METHODS AND COMPOSITIONS FOR ENHANCED PRODUCTION OF ORGANIC SUBSTANCES FROM FERMENTING MICROORGANISMS
First Claim
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1. A method of producing an organic substance by simultaneous saccharification and fermentation comprising:
- (a) combining, in the absence of a supplemental nitrogen source, a cellulosic substrate, a whole fermentation broth and a fermenting microorganism; and
(b) incubating the cellulosic substrate, whole fermentation broth and fermenting microorganism under conditions conducive both to hydrolysis of cellulose to glucose and/or xylose and to conversion of glucose and/or xylose to organic substance.
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Abstract
The present invention relates methods and compositions for producing an organic substance from fermenting microorganism using simultaneous saccharification and fermentation. One aspect of the invention provides producing alcohol by simultaneous saccharification and fermentation by combining a cellulosic substrate, and whole fermentation broth, and an ethanologenic microorganism under conditions conducive both to hydrolysis of cellulose to glucose and to conversion of glucose to alcohol.
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14 Claims
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1. A method of producing an organic substance by simultaneous saccharification and fermentation comprising:
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(a) combining, in the absence of a supplemental nitrogen source, a cellulosic substrate, a whole fermentation broth and a fermenting microorganism; and (b) incubating the cellulosic substrate, whole fermentation broth and fermenting microorganism under conditions conducive both to hydrolysis of cellulose to glucose and/or xylose and to conversion of glucose and/or xylose to organic substance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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- 9. A reactive composition for production of an organic substance comprising a mixture of a cellulosic substrate, whole fermentation broth and fermenting microorganism, wherein the reactive composition is substantially free of supplemental nitrogen source.
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