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7285403 |
Xylose-fermenting recombinant yeast strains
Disclosed are xylose-fermenting recombinant yeast strains expressing xylose reductase, xylitol dehydrogenase, and xylulokinase and having reduced expression of PHO13 or a PHO13 ortholog, as well as...
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7273742 |
BGL3 beta-glucosidase and nucleic acids encoding the same
The present invention provides a novel β-glucosidase nucleic acid sequence, designated bgl3, and the corresponding BGL3 amino acid sequence. The invention also provides expression vectors and host...
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7244597 |
Secondary liquefaction in ethanol production
The invention relates to a method of producing ethanol by fermentation, said method comprising a secondary liquefaction step in the presence of a thermostable acid alpha-amylase or, a thermostable...
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7223575 |
Zymomonas pentose-sugar fermenting strains and uses thereof
Disclosed in the present invention is a Zymomonas integrant and derivatives of these integrants that posses the ability to ferment pentose into ethanol. The genetic sequences encoding for the...
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7189306 |
Process of treating lignocellulosic material to produce bio-ethanol
This invention relates to a process of treating a lignocellulosic material to produce bio-ethanol. The process includes the steps of: (a) exposing the lignocellulosic material to conditions...
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7189552 |
Thermostable alpha-amylases
An isolated polynucleotide comprising an open reading frame encoding a polypeptide having alpha-amylase activity, the polypeptide selected from the group consisting of: a) a polypeptide comprising...
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7172894 |
Reductase gene and use of the same
A gene containing a DNA having the nucleotide sequence encoding any one of the amino acid sequences of the following (a) to (e):
(a) an amino acid sequence set out in SEQ ID NO: 1; (b) an...
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7138257 |
Method for producing ethanol by using corn flours
A method for producing ethanol starting from corn flours, which provides for the milling of the corn, the separation of the light fractions (bran), a first refining of the milled fractions, a first...
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7129069 |
Hybrid enzymes
The present invention relates to a hybrid enzyme comprising at least one carbohydrate-binding module amino acid sequence and at least the catalytic module of a glucoamylase amino acid sequence. The...
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7109005 |
Process for the simultaneous production of xylitol and ethanol
Effective processes are provided for the production of xylitol and ethanol and other products from solutions derived from lignocellulose-containing material in biomass. The solutions can be...
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7101691 |
Alcohol production using sonication
A method comprising applying sonication to a grain-based liquid medium processing stream of a starch-to-alcohol production process with one or more transducers is provided. In one embodiment, the...
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7102057 |
Self-processing plants and plant parts
The invention provides polynucleotides, preferably synthetic polynucleotides, which encode processing enzymes that are optimized for expression in plants. The polynucleotides encode mesophilic,...
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7091014 |
Transformed microorganisms with improved properties
The present invention relates to genetic engineering of production microorganisms used in biotechnology to improve their properties so that they produce useful products more efficiently. The...
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7083954 |
Method of producing fermentation-based products from corn
Corn oil and corn meal obtained from corn are included in useful products. A method for producing fermentation-based products comprises combining corn meal with water and an enzyme, and mixing the...
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7078201 |
Ethanol fermentation using oxidation reduction potential
A process to improve ethanol yield, decrease fermentation time and reduce byproduct formation by monitoring and controlling oxidation reduction potential (redox) of the fermentor is disclosed.
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7074603 |
Process for producing ethanol from corn dry milling
A process for producing ethanol by the conversion of carbohydrates from a corn dry milling process in which the bottoms fraction from distillation of ethanol in a conventional yeast fermentation is...
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7070967 |
High speed, consecutive batch or continuous, low effluent process for the production of ethanol from molasses, starches, or sugars
A flocculent Saccharomyces cerevisae strain (BPSC-15) produces higher yields of ethanol in fermentations of fermentable sugar or fermentable starch/enzyme.
