, 2010
    Publication date: July 19, 2012
    Applicant: UNIVERSITE DE POITIERS
    Inventors: Thierry Ferreira, Willy Aucher
  • Publication number: 20120183993
    Abstract: The invention relates to a process for the preparation of a fermentation product from ligno-cellulosic material, comprising the following steps: a) optionally pre-treatment b) optionally washing; c) enzymatic hydrolysis; d) fermentation; and e) optionally recovery of a fermentation product; wherein in step c) an enzyme composition is used that has a temperature optimum of 55 degrees C. or more, the hydrolysis time is 40 hours or more and the temperature is 50 degrees C. or more.
    Type: Application
    Filed: October 5, 2010
    Publication date: July 19, 2012
    Applicant: DSM IP ASSETS B.V.
    Inventors: Johannes Petrus Smits, Elisabeth Maria Gierveld, Fop Cornelis Van Der Hor
  • Patent number: 8222011
    Abstract: An object of the present invention is to provide processes for producing a rubber anti-aging agent, a vulcanization accelerator and a modified natural rubber converting glucose into benzoic acid or a benzoic acid derivative by a microorganism or extracting benzoic acid or a benzoic acid derivative from a plant, converting the obtained benzoic acid or benzoic acid derivative into aniline or an aniline derivative and then making the rubber anti-aging agent, vulcanization accelerator or modified natural rubber with the aniline or aniline derivative.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: July 17, 2012
    Assignees: Sumitomo Rubber Industries, Ltd., Research Institute of Innovative Technology for the Earth
    Inventor: Keitaro Fujikura
  • Patent number: 8222012
    Abstract: A process is provided for rapidly producing target concentrations of peroxycarboxylic acids from carboxylic acid esters. More specifically, carboxylic acid esters are reacted with a source of peroxygen, such as hydrogen peroxide, in the presence of an enzyme catalyst comprising an enzyme having identity to an acetyl xylan esterase from Lactococcus lactis having perhydrolysis activity. The polypeptide is an enzyme structurally classified as a member of the carbohydrate esterase family 7 (CE-7). The peroxycarboxylic acids produced by the present process can be used in disinfecting, bleaching, and other laundry care applications. Compositions comprising the reaction components and the peroxycarboxylic acids produced by the process are also provided.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: July 17, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert DiCosimo, John Edward Gavagan, Mark Scott Payne
  • Publication number: 20120177722
    Abstract: This invention provides polypeptides having lyase activity, polynucleotides encoding these polypeptides, and meth-°ds of making and using these polynucleotides and polypeptides. In one aspect, the invention is directed to polypeptides having ammonia lyase activity, e.g., phenylalanine ammonia lyase, tyrosine ammonia lyase and/or histidine ammonia lyase activity, including thermostable and thermotolerant activity, and polynucleotides encoding these enzymes, and making and using these polynucleotides and polypeptides. The polypeptides of the invention can be used in a variety of pharmaceutical, agricultural and industrial contexts. X?NO2, Cl, Br, NH2, OH, H, alkyl at one or several o, m, and p positions R?H or alkyl.
    Type: Application
    Filed: November 2, 2011
    Publication date: July 12, 2012
    Inventors: David P. Weiner, Alexander Varvak, Toby Richardson, Mircea Podar, Ellen Burke, Shaun Healey
  • Patent number: 8216814
    Abstract: The invention provides a non-naturally occurring microbial organism having an adipate, 6-aminocaproic acid or caprolactam pathway. The microbial organism contains at least one exogenous nucleic acid encoding an enzyme in the respective adipate, 6-aminocaproic acid or caprolactam pathway. The invention additionally provides a method for producing adipate, 6-aminocaproic acid or caprolactam. The method can include culturing an adipate, 6-aminocaproic acid or caprolactam producing microbial organism, where the microbial organism expresses at least one exogenous nucleic acid encoding an adipate, 6-aminocaproic acid or caprolactam pathway enzyme in a sufficient amount to produce the respective product, under conditions and for a sufficient period of time to produce adipate, 6-aminocaproic acid or caprolactam.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: July 10, 2012
    Assignee: Genomatica, Inc.
