Abstract: The present invention relates to a transformed strain having ethanol production potential, constructed by introducing a foreign gene for ethanol production into a non-ethanol producing acetogen Eubacterium limosum and a method for producing ethanol, using the strain. According to the present invention, Eubacterium limosum which is a conventional acetogen lacking ethanol production potential is used to produce ethanol, which is a high value-added product, as a single product from carbon monoxide contained in waste gas.

Abstract: A transformant obtained by introducing a DNA of (a1), (a2), or (a3) below, and (b) an alcohol dehydrogenase gene, into a bacterium of the genus Hydrogenophilus, can efficiently produce isobutanol utilizing carbon dioxide as a sole carbon source. (a1) DNA which consists of a base sequence of SEQ ID NO: 1; (a2) DNA which consists of a base sequence having 90% or more identity with SEQ ID NO: 1, the DNA encoding a polypeptide having 2-keto-acid decarboxylase activity; (a3) DNA which hybridizes with a DNA consisting of a base sequence complementary to SEQ ID NO: 1 under stringent conditions, and which encodes a polypeptide having 2-keto-acid decarboxylase activity.

Abstract: Disclosed are methods for the pre-treatment of lignocellulose by adding an alkali or acid reagent(s) during the densification thereof, and for the biotransformation thereof. In the method, an alkali reagent(s) or acid reagent(s) is added to a lignocellulosic raw material for a densification pre-treatment to form an alkali- or acid-containing densified lignocellulose with a compressed compact shape, thereby achieving the pre-treatment. The acid or alkali in the pre-treated lignocellulose can further pre-treat the lignocellulosic raw material in a mild manner during the subsequent transportation and storage processes. If a subsequent pre-treatment is needed, then the severity thereof is reduced substantially; in addition, the uniform mixing of the acid or alkali with the lignocellulose and a large density of the raw material promote a high efficiency and a high loading capacity of the subsequent pre-treatment of the densified lignocellulose. The method is simple and efficient.

Abstract: The invention relates to recombinant microorganisms and methods for producing macrocyclic ketones and macrocyclic ketone precursors.

Abstract: Provided is a method of producing a product by culturing a carboxydotrophic acetogenic bacterium with a disrupting mutation in a lactate dehydrogenase enzyme in the presence of a substrate comprising CO, CO2, and/or H2. Preferably, the disrupting mutation reduces or eliminates the expression or activity of the enzyme such that the bacterium produces a reduced amount of lactate or no lactate.

Abstract: Genetically modified microorganisms that have the ability to convert carbon substrates into multicarbon products. Methods of making these genetically modified microorganisms and methods of using them. Vectors encoding enzymes for use in converting carbon substrates into multicarbon products.

Abstract: This invention relates to metabolically engineered microorganism strains, such as bacterial strains, in which there is an increased utilization of malonyl-CoA for production of a fatty acid or fatty acid derived product, wherein the modified microorganism produces fatty acyl-CoA intermediates via a malonyl-CoA dependent but malonyl-ACP independent mechanism.

Abstract: A host cell includes an inactivated gene. The inactivated gene may be a gene including the nucleotide sequence of SEQ ID NO: 34, a gene including a nucleotide sequence of a nucleic acid hybridizing under a stringent condition to a nucleic acid consisting of a nucleotide sequence complementary to the nucleotide sequence of SEQ ID NO: 34, a gene comprising a nucleotide sequence having a sequence identity of 85% or more to the nucleotide sequence of SEQ ID NO: 34, or a gene encoding an amino acid sequence having a sequence identity of 85% or more to the amino acid sequence of SEQ ID NO: 33.

Abstract: Disclosed are methods and systems for recovering oil from processed plant materials and by-products formed during a milling process used for producing ethanol.

Abstract: This disclosure describes methods that allow for the uncoupling of microbial growth from product formation, which allows for maximal use of raw material and optimal end-product formation.

