Process for the production of xylose by hydrolysis of hemicellulose by
immobilized enzymes
    5.
    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。

    Crystallization of lactitol, crystalline lactitol product and use thereof
    10.
    发明授权
    Crystallization of lactitol, crystalline lactitol product and use thereof 有权
    乳糖醇,结晶乳糖醇产物的结晶及其用途

    公开(公告)号:US06395893B1

    公开(公告)日:2002-05-28

    申请号:US09646411

    申请日:2000-11-09

    IPC分类号: C07H1504

    CPC分类号: C07H15/04

    摘要: The present invention relates to a novel process for the crystallization of lactitol, to a particulate crystalline lactitol product having novel properties, to the use thereof as in foodstuffs, pharmaceuticals and oral hygiene products, as well as to special lactitol sweeteners. The process comprises: contacting a liquid containing dissolved lactitol with gas suspended fine solid particles containing microcrystalline lactitol; causing substantial removal of the solvent component of said liquid and allowing the resulting lactitol material to form an essentially solid composition of matter comprising a multitude of microcrystals of lactitol; and causing said lactitol composition to be conditioned during a further step to provide a product consisting essentially throughtout its entire structure of a multitude of microcrystals of lactitol agglomerated together in a random manner. The invention provides a crystalline lactitol product consisting essentially throughout its entire structure of a multitude of microcrystals of lactitol agglomerated together in a random manner.

    摘要翻译: 本发明涉及一种新型的乳糖醇结晶方法,具有新颖性质的结晶性乳糖醇产品,其在食品,药物和口腔卫生产品中的用途以及特殊的乳糖醇甜味剂。 该方法包括:使含有溶解的乳糖醇的液体与含有微晶乳糖的气体悬浮的细固体颗粒接触; 导致所述液体的溶剂组分的显着去除并且使得到的乳糖醇材料形成基本上固体的组合物,其包含许多乳糖微晶; 并且在进一步的步骤中使所述乳糖醇组合物进行调理以提供基本上通过随机方式聚集在一起的大量乳糖微晶的整个结构的产物。 本发明提供一种结晶乳糖醇产品,其基本上在其整个结构中以随机方式聚集在一起的大量乳糖微晶。