Acetic Acid Patents (Class 435/140)
  • Patent number: 10358662
    Abstract: The invention provides schemes for the integration of a fermentation process, with an electrolysis process, and a C1-generating industrial process. In particular, the invention provides process for utilizing electrolysis products, for example H2 and/or O2, to improve the process efficiency of at least one of the fermentation process or the C1-generating industrial process. More particularly, the invention provides a process whereby, H2 generated by electrolysis is used to improve the substrate efficiency for a fermentation process, and the O2 generated by the electrolysis process is used to improve the composition of the C1-containing tail gas generated by the C1-generating industrial process.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: July 23, 2019
    Assignee: LANZATECH NEW ZEALAND LIMITED
    Inventors: Sean Dennis Simpson, Robert John Conrado, Christophe Daniel Mihalcea, Michael Emerson Martin
  • Patent number: 10337074
    Abstract: A method of gaseous substrate fermentation comprising: adding gaseous substrate comprising carbon monoxide (CO) and hydrogen (H2) into an aqueous medium in a bioreactor; said method comprising measuring conversion of CO; measuring conversion of H2; increasing flow of gaseous substrate by a preselected flow factor; wherein agitation comprises greater than or equal to target agitation rate.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: July 2, 2019
    Inventors: Ryan Senaratne, Syrona Scott, Ching-Whan Ko
  • Patent number: 10233478
    Abstract: A process is provided that is effective for reducing CO2 emissions, enhancing STY and/or increasing cell density. The process allows for utilization of syngas from different sources by controlling concentration levels of CO, CO2 and H2 in syngas provided to the fermentation and by controlling relative concentrations of CO, CO2 and H2 in the syngas provided to the fermentation. The process includes providing syngas to a first fermentation zone and fermenting the syngas. If the first fermentation zone off-gas includes about 4 mole % or more CO, then at least a portion of the first fermentor off-gas is provided to one or more subsequent fermentation zones.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: March 19, 2019
    Inventor: Ryan Senaratne
  • Patent number: 10227615
    Abstract: High conversion efficiency processes are disclosed for the anaerobic bioconversion of syngas to alcohol. The processes use bioreactors that have a non-uniform gas composition and a substantially uniform liquid composition such as deep tank bioreactors. By maintaining certain electron to carbon mole ratios in the syngas feed to the bioreactors and certain partial pressures of carbon dioxide in the off gas from the bioreactors, at least about 80 percent of the hydrogen and at least about 95 percent of the carbon monoxide in the feed can be consumed.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: March 12, 2019
    Assignee: Synata Bio, Inc.
    Inventors: Rathin Datta, Steven G. Calderone, Jianxin Du, Robert Hickey, Richard E. Tobey
  • Patent number: 9920334
    Abstract: A reaction mixture for producing ethanol and/or acetate from a carbon source in aerobic conditions, wherein the mixture comprises a first acetogenic microorganism in an exponential growth phase; free oxygen; and a second acetogenic microorganism in a stationary phase wherein the first and second acetogenic microorganism is capable of converting the carbon source to the acetate and/or ethanol.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: March 20, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Thomas Haas, Thomas Buelter, Martin Demler, Simon Beck
  • Patent number: 9783835
    Abstract: The invention provides methods and systems for the production of lipid products from a gaseous substrate using a two stage fermentation process. The method comprises providing a gaseous substrate comprising CO, CO2 and H2 or mixtures thereof, to a first bioreactor containing a culture or one or more microorganisms, and fermenting the substrate to produce a product comprising acetate. The acetate from the first bioreactor is then provided to a second bioreactor, where it is used as a substrate for fermentation to lipids by one or more yeasts.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: October 10, 2017
    Assignee: LANZATECH NEW ZEALAND LIMITED
    Inventors: Sean Dennis Simpson, Sebastian Michal Bernasek
  • Patent number: 9586194
    Abstract: A process is disclosed for converting acetic acid to isobutene in the presence of a catalyst. In certain embodiments, a ZnxZryOz mixed oxide catalyst is used for carrying out a gas phase process for converting acetic acid to isobutene. In some embodiments, a ZnxZryOz mixed oxide catalyst made by an incipient wetness impregnation method is used and is indicated to be very stable for carrying out the conversion.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: March 7, 2017
    Assignee: Washington State University
    Inventors: Junming Sun, Changjun Liu, Yong Wang, Kevin Martin, Padmesh Venkitasubramanian
  • Patent number: 9404128
    Abstract: Processes for the bioconversion of syngas to oxygenated organic compound are disclosed that reliably, cost-effectively and efficiently supply sulfur nutrient to microorganisms contained in acidic, aqueous fermentation menstrua. In the processes of this invention, basic, aqueous solution used to maintain the pH of the aqueous fermentation menstruum is used to remove hydrogen sulfide from the off-gas from the fermentation menstruum for recycle to the fermentation menstruum.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: August 2, 2016
    Assignee: SYNATA BIO, INC.
