Butanol Patents (Class 435/160)
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Patent number: 9434963Abstract: This invention comprises a process for the bioconversion of a fermentable carbon source to n-butanol by a microorganism, wherein the microorganism is deficient in at least one gene or protein involved in the four-carbon compounds pathway regulation to improve the four-carbon compounds pathway, particularly by inactivation of the transcriptional repressor rex.Type: GrantFiled: March 2, 2012Date of Patent: September 6, 2016Assignee: METABOLIC EXPLORERInventor: Assia Zigha
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Patent number: 9371548Abstract: The present disclosure is directed to methods for producing butyric acid comprising fermenting a feedstock using a bacterium. The feedstock comprises lactic acid, or the feedstock comprises lactic acid and at least one carbohydrate.Type: GrantFiled: April 9, 2012Date of Patent: June 21, 2016Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yun-Huin Lin, Hom-Ti Lee, Hsiu-Yin Yin, Sz-Chwun John Hwang
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Patent number: 9303225Abstract: 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.Type: GrantFiled: July 23, 2014Date of Patent: April 5, 2016Assignee: Butamax Advanced Biofuels LLCInventors: Gail K. Donaldson, Andrew C. Eliot, Dennis Flint, Michael Charles Grady, Mehmedalija Jahic, Lori Ann Maggio-Hall, Vasantha Nagarajan, Ranjan Patnaik
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Patent number: 9284564Abstract: A stereospecific enzyme in C. autoethanogenum permits the conversion of racemic propanediol to acetone and/or propionaldehyde. Entantiomeric starting materials lead to different products. If desired, the products may be reduced to form alcohols. The reaction can be performed in various host cells, so that various materials may be used as carbon and/or energy sources.Type: GrantFiled: August 28, 2013Date of Patent: March 15, 2016Assignee: LanzaTech New Zealand LimitedInventors: Alexander Paul Mueller, Michael Koepke
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Patent number: 9284612Abstract: Methods for the fermentative production of isobutanol is provided by the fermentative growth of a recombinant microorganism expressing a highly active ketol-acid reductoisomerase enzyme in addition to other enzymes required for conversion of glucose to isobutanol.Type: GrantFiled: February 22, 2011Date of Patent: March 15, 2016Assignee: Butamax Advanced Biofuels LLCInventors: Der-Ing Liao, Mark J. Nelson, Michael G. Bramucci
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Patent number: 9284580Abstract: This invention relates to compositions, systems, and methods for producing biofuels, such as butanol, and related compounds. More specifically, provided are methods of making recombinant microorganizms having non-naturally occurring metabolic pathways for the production of biofuels, and methods of producing biofuels using such organizms. Also provided are metabolically engineered microorganizms capable of producing butanol from a substrate.Type: GrantFiled: September 30, 2011Date of Patent: March 15, 2016Inventors: Shang-Tian Yang, Mingrui Yu
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Patent number: 9267158Abstract: Multi-carbon compounds such as ethanol, n-butanol, sec-butanol, isobutanol, tert-butanol, fatty (or aliphatic long chain) alcohols, fatty acid methyl esters, 2,3-butanediol and the like, are important industrial commodity chemicals with a variety of applications. The present invention provides metabolically engineered host microorganisms which metabolize methane (CH4) as their sole carbon source to produce multi-carbon compounds for use in fuels (e.g., bio-fuel, bio-diesel) and bio-based chemicals. Furthermore, use of the metabolically engineered host microorganisms of the invention (which utilize methane as the sole carbon source) mitigate current industry practices and methods of producing multi-carbon compounds from petroleum or petroleum-derived feedstocks, and ameliorate much of the ongoing depletion of arable food source “farmland” currently being diverted to grow bio-fuel feedstocks, and as such, improve the environmental footprint of future bio-fuel, bio-diesel and bio-based chemical compositions.Type: GrantFiled: March 12, 2014Date of Patent: February 23, 2016Assignee: Intrexon CorporationInventors: William J. Coleman, Genevieve M. Vidanes, Guillaume Cottarel, Sheela Muley, Roy Kamimura, Akbar F. Javan, Jianping Sun, Eli S. Groban