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7018829 |
Metabolically engineered microbial cell with an altered metabolite production
A recombinant microbial cell comprises at least one increased expressible enzyme activity controlling anabolic metabolism of ammonia as a nutrient source, the increased enzyme activity being an...
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6924132 |
Protein complementing yeast low temperature-sensitivity fermentability
The present invention relates to yeast having DNA encoding a protein having the amino acid sequence of SEQ ID NO:2, or a gene which comprises DNA having the nucleotide sequence of SEQ ID NO: 1.
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6908995 |
Production of carbohydrates, alcohol and resins from biomass
Ethanol is produced from biomass by the process of a heated aqueous solution containing 20 to 40 percent alkali metal hydroxide to break the lignin-cellulose bond. Then the biomass is heated...
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6849434 |
Ethanol production in recombinant hosts
The subject invention concerns the transformation of Gram-positive bacteria with heterologous genes which confer upon these microbes the ability to produce ethanol as a fermentation product....
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6846657 |
Process for the simultaneous production of xylitol and ethanol
The invention relates to a process for the simultaneous production of xylitol and ethanol from a hydrolyzed lignocellulose-containing material starting. The starting material is fermented with a...
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6740508 |
Fermentation-based products from corn and method
Corn oil and corn meal obtained from corn are included in useful products. A method for producing fermentation-based products comprises combining corn meal with water and an enzyme, and mixing the...
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6737257 |
Hyperthermophilic enzymes for industrial chemical redox reactions: a method for biofuel ethanol production
The present invention is directed to use of hyperthermophilic enzymes for industrial chemical redox reactions such as ethanol production. The present invention is especially useful for the coupled...
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6737258 |
Process for the conversion of and aqueous biomass hydrolyzate into fuels or chemicals by the selective removal of fermentation inhibitors
A process of making a fuel or chemical from a biomass hydrolyzate is provided which comprises the steps of providing a biomass hydrolyzate, adjusting the pH of the hydrolyzate, contacting a metal...
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6699696 |
Genetically modified cyanobacteria for the production of ethanol, the constructs and method thereof
The invention provides a genetically modified Cyanobacteria having a construct comprising DNA fragments encoding pyruvate decarboxylase (pdc) and alcohol dehydrogenase (adh) enzymes obtained from...
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6664076 |
Modification of bacteria
Sporulation-deficient variants of thermophilic, facultatively anaerobic, Gram-positive bacteria can be generated using a plasmid transformation system based on a novel method of in vivo...
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6582944 |
Production of ethanol from xylose
This invention relates to recombinant-DNA-technology. Specifically this invention relates to new recombinant yeast strains transformed with xylose reductase and/or xylitol dehydrogenase enzyme...
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6569653 |
Method for producing ethanol with frequent input of yeast
In this process for producing ethanol by enzymatic treatment of a must of a starchy plant material with yeasts of the genus Saccharomyces, all the old yeasts are replaced with fresh yeasts in order...
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6566107 |
Recombinant Zymomonas mobilis with improved xylose utilization
A strain derived from Zymomonas mobilis ATCC31821 or its derivative capable of producing ethanol upon fermentation of a carbohydrate medium containing xylose to provide enhanced xylose...
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6555350 |
Method for processing lignocellulosic material
A method wherein lignocellulosic biomass materials are converted into combustible fuel products. In particular, the method is a continuous process, involving wet oxidation or steam explosion, for...
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6518050 |
Process for producing and extracting aromatic compounds
The invention relates to a means for enhancing the value of distillation residues of fermentation products and in particular, a process for producing compounds of economic interest from these...
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6475768 |
Xylose isomerase with improved properties
The present invention relates to novel nucleic acid sequences which, upon expression in a procaryotic or eucaryotic cell, code for a polypeptide having an elevated specific xylose isomerase...
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6419828 |
Method for the separation of acid from sugars
A method for separating acid and sugars obtained from liquids resulting from the acid hydrolysis of a material containing at least one of cellulose and hemicellulose is disclosed, comprising adding...