    Inventors: Shih-Perng Tsai, Robert Hickey, Jianxin Du, Jian Xu, Joshua Schumacher
  • Patent number: 9340806
    Abstract: The subject of the present invention is a method of initiating acetic fermentation in a production fermenter using a starter culture cultured in a pilot fermenter which constitutes about 1-3% of the working volume of the production fermenter, and the production fermenter is inoculated in a continuous fashion with acetic fermentation bacteria cultured in the pilot fermenter.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: May 17, 2016
    Assignee: Instytut Biotechnologii Przemyslu Rolno-Spozywczego
    Inventors: Maria Spera, Irena Sikorska, Anna Misiewicz
  • Publication number: 20150147791
    Abstract: 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: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Inventors: James Gregory Ferry, Costas D. Maranas, Thomas Keith Wood
  • Patent number: 9040268
    Abstract: A method of operating a fermentation zone for the production of ethanol from syngas uses a crotonate-like compound to prevent or reverse the effects of butyrogen contamination. The crotonate-like compound works in continuous fermentation processes to reduce or eliminate contamination from butyrate and butanol in the syngas derived ethanol product.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 26, 2015
    Assignee: Coskata, Inc.
    Inventors: Rathin Datta, Andrew Reeves, Laura T. Kliman
  • Publication number: 20150140615
    Abstract: The present invention provides a fed-batch culture method comprising a step of fed-batch-feeding a carbon source base and a base in such a manner that the pH level can be maintained at a level suitable for the growth of microorganisms for fermentation of a carbon source. The present invention also provides a method for preparing organic acids using the fed-batch culture method. The present invention fed-batch-feeds a neutralizing agent such as ammonium bicarbonate, ammonium carbonate or alkali metal-containing weak base, and a carbon source substrate in preparing organic acids by microorganism fermentation. Thus, a pH level suitable for the survival of microorganisms for carbon source fermentation can be maintained, and the speed of injecting the carbon source base which is the source material can be appropriately adjusted.
    Type: Application
    Filed: May 21, 2013
    Publication date: May 21, 2015
    Inventors: Jae Yeon Park, Sin Young Kang, Woo Chan Park, Min Su Koo, In Ho Cho, Joong Min Park, Seung Yeop Lee, Dong Hyun Kim
  • Publication number: 20150140606
    Abstract: A method of producing a sugar liquid from cellulose-containing biomass includes (1) to (4): (1) subjecting a cellulose-containing biomass to a dilute sulfuric acid treatment and thereafter separating the treated cellulose-containing biomass into a dilute sulfuric acid-treated liquid and a cellulose-containing solid content; (2) adding a cellulase to the cellulose-containing solid content to hydrolyze the cellulose and thereafter obtaining a sugar liquid; (3) filtering the dilute sulfuric acid-treated liquid through a nanofiltration membrane at pH 2.5 or lower to thereby separate a sugar concentrated liquid as a retentate and at the same time recover a sulfuric acid aqueous solution as a permeate; and (4) reusing the whole amount or a part of the sulfuric acid aqueous solution obtained in (3) in the dilute sulfuric acid treatment in (1).
