PRODUCTION OF ETHANOL FROM LIGNOCELLULOSIC BIOMASS
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United States of America Patent
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app pub date -
Dec 18, 2009
filing date -
Dec 22, 2008
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Abstract
Described herein are methods for converting lignocellulosic biomass to ethanol, comprising the step of contacting the lignocellulosic biomass with a mixture for a period of time at an initial temperature and an initial pH, wherein the mixture comprises a first microorganism and a second microorganism, thereby producing an amount of ethanol. The first microorganism or the second microorganism may be a thermophilic or mesophilic microorganism. The first microorganism may be a native cellulolytic microorganism or a native xylanolytic microorganism; and the second microorganism may be a genetically engineered xylanolytic microorganism or a genetically engineered cellulolytic microorganism. The microorganisms may be Clostridium thermocellum or Thermoanaerobacterium saccharolyticum, or any number of a wide variety of others.
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