Process for the production of xylose by hydrolysis of hemicellulose by
immobilized enzymes
    7.
    发明授权
    Process for the production of xylose by hydrolysis of hemicellulose by immobilized enzymes 失效
    通过固定化酶水解半纤维素来生产木糖的方法

    公开(公告)号:US5932452A

    公开(公告)日:1999-08-03

    申请号:US289803

    申请日:1994-08-12

    摘要: 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.

    摘要翻译: PCT No.PCT / FI90 / 00206 Sec。 371日期:1992年3月27日 102(e)日期1992年3月27日PCT提交1990年9月21日PCT公布。 出版物WO91 / 03566 日期1991年3月21日本发明涉及通过将含有半纤维素寡糖和任选的离子组分的水溶液的pH调节至弱酸性范围内的值来水解具有固定化酶的含有低聚木糖的半纤维素底物的方法, 并将溶液与固定在可再生的弱阳离子交换载体上的半纤维素分解酶或酶的混合物接触而不固定添加剂,并从溶液中回收木糖。 本发明还涉及在该方法中使用的酶制剂,其包含弱阳离子交换载体和半纤维素分解酶或固定在所述载体上的酶的混合物。