    Type: Application
    Filed: June 11, 2013
    Publication date: May 21, 2015
    Inventors: Atsushi Minamino, Hiroyuki Kurihara, Katsushige Yamada
  • Publication number: 20150132815
    Abstract: 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: Application
    Filed: January 19, 2015
    Publication date: May 14, 2015
    Applicant: Coskata, Inc.
    Inventor: Robert Hickey
  • Publication number: 20150125903
    Abstract: 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: Application
    Filed: January 14, 2015
    Publication date: May 7, 2015
    Inventors: Nicholas John Agard, David Elgart, Jie Yang, Goutami Banerjee, Jeanne Bonomo Benoit, Dipnath Baidyaroy
  • Publication number: 20150125902
    Abstract: 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: Application
    Filed: August 24, 2012
    Publication date: May 7, 2015
    Applicant: Novozymes A/S
    Inventors: Tianqi Sun, Ming Li
  • 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: 20150111267
    Abstract: The subject of the present invention is a method of initiating acetic fermentation in a production fermenter using a starter culture cultured in a pilot fermenter which constitutes about 1-3% of the working volume of the production fermenter, and the production fermenter is inoculated in a continuous fashion with acetic fermentation bacteria cultured in the pilot fermenter.
    Type: Application
    Filed: March 28, 2013
    Publication date: April 23, 2015
    Applicant: Instytut Biotechnologii Praemyslu Rolno - Spozywczego
    Inventors: Maria Spera, Irena Sikorska, Anna Misiewicz
  • Publication number: 20150111266
    Abstract: 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: Application
    Filed: October 16, 2014
    Publication date: April 23, 2015
    Inventors: Joseph Henry Tizard, Paul Alvin Sechrist
  • Publication number: 20150099276
    Abstract: 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: Application
    Filed: December 16, 2014
    Publication date: April 9, 2015
    Inventors: Dawid BRAT, Eckhard BOLES, Marco KELLER, Beate ROTHER
  • Publication number: 20150087032
    Abstract: A genetically engineered yeast cell that produces a pyruvate-based metabolite from pyruvate, wherein activity of a mitochondrial pyruvate carrier (MPC) is reduced compared to a parent yeast cell and a method of producing the pyruvate-based metabolite using the yeast cell.
    Type: Application
    Filed: July 21, 2014
    Publication date: March 26, 2015
    Inventors: Young-kyoung PARK, Chang-duk Kang, Ji-yoon Song, Ju-young Lee, Seung-hyun Lee, Kwang-myung Cho
  • Publication number: 20150087031
    Abstract: 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: Application
    Filed: May 3, 2013
    Publication date: March 26, 2015
    Inventors: 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
  • Patent number: 8986948
    Abstract: 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: Grant
    Filed: July 1, 2009
    Date of Patent: March 24, 2015
    Assignee: Lesaffre et Compagnie
    Inventors: Dawid Brat, Eckhard Boles, Marco Keller, Beate Wiedemann
  • Publication number: 20150079648
    Abstract: A stabilized biomass and a method of producing a stabilized biomass is disclosed. The biomass has active matter containing carbon atoms having an average oxidation state, inactive matter, a biological catalyst having a fermentation organism capable of converting the active matter into a renewable material, and water. The biomass has not been milled. The biomass is suitable for use in the production of renewable materials, such as ethanol.
    Type: Application
    Filed: September 19, 2014
    Publication date: March 19, 2015
    Inventor: Jacob R. Borden
  • 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: 20150079627
    Abstract: 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: Application
    Filed: March 28, 2013
    Publication date: March 19, 2015
    Inventors: Thomas Rasmussen, Jeremy Saunders, James Croonenberghs, Zhengfang Kang, Joyce Craig, Michael John Akerman
  • Patent number: 8980578
    Abstract: The present invention provides fungal xylanase and/or beta-xylosidase enzymes suitable for use in saccharification reactions. The present application further provides genetically modified fungal organisms that produce xylanase and/or beta-xylosidases, 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.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: March 17, 2015
    Assignee: Codexis, Inc.