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Patent number: 9238828Abstract: Provided herein are polypeptides and polynucleotides encoding such polypeptides which have ketoisovalerate decarboxylase activity. Also provided are recombinant host cells comprising such polypeptides and polynucleotides and methods of use thereof.Type: GrantFiled: July 27, 2012Date of Patent: January 19, 2016Assignee: Butamax Advanced Biofuels LLCInventors: Jessica McElvain, Daniel P O'Keefe, Brian James Paul, Mark S Payne, Steven Cary Rothman, Hongxian He
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Patent number: 9234217Abstract: This invention is intended to produce isobutanol with excellent productivity via a fermentation process. A reaction in which NADP-dependent isocitrate dehydrogenase generates NADPH from NADP is used as a source of NADPH for the reaction of converting 2-acetolactate into 2,3-dihydroxy-isovalerate in the isobutanol biosynthesis pathway.Type: GrantFiled: October 23, 2012Date of Patent: January 12, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Toru Onishi
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Patent number: 9163266Abstract: 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.Type: GrantFiled: June 11, 2014Date of Patent: October 20, 2015Assignee: BUTAMAX ADVANCED BIOFUELS LLCInventor: Larry Cameron Anthony
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Patent number: 9156760Abstract: Provided herein are methods for recovering butanol from a fermentation medium. The methods comprise providing a fermentation medium comprising butanol, water, and a recombinant microorganism comprising a butanol biosynthetic pathway, wherein the recombinant microorganism produces butanol; contacting the fermentation medium with a water immiscible organic extractant composition comprising a dry solvent to form a butanol-containing organic phase and an aqueous phase; and recovering the butanol from the butanol-containing organic phase.Type: GrantFiled: March 14, 2014Date of Patent: October 13, 2015Assignee: BUTAMAX ADVANCED BIOFUELS LLCInventor: Joseph J Zaher
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Patent number: 9145529Abstract: This invention provides processes to convert biomass into energy-dense biomass for combustion, alone or in combination with another solid fuel. Some embodiments provide processes for producing energy-dense biomass from cellulosic biomass, comprising extracting the feedstock with steam and/or hot water to produce an extract liquor containing hemicellulosic oligomers, dissolved lignin, and cellulose-rich solids; separating the extract liquor, to produce dewatered cellulose-rich solids; hydrolyzing the dewatered cellulose-rich solids, thereby removing a portion of the cellulose, to produce intermediate solids (with higher energy density) and a hydrolysate; drying the intermediate solids to produce energy-dense biomass; and optionally recovering fermentable sugars from the hydrolysate. The energy-dense biomass may be pelletized into biomass pellets, which may have a similar energy density as torrefied pellets from wood.Type: GrantFiled: February 5, 2014Date of Patent: September 29, 2015Assignee: API Intellectual Property Holdings, LLCInventors: Theodora Retsina, Vesa Pylkkanen
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Patent number: 9121041Abstract: The present invention concerns a new method for the biological preparation of a diol comprising culturing a microorganism genetically modified for the bioproduction of an aliphatic diol, wherein the microorganism comprises a metabolic pathway for the decarboxylation of a hydroxy-2-keto-aliphatic acid metabolite with an enzyme having a 2-keto acid decarboxylase activity, the product obtained from said decarboxylation step being further reduced into the corresponding aliphatic diol, and wherein the microorganism is genetically modified for the improved production of said hydroxy-2-keto-aliphatic acid metabolite. The invention also concerns a modified microorganism for the production of an aliphatic diol.Type: GrantFiled: June 27, 2011Date of Patent: September 1, 2015Assignee: METABOLIC EXPLORERInventors: Philippe Soucaille, Cédric Boisart
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Patent number: 9085789Abstract: Provided herein are methods for producing a fermentation product, such as ethanol, by co-culture of a member of the genus Paenibacillus and an ethanologenic microbe, such as yeast or E. coli. Also provided are methods for making enzymes useful in the saccharification of a pretreated lignocellulosic material. The enzymes may be made by culturing a member of the genus Paenibacillus in a composition suitable for production of such enzymes. An example of such a composition is a pretreated lignocellulosic material, for example, spent hydrolysates. Also provided are genetically modified members of the genus Paenibacillus that have been genetically modified to not produce an antimicrobial, for instance, a polymyxin E.Type: GrantFiled: December 10, 2013Date of Patent: July 21, 2015Assignee: University of Georgia Research Foundation, Inc.Inventors: Joy Bethune Peterson, Emily Decrescenzo-Henriksen