Abstract: The present specification relates to a transformed yeast strain capable of simultaneously utilizing xylose and glucose as carbon sources, a preparation method thereof and a biofuel production method using the same. The transformed yeast strain transforms a wild-type yeast strain incapable of using xylose as a carbon source and simultaneously convert glucose and xylose, thereby enabling high yield production of a biofuel. The economics and sustainability of the biofuel and biomaterial production processes can be highly enhanced by providing a strain which can easily be converted to a strain capable of producing a biofuel/material in a high yield through an additional modification.

Abstract: The present invention provides compact spiral-wound filter elements having cassette-like performance. The invention further provides filtration systems (e.g., TFF systems) and processes (e.g., SPTFF processes) employing compact spiral-wound filter elements having cassette-like performance.

Abstract: Methods described herein, in some embodiments, permit extraction of particle structural and/or surface charge data from gradient induced particle motion in channels. In one aspect, a method of manipulating particle motion comprises introducing a fluid into a channel, the fluid comprising particles, and driving particle accumulation to a preselected location in the channel by setting advective velocity of the fluid to offset diffusiophoretic mobility of the particles at the preselected location.

Abstract: A substance P analog having a progenitor cell or stem cell recruiting activity and a method of recruiting progenitor cells or stem cells using the substance P analog are disclosed. The substance P analog has an effect of recruiting endogenous progenitor cells or stem cells to a wound or disease-occurring site. Thus, the disclosure also describes its use in recruiting progenitor cells or stem cells and a method of regenerating or treating a damaged organ or tissue, or a method of healing a wound.

Abstract: A system for continuous ethanol recovery in an ethanol plant includes a prefermenter receiving high solids corn slurry mash from the ethanol plant. A yeast source injects live yeast cells into the prefermenter, which converts sugar in the mash to ethanol and provides beer with a concentration of the ethanol as output. A prefermenter stripper is configured for receiving an outflow airstream and stripping ethanol and water from down-flowing beer. A yeast source injects live yeast cells from the ethanol plant into the prefermenter. The prefermenter converts sugar in the mash to ethanol and provides beer with a concentration of the ethanol as prefermenter output. The prefermenter stripper receives an upflowing airstream and strips ethanol and water from downflowing beer and leaves the top of the prefermenter stripper with ethanol-laden exhaust. A beer recirculation cooler cools the stripped beer using cooling tower water from the existing plant as a heat sink.

Abstract: At least one isolated microorganism, which converts at least 10% by weight, and preferably 50% by weight, of cellulosic biomass to a lower alkyl alcohol by direct digestion, and which produces at least 4% by volume of the lower alkyl alcohol in an aqueous-based digestion medium.

Abstract: In ethyl alcohol production using the self-fermentation of a microalga, a step of concentrating or collecting an algal body by centrifugal treatment, filtering treatment or the like is made unnecessary or simple to save labor for effort and equipment therefor is saved. The microalga belongs to Chlamydomonas sp., and is a variant strain which has an ability to produce ethyl alcohol under dark and anaerobic conditions and has acquired an ability to proliferate while aggregating. The microalga is proliferated and maintained under dark and anaerobic conditions to generate ethyl alcohol in this method for producing ethyl alcohol.

Abstract: The methods are disclosed for sustaining a population of microorganisms in an aqueous fermentation broth used in a process to convert syngas to alcohol when the supply of syngas is impaired. The methods involve supplying at least one formate moiety at a rate and amount sufficient to maintain the population of microorganisms. The introduction of the formate moiety also results in the production of at least one metabolic compound other than ethanol and/or acetate by the microorganisms. The metabolic compound can comprise at least one energy storage compound which can be used to support the microorganisms during processing, storage and reactivation.

Abstract: The invention relates to engineering of acetyl-CoA metabolism in yeast and in particular to production of acetyl-CoA in a non-ethanol producing yeast lacking endogenous gene(s) encoding pyruvate decarboxylase and comprising a heterologous pathway for synthesis of cytosolic acetyl-CoA.

Abstract: The present invention relates to methods of upgrading biomass to provide useful chemical intermediates, fuels, amino acids, nutrients, etc. In particular examples, the biomass is a by-product of ethanol production and is mainly used as high-protein feed. Described herein are methods for upgrading such biomass, such as by implementing pre-treatment conditions and by employing fermentation conditions including modified organisms.