    Inventors: Ryan Fong, Xiyun Zhang, Chris Noriega, Nicholas Agard, Anupam Gohel, Derek Smith
  • Publication number: 20150072387
    Abstract: A bioreactor system is provided for continuous fermentation of a gaseous substrate, said system comprising two or more primary bioreactors and one or more secondary bioreactors connected by a central bleed line. Further provided is a process for inoculating multiple bioreactors utilising a central bleed line, said process comprising passing fermentation broth from a first primary bioreactor to other primary bioreactors and/or secondary bioreactors via a central bleed line. Further provided is a process for maintaining stable fermentation of a gaseous substrate across multiple bioreactors, said process comprising providing fermentation broth from one or more operational primary bioreactors to one or more secondary bioreactors via a central bleed line.
    Type: Application
    Filed: July 4, 2014
    Publication date: March 12, 2015
    Inventors: Christophe Collet, Jan Yan Ng, David Nathaniel Aston
  • Publication number: 20150050707
    Abstract: A process for the treatment of biomass comprising subjecting biomass to microbial digestion to produce volatile fatty acids and/or solvents followed by wet oxidation to reduce biosolid volume while retaining or increasing the concentration of the volatile fatty acids and/or solvents.
    Type: Application
    Filed: February 27, 2014
    Publication date: February 19, 2015
    Inventors: Daniel James Gapes, Trevor Raymond Stuthridge, Peter James Strong, Robert Jason Lei, Anderson Aggrey
  • Publication number: 20150044742
    Abstract: Processes for starting up of anaerobic, deep tank fermentation systems to anaerobically bioconvert hydrogen and carbon monoxide in a gaseous substrate stream to oxygenated organic compounds and for steady operation of such fermentation systems. In the processes injectors use a motive liquid to introduce gas substrate as a stable gas-in liquid dispersion into the deep tank fermentation reactor where at least one of: (i) adjusting the gas to liquid flow ratio through an injector, (ii) changing the rate of liquid flow through an injector, and (iii) adjusting the carbon monoxide mole fraction in the gas feed by admixture with at least one other gas, wherein the mass transfer of carbon monoxide to an aqueous menstruum in the reactor is controlled to obtain the robust growth of the microorganism and/or continued conversion of gas substrate while maintaining the carbon monoxide concentration below that amount which is unduly adverse to the microorganism.
    Type: Application
    Filed: October 28, 2014
    Publication date: February 12, 2015
    Applicant: Coskata, Inc.
    Inventors: Robert Hickey, Richard E. Tobey, Shih-Perng Tsai
  • 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: 20150031099
    Abstract: A reactor system is provided for improved fermentation of a gaseous substrate through the introduction of a secondary loop to a forced-circulation loop reactor. The reactor comprises a primary loop through which fermentation broth comprising a gaseous substrate is circulated through a riser segment and a downcomer section by a loop pump. Downstream of the loop pump a portion of fermentation broth is withdrawn from the downcomer section and is directed to the top of the reactor via a secondary loop. Further provided is a method for improving the mass transfer of a gaseous substrate to a fermentation broth in a fermentation vessel comprising a secondary loop. Further provided is a method for reducing foam in the headspace of a fermentation vessel comprising a secondary loop.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventors: Xueliang Li, Benjamin James Cossey, Simon Richard Trevethick
  • 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: 20150031076
    Abstract: The present invention relates to host cells transformed with a nucleic acid sequence encoding a eukaryotic xylose isomerase obtainable from an anaerobic fungus. When expressed, the sequence encoding the xylose isomerase confers to the host cell the ability to convert xylose to xylulose which may be further metabolized by the host cell. Thus, the host cell is capable of growth on xylose as carbon source. The host cell preferably is a eukaryotic microorganism such as a yeast or a filamentous fungus. The invention further relates to processes for the production of fermentation products such as ethanol, in which a host cell of the invention uses xylose for growth and for the production of the fermentation product. The invention further relates to nucleic acid sequences encoding eukaryotic xylose isomerases and xylulose kinases as obtainable from anaerobic fungi.