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Patent number: 9080179Abstract: A high flux of metabolites from pyruvate to 2,3-butanediol in Lactobacillus plantarum was achieved through genetic engineering. Substantial elimination of lactate dehydrogenase activity in the presence of heterologously expressed butanediol dehydrogenase activity led to 2,3 butanediol production that was at least 49% of the total of major pyruvate-derived products.Type: GrantFiled: April 29, 2013Date of Patent: July 14, 2015Assignee: BUTAMAX ADVANCED BIOFUELS LLCInventor: Brian James Paul
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Patent number: 9074226Abstract: The invention provides: an isopropyl alcohol-producing bacterium which has an acetoacetate decarboxylase activity, an isopropyl alcohol dehydrogenase activity, a CoA transferase activity and a thiolase activity having been imparted thereto and is capable of producing isopropyl alcohol from a plant-derived material; a method of producing isopropyl alcohol whereby isopropyl alcohol is produced from a plant-derived material by using this isopropyl alcohol-producing bacterium; and an apparatus therefor.Type: GrantFiled: July 4, 2008Date of Patent: July 7, 2015Assignee: MITSUI CHEMICALS, INC.Inventors: Nozomi Takebayashi, Mitsufumi Wada, Daisuke Mochizuki, Fuminobu Yoshimi, Seiichi Watanabe, Hitoshi Takahashi, Takashi Morishige
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Patent number: 9068190Abstract: 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.Type: GrantFiled: June 29, 2012Date of Patent: June 30, 2015Assignee: Butamax Advanced Biofuels LLCInventors: Gail K. Donaldson, Andrew C. Eliot, Dennis Flint, Lori Ann Maggio-Hall, Vasantha Nagarajan
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Patent number: 9045758Abstract: This invention provides isolated polynucleotides encoding DNA Type I methyltransferase and uses thereof for improving transformation efficiencies of exogenous and endogenous plasmid DNA into Clostridial hosts.Type: GrantFiled: March 13, 2014Date of Patent: June 2, 2015Assignee: Coskata, Inc.Inventor: Andrew Reeves
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Publication number: 20150147791Abstract: The engineering of a pathway converting CH4 to acetate and eventually to liquid fuels is disclosed. The engineered pathway involves an engineered reversal of the natural pathway for acetate conversion to CH4 by microbes and coupling the engineered pathway to existing and future technologies for microbial or chemical conversion of acetate to liquid fuels. In one aspect, methods for producing modified pathways and/or microbes are provided. In another aspect engineered microbes, including Methanosarcina acetivorans, that incorporate the engineered pathway are provided, which can mediate conversion of CH4 to acetate for ultimate conversion to liquid fuels. In a further aspect, specific modifications to the components of the pathway are provided.Type: ApplicationFiled: November 21, 2014Publication date: May 28, 2015Inventors: James Gregory Ferry, Costas D. Maranas, Thomas Keith Wood
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Publication number: 20150147786Abstract: A process for mechanical destructuring of starch-based biomass was developed that makes use of a short application of high compression, impact, and shearing forces. The biomass may be destructured using a specific energy input that is less than 40% of the total combustible energy of the biomass. The destructured starch-based biomass, with or without saccharification and/or in-feed glycosyl hydrolase enzymes, may be used in feed applications. The destructured starch-based may saccharified to produce syrups and fermentable sugars, and for production of products including ethanol using a biocatalyst.Type: ApplicationFiled: November 18, 2014Publication date: May 28, 2015Inventors: KATHLEEN A CLARKSON, F Glenn Gallagher, Aaron Perelman, Luis Fernando Romero Millan, Vivek Sharma, Jayarama K. Shetty, Daniel A. Slanac, Paula Johanna Maria Teunissen