Abstract: Methods and systems for the production of alcohols are described. A two stage process is utilized, where fermentation in a first stage produces an intermediate product, such as an amino acid or organic acid, from a carbon containing feedstock. A second stage produces alcohol by fermentation of this intermediate product.

Abstract: An efficient, rapid ex-situ detoxification has been developed to reduce inhibitor concentration and enhance acetone-butanol-ethanol (ABE) production from brewery industry liquid waste (BLW) and brewery spent grain (BSG). About 80±2.0% extraction of furan derivative and more than 95±2.0% extraction of phenolic compounds and almost no extraction of reducing sugar from simulated synthetic media as well as real waste hydrolysate have been obtained. Ex-situ extraction of microbial inhibitors from BLW and BSG hydrolysates using bis-(2-ethylhexyl) sebacate as solvent leads to high production of ABE of 12.67 g/L and 11.23 g/L respectively. Lower power consumption (0.081 W/L) and reuse of the extracting solvent made this detoxification technique extremely useful for improving production of bio-butanol from agro-industrial waste.

Abstract: Disclosed are methods and systems for recovering oil from processed plant materials and by-products formed during a milling process used for producing ethanol.

Abstract: An integrated process for the production of propene from a mixture of alcohols obtained by IBE (Isopropanol-Butanol-Ethanol) fermentation from at least one renewable source of carbon is disclosed. The process is characterized by dehydration of the alcohols in order to generate ethene, propene and linear butenes, respectively. The olefin mixture is then directed to an isomerization bed in order to generate 2-butene from 1-butene, followed by a metathesis bed to react ethene and 2-butenes to generate additional propene. This process exhibits a yield in carbon moles higher than 90% propene with respect to the alcohols produced in the fermentation step.

Abstract: Provided herein are processes for producing an improved culture of cells comprising an engineered butanol biosynthetic pathway. The processes comprise (a) providing a cell culture of recombinant microorganisms comprising an engineered butanol biosynthetic pathway, wherein the engineered butanol biosynthetic pathway is minimal or not activated; and (b) growing the culture of recombinant microorganisms under adaptive conditions whereby pathway activation is increased to produce an improved cell culture and whereby the improved cell culture is capable of continuing to grow in fermentation.

Abstract: Modification of the amino acid sequence of a phenylpyruvate decarboxylase from Azospirillum brasilense produces a novel group of phenylpyruvate decarboxylases with improved specificity to certain substrates, including in particular C7-C11 2-ketoacids such as, for example, 2-ketononanoate and 2-keto-octanoate. This specificity enables effective use of the phenylpyruvate decarboxylase in, for example, an in vivo process wherein 2-ketobutyrate or 2-ketoisovalerate are converted to C7-C11 2-ketoacids, and the novel phenylpyruvate decarboxylase converts the C7-C11 2-ketoacid to a C6-C10 aldehyde having one less carbon than the 2-ketoacid. Ultimately, through contact with additional enzymes, such C6-C10 aldehydes may be converted to, for example, C6-C10 alcohols, C6-C10 carboxylic acids, C6-C10 alkanes, and other derivatives. Use of the novel genetically modified phenylpyruvate decarboxylases may represent a lower cost alternative to non-biobased approaches.

Abstract: The present invention pertains among others to a method of preparing a biomass mash from a biomass comprising lignin. The invention also pertains to a biomass mash comprising reduced viscosity.

Abstract: The present disclosure is directed to genetically engineered bacteria strains with enhanced biofuel-producing capabilities from cellulosic substrates. The bacteria strains of the present disclosure comprise an inactivated Type I glutamine synthetase gene. The present disclosure is also directed to methods of producing biofuels from cellulosic biomass using the genetically engineered bacteria strains.

Abstract: Polypeptides having ketol-acid reductoisomerase activity are provided. Also disclosed are recombinant host cells comprising isobutanol biosynthetic pathways employing such polypeptides. Methods for producing isobutanol employing host cells comprising the polypeptides having ketol-acid reductoisomerase activity are also disclosed.