    Type: Application
    Filed: October 2, 2014
    Publication date: January 29, 2015
    Inventors: Hubertus Johannes Marie OP DEN CAMP, Harry Ramanoedj HARHANGI, Christiaan VAN DER DRIFT, Jacobus Thomas PRONK
  • 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
  • Publication number: 20150017683
    Abstract: Scalable biomaterial-based bioreactors are described. In one embodiment, the bioreactor may comprise perforated plates stacked such that the assembled bioreactor has the necessary manifolds and chambers to transport gas and liquids to a biomaterial contained within the bioreactor, and to remove the reaction products. In another embodiment, single use bioreactors are described. Methods of operating the bioreactors are also described.
    Type: Application
    Filed: December 19, 2012
    Publication date: January 15, 2015
    Inventors: Zia Abdullah, Michael L. Dickens, Micah Paul McCreery, Randy L. Jones, Elvin Ray Beach, III, Jon-David S. Sears, Erin Suzanne Schultz, Stephanie Ann Smith, Paul E. George, II
  • Publication number: 20150010960
    Abstract: An object of the present invention is to provide a soft biomass decomposition method, a production method for a target substance from soft biomass, and an enzyme or group of enzymes for decomposing soft biomass. Provided is a soft biomass decomposition method, including a step of bringing an enzyme selected from specific exocellulase, endocellulase, and processive endocellulase into contact with soft biomass such as bagasse and rice straw. Also provided is a production method for a target substance from soft biomass by incorporating the soft biomass decomposition method as a step. Further provided is an enzyme or group of enzymes for decomposing soft biomass selected from specific exocellulase, endocellulase, and processive endocellulase.
    Type: Application
    Filed: January 29, 2013
    Publication date: January 8, 2015
    Applicant: NATIONAL UNIVERSITY CORPORATION MIE UNIVERSITY
    Inventors: Yutaka Tamaru, Takeshi Katsuyama
  • Publication number: 20150010943
    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: June 24, 2014
    Publication date: January 8, 2015
    Inventors: Aaron Adriaan WINKLER, Sipko Maarten KUYPER, Wilhelmus Theodorus Antonius Maria DE LAAT, Johannes Pieter VAN DIJKEN, Jacobus Thomas PRONK
  • 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: 20150004656
    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 15, 2014
    Publication date: January 1, 2015
    Inventors: Lan Tang, Ye Liu, Junxin Duan, Yu Zhang, Christian Joergensen, Randall Kramer
  • Publication number: 20140377817
    Abstract: The present invention relates to microorganisms and polypeptides for detoxifying aldehydes associated with industrial fermentations. In particular, a heat-stable, NADPH- and iron-dependent alcohol dehydrogenase was cloned from Thermoanaerobacter pseudethanolicus 39E and displayed activity against a number of aldehydes including inhibitory compounds that are produced during the dilute-acid pretreatment process of lignocellulosic biomass before fermentation to biofuels. Methods to use the microorganisms and polypeptides of the invention for improved conversion of bio mass to biofuel are provided as well as use of the enzyme in metabolic engineering strategies for producing longer-chain alcohols from sugars using thermophilic, fermentative microorganisms.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventors: James G. Elkins, Sonya M. Clarkson
  • Publication number: 20140377818
    Abstract: Biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) is processed to produce useful intermediates and products, such as energy, fuels, foods or materials. For example, methods are described that can use feedstock materials, such as cellulosic and/or lignocellulosic materials, to produce an intermediate or product, e.g., by fermentation.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 25, 2014
    Inventors: Marshall Medoff, Thomas Craig Masterman, Seul-a Bae, Kelly Wallick
  • Publication number: 20140377822
    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 into 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 microorganisms that converted the syngas to desired liquid products. The system can sustain production with a variety of microorganisms and membrane configurations.