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Patent number: 9034617Abstract: Processes are disclosed for the anaerobic bioconversion of syngas to oxygenated organic compound that use an in situ method for protecting the microorganisms from hydrogen cyanide contained in the syngas that passes to the fermentation broth. The fermentation broth is maintained at a pH of between about 4 and 6, and dissolved metal cation of one or more of iron, cobalt, nickel and zinc is provided to the fermentation broth in an amount sufficient to form, under the conditions of the fermentation broth, a substantially insoluble metal complex with the metal cation and cyanide anion. The rate of formation of the insoluble complex is sufficiently high that that the amount of cyanide that is taken up by microorganisms does not result in an undue adverse effect on the population of microorganisms.Type: GrantFiled: March 14, 2013Date of Patent: May 19, 2015Assignee: Coskata, Inc.Inventors: Robert Hickey, Jianxin Du, Andrew Reeves, Richard E. Tobey
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Patent number: 9034608Abstract: The invention relates to a polypeptide having a mutation at one or more position corresponding to T219 of SEQ ID NO: 55, wherein the polypeptide has at least 50% sequence identity with SEQ ID NO: 55, and wherein the polypeptide has permease activity.Type: GrantFiled: October 11, 2011Date of Patent: May 19, 2015Assignee: DSM IP ASSETS, B.V.Inventors: Hendrik Wouter Wisselink, Antonius Jeroen Adriaan Van Maris, Jacobus Thomas Pronk, Paul Klaassen, Rene Marcel De Jong
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Patent number: 9034618Abstract: The present invention relates to methods for sustaining microorganism culture in a syngas fermentation reactor in decreased concentration or absence of various substrates comprising: adding carbon dioxide and optionally alcohol; maintaining free acetic acid concentrations; and performing the above mentioned steps within specified time.Type: GrantFiled: March 9, 2009Date of Patent: May 19, 2015Assignee: INEOS BIO SAInventors: Stephen S. Adams, Syrona Scott, Ching-Whan Ko
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Patent number: 9034616Abstract: A method of producing butanal by optimizing the growth of Streptomyces using cellulose as food source, overexpressing a key ‘gate’ enzyme in butyric acid/butyraldehyde production, and knocking out the isobutyryl-CoA synthase gene to shunt the pathway. Optionally, the produced butanal can be isolated and converted into butanol.Type: GrantFiled: April 6, 2010Date of Patent: May 19, 2015Assignee: Syracuse UniversityInventors: Robert Doyle, Joshua Lensbouer, Anthony Vortherms
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Publication number: 20150132815Abstract: Processes are disclosed for the low energy, anaerobic bioconversion of hydrogen and carbon monoxide in a gaseous substrate stream to oxygenated organic compounds such as ethanol by contact with microorganisms in a deep, tank fermentation system with high conversion efficiency of both hydrogen and carbon monoxide. Gas feed to the reactor is injected using a motive liquid to form a stable dispersion of microbubbles thereby reducing energy costs, and a portion of the off-gases from the reactor are recycled to (i) achieve a conversion of the total moles of carbon monoxide and hydrogen in the gas substrate to oxygenated organic compound of at least about 80 percent and (ii) attenuate the risk of carbon monoxide inhibition of the microorganism used for the bioconversion.Type: ApplicationFiled: January 19, 2015Publication date: May 14, 2015Applicant: Coskata, Inc.Inventor: Robert Hickey
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Publication number: 20150135369Abstract: Provided herein are transgenic plants that include increased expression of a coding region encoding a PAE poly-peptide compared to a control plant. In one embodiment, a transgenic plant includes a phenotype of decreased recalcitrance, increased growth, or the combination thereof. Also provided herein are methods for generating transgenic plants, and methods for using transgenic plants. Examples of methods for using transgenic plants include, for instance, processing a transgenic plant described herein to result in a processed pulp, and exposing a plant material obtained from a plant described herein to conditions suitable for the production of a metabolic product.Type: ApplicationFiled: March 11, 2013Publication date: May 14, 2015Inventors: Debra A. Mohnen, Ajaya K. Biswal