    Inventors: Anthony P. Burgard, Priti Pharkya, Robin E. Osterhout
  • Patent number: 8216809
    Abstract: Biomass is pretreated using an organic solvent solution under alkaline conditions in the presence of elemental sulfur and optionally one or more alkylamine and/or one or more additional nucleophile to fragment and extract lignin. Pretreated biomass is further hydrolyzed with a saccharification enzyme consortium. Fermentable sugars released by saccharification may be utilized for the production of target chemicals by fermentation.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: July 10, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Bruce A. Diner, Paul Joseph Fagan, Janine Fan
  • Publication number: 20120164678
    Abstract: The invention relates to recombinant expression of a steviol or steviol glycosides biosynthetic pathway enzymes in cells and the production of steviol or steviol glycosides.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 28, 2012
    Applicant: Massachusetts Institute of Technology
    Inventors: Gregory Stephanopoulos, Parayil K. Ajikumar
  • Publication number: 20120165490
    Abstract: In certain aspects, the disclosure provides methods for producing polymers from alkenone-producing algae, such as algae species of the Isochrysis family.
    Type: Application
    Filed: November 17, 2011
    Publication date: June 28, 2012
    Inventors: Scott R. Lindell, Christopher M. Reddy
  • Patent number: 8206964
    Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: June 26, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert DiCosimo, John Edward Gavagan, Mark Scott Payne
  • Patent number: 8206963
    Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in the ratio of peracetic acid formation to peracetic acid hydrolysis specific activities (PAAF/PAAH ratio). The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: June 26, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, John Edward Gavagan, Mark S. Payne
  • Publication number: 20120156155
    Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Inventors: Robert Dicosimo, Mark Scott Payne, John Edward Gavagan
  • Publication number: 20120156156
    Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Inventors: Robert Dicosimo, Mark Scott Payne, John Edward Gavagan
  • Publication number: 20120156158
    Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Inventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
  • Publication number: 20120156157
    Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Inventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
  • Publication number: 20120156159
    Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Inventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
  • Publication number: 20120156160
    Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Inventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
  • 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: 20120156721
    Abstract: This invention provides novel chemically modified mutant serine hydrolases that catalyze a transamidation and/or a transpeptidation and/or a transesterification reaction. The modified serine hydrolases have one or more amino acid residues in a subsite replaced with a cysteine, wherein the cysteine is modified by replacing the thiol hydrogen in the cysteine with a substituent group providing a thiol side chain comprising a moiety selected from the group consisting of a polar aromatic substituent, an alkyl amino group with a positive charge, and a glycoside. In particularly preferred embodiments, the substitutents include an oxazolidinone, a C1 to C15 alkyl amino group with a positive charge, or a glycoside.
    Type: Application
    Filed: February 24, 2012
    Publication date: June 21, 2012
    Applicant: The Governing Council of the University of Toronto
    Inventors: John Bryan Jones, Michael Dickman, Richard C. Lloyd
  • Publication number: 20120149076
    Abstract: Herein disclosed is a method comprising a) fermenting biomass to produce a fermentation broth; b) separating the fermentation broth into a liquid stream and a solid or slurry stream; c) passing the liquid stream through a reverse osmosis membrane to obtain a permeate and a retentate; and d) concentrating the retentate. Herein disclosed is a method comprising a) fermenting biomass in a first fermentor to produce a first fermentation broth; b) separating the first fermentation broth into a first liquid stream and a first solid or slurry stream; c) introducing the first solid or slurry stream into a second fermentor to produce a second fermentation broth, wherein the second fermentor comprises a lower fermentation products concentration than the first fermentor; d) separating the second fermentation broth into a second liquid stream and a second solid or slurry stream; and e) passing the second liquid stream through a reverse osmosis membrane.
    Type: Application
    Filed: December 5, 2011
    Publication date: June 14, 2012
    Applicant: TERRABON MIX-ALCO, INC.
    Inventor: Cesar B. Granda
  • Publication number: 20120149078
    Abstract: The present invention relates to isolated polypeptides having acetylxylan esterase 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: March 1, 2012
    Publication date: June 14, 2012
    Applicant: NOVOZYMES A/S
    Inventors: Michelle Maranta, Kimberly Brown
  • Publication number: 20120149077
    Abstract: The present invention provides for novel metabolic pathways leading to acrylate formation in a consolidated bio-processing system (CBP) where lignocellulosic biomass is efficiently converted to acrylate. In one such metabolic pathway, pyruvate is converted to lactate, which is converted to lactoyol-CoA, which is converted to acryloyl-CoA, and which is finally converted to acrylate. In another such metabolic pathway, pyruvate is converted to L-?-alanine, which is converted to L-aspartate, which is converted to ?-alanine, which is converted to ?-alanyl-CoA, which is converted to acryloyl-CoA, and which is finally converted to acrylate. In yet another metabolic pathway, pyruvate is converted to lactate, and then lactate is converted directly to acrylate.