    Type: Application
    Filed: September 9, 2014
    Publication date: December 25, 2014
    Inventors: Robert Hickey, Rathin Datta, Shih-Perng Tsai, Rahul Basu
  • Publication number: 20140377813
    Abstract: The invention provides a microbial eukaryotic cell capable of utilizing C5 sugars, in particular xylose. Another objective of the invention is to provide an improved protein sequence to enable eukaryotic cells to degrade C5 sugars. The present invention thus provides protein comprising an amino acid sequence having at least 75% identity, preferably 80% identity, most preferably 90% identity, most highly preferably 95% identity to SEQ ID NO. 2 or SEQ ID NO. 8 and having xylose-isomerase activity in a eukaryotic cell.
    Type: Application
    Filed: February 7, 2013
    Publication date: December 25, 2014
    Inventors: Zdravko Dragovic, Christian Gamauf, Christoph Reisinger, Ulrich Kettling
  • Patent number: 8916359
    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: Grant
    Filed: November 30, 2010
    Date of Patent: December 23, 2014
    Assignees: Novozymes A/S, Novozymes North America, Inc.
    Inventors: Sara Landvik, Marc Dominique Morant, Keiichi Ayabe, Guillermo Coward-Kelly
  • Publication number: 20140370559
    Abstract: The invention relates to the microbial fermentation of gaseous substrates to produce one or more products. The invention relates to the microbial fermentation of a gaseous substrate derived from the conversion of a biogas stream. The invention relates to the conversion of a biogas stream comprising methane to a gaseous substrate comprising CO or CO plus H2, and the production of one or more products from the microbial fermentation of said gaseous substrate.
    Type: Application
    Filed: March 14, 2014
    Publication date: December 18, 2014
    Applicant: LanzaTech New Zealand Limited
    Inventors: Simon David Oakley, Joss Anton Coombes, Sean Dennis Simpson, Bjorn Daniel Heijstra, Michael Anthony Schultz, Sean Molloy
  • Publication number: 20140370552
    Abstract: The present invention provides endoglucanase 1b (EG1b) variants suitable for use in saccharification reactions. The present application further provides genetically modified fungal organisms that produce EG1b variants, 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.
    Type: Application
    Filed: December 18, 2012
    Publication date: December 18, 2014
    Inventors: Ee Lui Ang, Ellen D. Eberhard, Xiyun Zhang, Wei Zhang, Jing Tian, Derek J. Smith, Vesna Mitchell
  • Publication number: 20140363861
    Abstract: The technology relates, in certain aspects, to the use of novel extreme thermophile microorganisms, which are able to convert lignocellulosic biomass to carboxylic acids, in particular to lactic acid and/or acetic acid, salts or esters thereof.
    Type: Application
    Filed: September 21, 2012
    Publication date: December 11, 2014
    Inventors: Simon Curvers, Vitaly Svetlichnyi
  • Publication number: 20140356915
    Abstract: Processes are described for fractionating lignocellulosic biomass into cellulose, hemicellulose, and lignin, comprising fractionating lignocellulosic biomass in the presence of a solvent for lignin (such as ethanol), a hydrolysis catalyst (such as sulfur dioxide), and water, to produce a liquor containing hemicellulose, cellulose-rich solids, and lignin; hydrolyzing the hemicellulose to produce hemicellulosic monomers; saccharifying the cellulose-rich solids to produce glucose; recovering the hemicellulosic monomers and the glucose, separately or in a combined stream, as fermentable sugars; and fermenting the fermentable sugars to a fermentation product having a higher normal boiling point than water. Process integration of mass and/or energy is disclosed in many specific embodiments. The fermentation product may include an organic acid, an alcohol, a diol, or combinations thereof.
    Type: Application
    Filed: May 23, 2014
    Publication date: December 4, 2014
    Applicant: API Intellectual Property Holdings, LLC
    Inventors: Theodora RETSINA, Vesa PYLKKANEN, Ryan P. O'CONNOR