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Publication number: 20150125903Abstract: The present invention provides fungal xylanase and/or xylosidase enzymes suitable for use in saccharification reactions. The present invention provides xylanase and xylosidase enzymes suitable for use in saccharification reactions. The present application further provides genetically modified fungal organisms that produce xylanase(s) and/or xylosidase(s), as well as enzyme mixtures exhibiting enhanced hydrolysis of cellulosic material to fermentable sugars, enzyme mixtures produced by the genetically modified fungal organisms, and methods for producing fermentable sugars from cellulose using such enzyme mixtures. In some embodiments, the xylanase and xylosidase enzyme(s) are M. thermophila enzymes.Type: ApplicationFiled: January 14, 2015Publication date: May 7, 2015Inventors: Nicholas John Agard, David Elgart, Jie Yang, Goutami Banerjee, Jeanne Bonomo Benoit, Dipnath Baidyaroy
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Publication number: 20150125902Abstract: Provided are isolated polypeptides having glucoamylase activity, catalytic domains, and polynucleotides encoding the polypeptides, catalytic 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.Type: ApplicationFiled: August 24, 2012Publication date: May 7, 2015Applicant: Novozymes A/SInventors: Tianqi Sun, Ming Li
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Publication number: 20150125920Abstract: 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.Type: ApplicationFiled: December 16, 2014Publication date: May 7, 2015Inventors: LARRY CAMERON ANTHONY, LORI ANN MAGGIO-HALL
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Publication number: 20150125906Abstract: The present invention relates to methods of degrading or converting biomass material enriched with hemicellulosic material into fermentable sugars.Type: ApplicationFiled: January 14, 2015Publication date: May 7, 2015Inventors: Prashant Iyer, Harry Showmaker, Hui Xu, Kishore Rane
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Publication number: 20150119608Abstract: 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.Type: ApplicationFiled: December 30, 2014Publication date: April 30, 2015Inventors: Gail K. Donaldson, Andrew C. Eliot, Dennis Flint, Lori Ann Maggio-Hall, Vasantha Nagarajan
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Publication number: 20150111266Abstract: The invention provides processes and methods for utilization of carbon dioxide (CO2) in the fermentation of a gaseous substrate comprising hydrogen (H2) and CO2. In particular, the invention allows for the conversion of at least a portion of the CO2 in the gaseous substrate to one or more products, such as ethanol, acetate, and/or 2,3-butanediol.Type: ApplicationFiled: October 16, 2014Publication date: April 23, 2015Inventors: Joseph Henry Tizard, Paul Alvin Sechrist
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Publication number: 20150111269Abstract: Methods for the evolution of NADPH specific ketol-acid reductoisomerase enzymes to acquire NADH specificity are provided. Specific mutant ketol-acid reductoisomerase enzymes isolated from Pseudomonas that have undergone co-factor switching to utilize NADH are described.Type: ApplicationFiled: December 23, 2014Publication date: April 23, 2015Inventors: Yougen LI, Der-Ing LIAO, Mark J. NELSON, Daniel P. OKEEFE
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Patent number: 9012190Abstract: The invention relates generally to the field of industrial microbiology and alcohol production. More specifically, the invention relates to the use of thiamine, biosynthetic precursors of thiamine, nicotinic acid, nicotinamid, nicotinic acid riboside, nicotinamid riboside, or other biosynthetic precursors of nicotine adenine dinucleotide (NAD) to improve butanol production. Butanol production can be improved by providing sufficient amounts of thiamine, biosynthetic precursors of thiamine, nicotinic acid, nicotinamid, nicotinic acid riboside, nicotinamid riboside, or other biosynthetic precursors of nicotine adenine dinucleotide (NAD) in the production media.Type: GrantFiled: June 15, 2011Date of Patent: April 21, 2015Assignee: Butamax Advanced Biofuels LLCInventors: Michael Dauner, Mehmedalija Jahic
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Patent number: 9012189Abstract: 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 Saccharomyces clade, Crabtree-negative yeast microorganisms, Crabtree-positive yeast microorganisms, post-WGD (whole genome duplication) yeast microorganisms, pre-WGD (whole genome duplication) yeast microorganisms, and non-fermenting yeast microorganisms.Type: GrantFiled: February 11, 2011Date of Patent: April 21, 2015Assignees: Gevo, Inc., The California Institute of TechnologyInventors: Sabine Bastian, Frances Arnold, Peter Meinhold