    Type: Application
    Filed: March 12, 2010
    Publication date: June 14, 2012
    Applicant: Mascoma Corporation
    Inventors: Arthur J. Shaw, IV, Vineet Rajgarhia
  • Patent number: 8198055
    Abstract: Ethanol and other liquid products are produced by contacting syngas components such as CO or a mixture of CO2 and H2 with a surface of a membrane under anaerobic conditions and transferring these components in contact with a biofilm on the opposite side of the membrane. These steps provide a stable system for producing liquid products such as ethanol, butanol and other chemicals. The gas fed on the membrane's gas contact side transports through the membrane to form a biofilm of anaerobic microoganisms that converted the syngas to desired liquid products. A liquid impermeable layer of the membrane assists in establishing direct gas phase contact syngas components with the microorganisms. The system can sustain production with a variety of microorganisms and membrane configurations.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: June 12, 2012
    Assignee: Coskata, Inc.
    Inventors: Rathin Datta, Shih-Perng Tsai, Rahul Basu, Seong-Hoon Yoon
  • Patent number: 8198054
    Abstract: This disclosure relates to the synthesis of the compound of formula (I) according to Scheme A below: in which R1, R2 and R3, which may be identical or different, represent, individually and independently, an alkyl group, characterized by an enzymatic hydrolysis reaction that involves placing the compound of formula (II) in contact with an enzyme that performs a chemoselective hydrolysis of only one of the two ester functions of the compound of formula (II) to obtain the compound of formula (I).
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: June 12, 2012
    Assignees: Zach System, Novacta Biosystem Limited
    Inventors: Alain Burgos, Jean-Claude Caille, Michelle Lorraine-Gradley
  • Publication number: 20120142063
    Abstract: The present disclosure relates to polypeptides having nitrilase activity, polynucleotides encoding the polypeptides, and methods of using the polypeptides.
    Type: Application
    Filed: July 22, 2010
    Publication date: June 7, 2012
    Applicant: Codexis ,Inc.
    Inventors: Anke Krebber, Emily Mundoff, Marissa Mock, Spiros Kambourakis
  • Patent number: 8178581
    Abstract: A process is provided for producing peroxycarboxylic acids from carboxylic acid esters. More specifically, carboxylic acid esters are reacted with an inorganic peroxide, such as hydrogen peroxide, in the presence of an enzyme catalyst having perhydrolysis activity. The present perhydrolase catalysts are classified as members of the carbohydrate esterase family 7 (CE-7) based on the conserved structural features. Further, disinfectant formulations comprising the peracids produced by the processes described herein are provided.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: May 15, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, John Edward Gavagan, Mark Scott Payne, Frederick B. Cooling, III
  • Patent number: 8178326
    Abstract: The invention relates to the utilization of fatty materials with substantial free fatty acid content in the production of biodiesel by the use of microbial enzymes that are effective in a solvent-free process for the production of esters of fatty acids and C1-C3 alkyl alcohols.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: May 15, 2012
    Assignees: Novozymes A/S, N.V. Desmet Ballestra Group S.A.
    Inventors: Wim De Greyt, Marc Kellens, Hans Christian Holm, Morten Wurtz Christensen, Per Munk Nielsen
  • Publication number: 20120115186
    Abstract: The present invention relates to a process for the production of one or more fermentation product from a sugar composition, comprising the following steps: a) fermentation of the sugar composition in the presence of a yeast belonging to the genera Saccharomyces, Kluyveromyces, Candida, Pichia, Schizosaccharomyces, Hansenula, Kloeckera, Schwanniomyces or Yarrowia, and b) recovery of the fermentation product, wherein the yeast comprises the genes araA, araB and araD and the sugar composition comprises glucose, galactose and arabinose.
    Type: Application
    Filed: July 6, 2010
    Publication date: May 10, 2012
    Applicant: DSM IP ASSETS B.V.
    Inventors: Paul Klaassen, Gijsberdina Pieternella Van Suylekom, Bianca Elisabeth Maria Gielesen, Nicolette Jasmijn Broers, Beate Wiedemann, Wilhelmus Theodorus Antonius Maria De Laat