Abstract: Recombinant microorganisms are disclosed that produce steviol glycosides and have altered expression of one or more endogenous transporter or transcription factor genes, or that overexpress one or more heterologous transporters, leading to increased excretion of steviol glycosides of interest.

Abstract: The present invention relates to a recombinant strain for producing 2,3-butanediol, comprising (a) an inactivated lactate dehydrogenase and (b) an inactivated sucrose regulator. According to the present invention, it is possible to economically produce 2,3-butanediol using a cheap carbon source, and the efficiency and productivity of 2,3-butanediol is remarkable compared with a wild type.

Abstract: The present invention provides for novel metabolic pathways leading to propanol, alcohol or polyol formation in a consolidated bioprocessing system (CBP), where lignocellulosic biomass is efficiently converted to such products. More specifically, the invention provides for a recombinant microorganism, where the microorganism expresses one or more native and/or heterologous enzymes; where the one or more enzymes function in one or more engineered metabolic pathways to achieve: (1) conversion of a carbohydrate source to 1,2-propanediol, isopropropanol, ethanol and/or glycerol; (2) conversion of a carbohydrate source to n-propanol and isopropanol; (3) conversion of a carbohydrate source to isopropanol and methanol; or (4) conversion of a carbohydrate source to propanediol and acetone; wherein the one or more native and/or heterologous enzymes is activated, upregulated or downregulated.

Abstract: The present invention relates to a recombinant microorganism with improved butanol production ability which has an acetyl-CoA synthesis pathway and a butyryl-CoA synthesis pathway, wherein a pathway converting acetyl-CoA to acetate is inhibited and a pathway converting acetyl-CoA to butyryl-CoA is promoted. In addition, the present invention relates to a method for producing butanol using the recombinant microorganism.

Abstract: Methods of producing ethylene oxide and ethylene glycol are disclosed herein. Ethylene produced by cyanobacteria engineered to express ethylene-forming enzymes may be converted to ethylene oxide by bacteria engineered to express a monooxygenase enzyme. Ethylene oxide may be converted to ethylene glycol by exposure to an acidic solution. The methods may be performed in a bioreactor.

Abstract: The present invention provides a means for producing butanol in butanol fermentation with high efficiency. The present invention relates to a genetically modified microorganism of Clostridium saccharoperbutylacetonicum, and a method for producing butanol using the microorganism.

Abstract: This invention relates, e.g., to an inhibitory peptide or CPP inhibitor which specifically binds to p53 having an aberrant conformation (e.g., is aggregated or misfolded) and inhibits p53 amyloidogenic aggregation or restores proper folding of the misfolded protein. Methods of using the inhibitory peptide or CPP inhibitor (e.g. to treat subjects having tumors that comprise aggregated p53) are described.

Abstract: Provided are methods, systems and apparatuses to the energy efficient and selective extraction of biomolecules, e.g., small organic compounds, e.g., one or more C3-C9 alcohols, one or more C3-C5 carboxylic acids, and mixtures thereof, from an aqueous solution, particularly aqueous solutions containing the alcohol in dilute or low concentrations, for example, fermentation broths.

Abstract: The invention relates to the fields of bacterial metabolism and the utilization or consumption of short-chain carboxylic acids to reduced products. Specifically, it relates to syngas fermentations using monocultures of syngas-utilizing homoacetogenic bacteria for the production of alcohols using native alcohol dehydrogenase.

Abstract: The present invention relates to the development of genetically engineered yeasts that can produce hydrocarbons in a controllable and economic fashion. More specifically the invention relates to the production of liquid alkanes and alkenes that can be used for liquid transportation fuels, specialty chemicals, or feed stock for further chemical conversion.

Abstract: The present invention relates to a method for producing C4 bodies, preferably butyric acid and/or butanol, comprising the steps contacting an aqueous medium comprising an acetogenic bacterial cell in an aqueous medium with syngas and incubating the mixture obtained in step a) at a temperature between 0 and 100° C. for at least 30 minutes, wherein the aqueous medium comprises, in step b), ethanol and/or acetate at a total combined concentration is at least 0.1 gL?1.

