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Method of Processing Lignocellulosic Feedstock for Enhanced Xylose and Ethanol Production
Method of Processing Lignocellulosic Feedstock for Enhanced Xylose and Ethanol Production
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机译:加工木质纤维素原料以提高木糖和乙醇产量的方法
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摘要
The present invention provides a method of producing xylose from lignocellulosic feedstock. The method comprises disrupting lignocellulosic feedstock; leaching the lignocellulosic feedstock by contacting the feedstock with at least one aqueous solution for a period greater than about 2 minutes to produce a leached feedstock and a leachate; removing the leachate from the leached feedstock; acidifying the leached feedstock to a pH between about 0.5 and about 3 to produce an acidified feedstock; and, reacting the acidified feedstock under conditions which disrupt fiber structure and hydrolyze a portion of hemicelluloses and cellulose of the acidified feedstock, to produce a composition comprising xylose and a pretreated feedstock. The xylose may be purified from the pretreated feedstock or it may be converted to ethanol with the pretreated feedstock.
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