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6420146 |
Process for the preparation of stable yeast crystals for enhanced production of ethanol
The invention provides a process for the preparation of stable yeast crystals for enhanced production of ethanol, said process comprising the steps of culturing yeast Sacchromyces spp. in a growth...
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6395521 |
Microbial process for producing hydrogen
In hydrogen production with microorganisms, cultivation of a microalga under light and aerobic conditions and/or hydrogen production by a photosynthetic bacterium under light and anaerobic...
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6391599 |
Sham-sensitive terminal oxidase gene from xylose-fermenting yeast
Disclosed is a SHAM-sensitive terminal oxidase (STO) gene from the xylose-fermenting yeast Pichia stipitis . Also disclosed is a mutant of Pichia stipitis in which the STO gene natively present...
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6358717 |
Method of producing butanol using a mutant strain of Clostridium beijerinckii
The present invention relates to a method of producing high levels of butanol using a fermentation process that employs a mutant strain of Clostridium beijerinckii.
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6355456 |
Process of using wet grain residue from ethanol production to feed livestock for methane production
An integrated continuous process for the production of ethanol and a bio-gas containing methane is disclosed. The process comprises the following steps. First, grain is fermented in an aqueous...
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6335177 |
Microorganisms and method for producing xylitol or d-xylulose
According to the present invention, there are provided microorganisms having an ability to producing xylitol or D-xylulose by fermentation, and a method for producing xylitol or D-xylulose using...
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6280986 |
Stabilization of pet operon plasmids and ethanol production in bacterial strains lacking lactate dehydrogenase and pyruvate formate lyase activities
Recombinant bacteria are disclosed which are transformed with heterologous DNA coding for alcohol dehydrogenase (adh) and pyruvate decarboxylase (pdc), and which are effective for use in the...
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6231765 |
Process for making polymeric complex from residual or by-product effluents from distilleries
A process for obtaining a polymeric complex from a by-product effluent obtained in a process for manufacturing alcohol by distilling a fermented aqueous sugar solution containing yeast. After...
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6136577 |
Biological production of ethanol from waste gases with Clostridium ljungdahlii
A method and apparatus for converting waste gases from industrial processes such as oil refining, carbon black, coke, ammonia, and methanol production, into useful products is disclosed. The method...
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6130076 |
Ethanol production using a soy hydrolysate-based medium or a yeast autolysate-based medium
This invention presents a method for the production of ethanol that utilizes a soy hydrolysate-based nutrient medium or a yeast autolysate-based medium nutrient medium in conjunction with...
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6090595 |
Pretreatment process for conversion of cellulose to fuel ethanol
An improved pretreatment of cellulosic feedstocks, to enable economical ethanol production by enzyme treatment. The improved pretreatment comprises choosing either a feedstock with a ratio of...
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6083998 |
Defoamer and methods of use thereof
Disclosed are methods and compositions for defoaming alcoholic fermentations. An aqueous composition of polydimethylsiloxane, an ethylene oxide/propylene oxide block copolymer and a silicone/silica...
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6071729 |
Disruption of the cytochrome C gene in xylose-fermenting yeast
Disclosed is a xylose-fermenting mutant yeast strain exhibiting reduced expression of cytochrome c and enhanced fermentation of xylose relative to xylose-fermenting yeast strains in which...
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6054302 |
High solids, single phase process for preparing enzyme-converted starches
A high solids, enzyme conversion process for preparing an enzyme-converted starch is carried out by adding to a modified or unmodified starch, preferably a granular starch, water and an enzyme in...
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6045660 |
Mechanically assisted two-phase contactor and fuel ethanol production system
Apparatus for use in the rectification of liquid mixtures (separation of liquid mixtures into their constituents) and other processes requiring equilibration of liquid and gaseous phases in which...
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6015699 |
Process for the production of alcohol
The subject invention relates to an improved process for the production of alcohol which obviates the drawbacks and limitations of the hitherto known process, comprises growing a yeast in a...
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