Abstract: A method for producing H2, methane, VFAs and alcohols from organic material, including the steps of introducing organic material and microorganisms into a completely mixed bioreactor for producing H2, CO2, VFAs, and alcohols; recovering H2 and CO2; recovering a first liquid effluent including microorganisms, VFAs, and alcohols; introducing the first liquid effluent into a gravity settler for separating into a first biomass including microorganisms and a second liquid effluent including VFAs, alcohols and microorganisms; introducing the second liquid effluent into a separation module for separating into a second biomass including microorganisms and a third liquid effluent including VFAs and alcohols; recovering at least a portion of the third liquid effluent; and providing a recovered biomass by recovering at least a portion of the first biomass, the second biomass, or both, and introducing the recovered biomass into a biomethanator for production of CH4 and CO2.

Abstract: This invention relates to cells and methods for producing lipids using cellulosic carbon source. More specifically the invention relates to oleaginous bacterial cells, wherein genes encoding at least one cellulolytic activity has been introduced. This invention also relates to methods for lipid production by cultivating an oleaginous bacterial strain or strains capable of expressing one or more cellulolytic activity.

Abstract: The invention relates to the fields of industrial microbiology and alcohol production. More specifically, the invention relates to improved production of butanol isomers by recombinant microorganisms containing an engineered butanol pathway and disrupted activity of the genes in pathways for the production of by-products during the fermentation when the microorganisms are grown in a fermentation medium containing acetate. In embodiments, recombinant microorganisms have an increased growth rate in a fermentation medium containing acetate as a C2 supplement.

Abstract: Provided herein are processes for producing an improved culture of cells comprising an engineered butanol biosynthetic pathway. The processes comprise (a) providing a cell culture of recombinant microorganisms comprising an engineered butanol biosynthetic pathway, wherein the engineered butanol biosynthetic pathway is minimal or not activated; and (b) growing the culture of recombinant microorganisms under adaptive conditions whereby pathway activation is increased to produce an improved cell culture and whereby the improved cell culture is capable of continuing to grow in fermentation.

Abstract: Dihydroxy-acid dehydratase (DHAD) variants that display increased DHAD activity are disclosed. Such enzymes can result in increased production of compounds from DHAD requiring biosynthetic pathways. Also disclosed are isolated nucleic acids encoding the DHAD variants, recombinant host cells comprising the isolated nucleic acid molecules, and methods of producing butanol.

Abstract: Microbial strains are provided, as are methods of making and using such microbial strains.

Abstract: The present application provides a method for producing organic acid, such as acetic acid, propionic acid, butyric acid, or another high-quality raw material designed for methane fermentation and obtained by converting waste paper and other forms of cellulose-based biomass to organic acid, wherein said method comprising a step for reacting rumen fluid collected from a ruminant animal with cellulose-containing waste matter. This method provides the effective use of cellulose-containing waste matter, which is a high-quality fermentation resource.

Abstract: The present invention relates to a microorganism having an acetyl CoA biosynthesis pathway and a butyryl CoA biosynthesis pathway; the microorganism being a recombinant microorganism having an increased ability to produce butanol, wherein a pathway for converting acetyl CoA into acetate is suppressed, and a pathway for converting acetate into acetyl CoA and a pathway for converting butyryl CoA into butanol are promoted. Also, the present invention concerns a method for producing butanol by using the recombinant microorganism.

Abstract: The invention relates to a method for producing butanol through microbial fermentation, in which the butanol product is removed by extraction into a water immiscible organic extractant during the fermentation. The invention also relates to a method for producing butanol through microbial fermentation, in which the butanol product is removed during the fermentation by extraction into a water-immiscible extractant composition. The invention further relates to compositions comprising a solution of butanol in a water immiscible organic extractant composition.

Abstract: Polypeptides having ketol-acid reductoisomerase activity are provided. Also disclosed are recombinant host cells comprising isobutanol biosynthetic pathways employing such polypeptides. Methods for producing isobutanol employing host cells comprising the polypeptides having ketol-acid reductoisomerase activity are also disclosed.