Process for the production of xylose by hydrolysis of hemicellulose by immobilized enzymes
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United States of America Patent
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Aug 3, 1999
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N/A
app pub date -
Aug 12, 1994
filing date -
Sep 6, 1989
priority date (Note) -
Expired
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Abstract
The invention relates to a process for the hydrolysis of a hemicellulose substrate containing xylo-oligomers with an immobilized enzyme by adjusting the pH of an aqueous solution containing hemicellulose oligosaccharides and optionally ionic components to a value within a weakly acidic range, and contacting the solution with a hemicellulolytic enzyme or mixture of enzymes immobilized on a regenerable weak cation exchange carrier without fixing additives, and recovering xylose from the solution. The invention also concerns an enzyme preparation to be used in the process, comprising a weak cation exchange carrier and a hemicellulolytic enzyme or mixture of enzymes immobilized on said carrier.
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