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Patent number: 9012188Abstract: The present invention relates to producing chemicals and biofuels from wood material, e.g. mixed forest biomass. Specifically, the invention concerns a process for conditioning spent liquor produced by SO2-ethanol-water (SEW) fractionation of wood chips for fermentation to butanol, ethanol and acetone/isopropanol (so called ABE process) by Clostridia bacteria.Type: GrantFiled: March 16, 2012Date of Patent: April 21, 2015Assignee: API Intellectual Property Holdings, LLCInventors: Adriaan Van Heiningen, Evangelos Sklavounos
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Patent number: 9005953Abstract: 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.Type: GrantFiled: May 6, 2010Date of Patent: April 14, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masayoshi Muramatsu, Shusei Obata, Satoshi Yoneda, Masahiro Sugimura, Tomohisa Kuzuyama
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Publication number: 20150099276Abstract: The present invention relates to the use of nucleic acid molecules coding for a bacterial xylose isomerase (XI), preferably coming from Clostridium phytofermentans, for reaction/metabolization, particularly fermentation, of recombinant microorganisms of biomaterial containing xylose, and particularly for the production of bioalcohols, particularly bioethanol, by means of xylose fermenting yeasts. The present invention further relates to cells, particularly eukaryotic cells, which are transformed utilizing a nucleic acid expression construct which codes for a xylose isomerase, wherein the expression of the nucleic acid expression construct imparts to the cells the capability to directly isomerize xylose into xylulose. Said cells are preferably utilized for reaction/metabolization, particularly fermentation, of biomaterial containing xylose, and particularly for the production of bioalcohols, particularly bioethanol.Type: ApplicationFiled: December 16, 2014Publication date: April 9, 2015Inventors: Dawid BRAT, Eckhard BOLES, Marco KELLER, Beate ROTHER
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Publication number: 20150093796Abstract: The present invention provides Clostridium acetobutylicum and an application thereof. A preservation number of the Clostridium acetobutylicum provided in the invention is CGMCC No. 5234. The Clostridium acetobutylicum provided in the present invention can be used for cogeneration of acetone, butanol, ethanol, and 3-hydroxy butanone through fermentation, so as to improve the economic benefit of butanol fermentation. NAD+ coupling and regeneration can be implemented by adding metabolism or growth regulating substances, so as to improve the product yield, and at the same time, the yield of cogeneration products can be flexibly adjusted, so as to cater for the market demand.Type: ApplicationFiled: March 20, 2012Publication date: April 2, 2015Inventors: Hanjie Ying, Dong Liu, Yong Chen, Yong Chen, An Li, Tao Zhou, Jinglan Wu, Xiaoqing Lin, Xiaochun Chen, Jingjing Xie, Jianxin Bai
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Publication number: 20150093790Abstract: The disclosure provides thermostable enzymes isolated from Caldicellulosiruptor bescii and fragments thereof useful for the degradation of cellulose and/or hemicellulose, including thermostable cellulases and hemicellulases. The disclosure further provides nucleic acids encoding the thermostable enzymes of the disclosure. The disclosure also provides methods for the conversion of cellulose and hemicellulose into fermentable sugars using thermostable enzymes of the disclosure. The disclosure also provides enzyme cocktails containing multiple enzymes disclosed herein. The enzymes can be used to release sugars present in cellulose or hemicellulose for subsequent fermentation to produce value-added products.Type: ApplicationFiled: December 20, 2011Publication date: April 2, 2015Applicant: The Board pf Trustees of the University of IllinoisInventors: Yejun Han, Xiaoyun Su, Dylan Dodd, Roderick I. Mackie, Issac K.O. Cann
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Patent number: 8993285Abstract: 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.Type: GrantFiled: April 30, 2010Date of Patent: March 31, 2015Assignee: Genomatica, Inc.Inventor: Anthony P. Burgard
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Publication number: 20150087031Abstract: The present invention relates to methods of processing lignocellulosic material to obtain hemicellulose sugars, cellulose sugars, lignin, cellulose and other high-value products. Also provided are hemicellulose sugars, cellulose sugars, lignin, cellulose, and other high-value products.Type: ApplicationFiled: May 3, 2013Publication date: March 26, 2015Inventors: Robert Jansen, Claire Gregoire, philip Travisano, Lee Madsen, Neta Matis, Yael Har-Tal, Shay Eliahu, James Alan Lawson, Noa Lapidot, Luke Burke, Aharon M. Eyal, Timothy Allen Bauer, Hagit Sade, Paul Mcwilliams, Ziv-Vladimir Belman, Bassem Hallac, Michael Zviely, Yelena Gershinksy, Adam Carden
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Patent number: 8986962Abstract: This invention provides co-cultures of photosynthetic microorganisms and biofuel producing microorganisms. In certain embodiments, polysaccharide-producing, photosynthetic microorganisms are microalgae having frustules provide a substrate on which biofuel-producing microorganisms can grow. In other embodiments, the photosynthetic microorganisms produce a lipid and the non-photosynthetic microorganisms produce a solvent in which the lipid is soluble.Type: GrantFiled: July 21, 2011Date of Patent: March 24, 2015Inventor: Pamela R. Contag
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Patent number: 8986948Abstract: The present invention relates to the use of nucleic acid molecules coding for a bacterial xylose isomerase (XI), preferably coming from Clostridium phytofermentans, for reaction/metabolization, particularly fermentation, of recombinant microorganisms of biomaterial containing xylose, and particularly for the production of bioalcohols, particularly bioethanol, by means of xylose fermenting yeasts. The present invention further relates to cells, particularly eukaryotic cells, which are transformed utilizing a nucleic acid expression construct which codes for a xylose isomerase, wherein the expression of the nucleic acid expression construct imparts to the cells the capability to directly isomerize xylose into xylulose. Said cells are preferably utilized for reaction/metabolization, particularly fermentation, of biomaterial containing xylose, and particularly for the production of bioalcohols, particularly bioethanol.Type: GrantFiled: July 1, 2009Date of Patent: March 24, 2015Assignee: Lesaffre et CompagnieInventors: Dawid Brat, Eckhard Boles, Marco Keller, Beate Wiedemann
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Patent number: 8986963Abstract: 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.Type: GrantFiled: March 29, 2011Date of Patent: March 24, 2015Inventor: James Weifu Lee
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Publication number: 20150082493Abstract: 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: ApplicationFiled: April 26, 2013Publication date: March 19, 2015Inventors: Janine Lin, Doreen Bohan, Michelle Maranta, Leslie Beresford, Michael Lamsa, Matt Sweeney, Mark Wogulis, Elizabeth Znameroski, Frank Winther Rasmussen
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Publication number: 20150079646Abstract: The present invention relates to yeast cells producing high levels of acetoacetyl-CoA. It also relates to a method for making such yeast cells and to the use of such yeast cells in a method for producing acetyl-CoA derived products.Type: ApplicationFiled: December 17, 2012Publication date: March 19, 2015Applicant: FIRMENICH SAInventors: Jens Nielsen, Verena Siewers, Yun Chen, Laurent Daviet, Michel Schalk
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Publication number: 20150079651Abstract: A method to recover and harvest nutrients and volatile gases such as alcohols from a liquid stream using a fixed film bioreactor. The method includes a means of concentrating product gas stripped from a bioreactor.Type: ApplicationFiled: November 20, 2014Publication date: March 19, 2015Inventor: Dennis A. Burke
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Publication number: 20150079627Abstract: The invention relates to processes of producing a fermentation product, comprising liquefying a starch containing material with an alpha-amylase; pre-saccharifying and/or saccharifying and fermenting using a fermentation organism in the presence of a carbohydrate source generating enzyme and a cellulolytic composition The invention also relates to methods of dewatering whole stillage.Type: ApplicationFiled: March 28, 2013Publication date: March 19, 2015Inventors: Thomas Rasmussen, Jeremy Saunders, James Croonenberghs, Zhengfang Kang, Joyce Craig, Michael John Akerman
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Patent number: 8980612Abstract: 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.Type: GrantFiled: May 27, 2009Date of Patent: March 17, 2015Assignee: Butamax Advanced Biofuels LLCInventors: Gail K. Donaldson, Andrew C. Eliot, Vasantha Nagarajan, Charles E. Nakamura, Jean-Francois Tomb