Process for the production of xylose by hydrolysis of hemicellulose by
immobilized enzymes
    2.
    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。

    Chromatographic separation column, inner structures thereof, and
chromatographic separation
    3.
    发明授权
    Chromatographic separation column, inner structures thereof, and chromatographic separation 失效
    色谱分离柱,其内部结构和色谱分离

    公开(公告)号:US5770061A

    公开(公告)日:1998-06-23

    申请号:US909516

    申请日:1997-08-12

    摘要: The invention relates to a chromatographic separation column whose filling material space comprises in the vertical direction at least two zones between which no means that would hinder vertical flow exist and which are divided by means of substantially vertical walls into separate sections. These zones are so dimensioned that the upper edge of the walls in the uppermost zone is below the upper surface of the column filling material in the operating conditions of the column. The invention further relates to inner structures for such a column and to a chromatographic method for separating dissolved constituents by means of said separation column. In this method, a solution is fed alternately with an eluent uniformly across the upper surface of the filling material in the separation column, the solution is allowed to flow through the filling material bed, and the fractions containing the desired products are collected from the liquid flow passed through the filling material.

    摘要翻译: 本发明涉及一种色谱分离柱,其填充材料空间在垂直方向上包括至少两个区域,其间不存在阻碍垂直流动的装置,并且通过基本上垂直的壁将其分隔成单独的部分。 这些区域的尺寸使得在柱的操作条件下,最上部区域中的壁的上边缘在柱填充材料的上表面下方。 本发明还涉及这种塔的内部结构以及通过所述分离柱分离溶解成分的色谱法。 在该方法中,将溶液与洗脱液交替地与分离塔中的填充材料的上表面均匀地进料,使溶液流过填充材料床,并将含有所需产物的馏分从液体中收集 流动通过填充材料。

    Method for fractionating sulphite cooking liquor
    4.
    发明授权
    Method for fractionating sulphite cooking liquor 失效
    分馏亚硫酸盐蒸煮液的方法

    公开(公告)号:US5637225A

    公开(公告)日:1997-06-10

    申请号:US545855

    申请日:1996-01-16

    摘要: The invention relates to a method for the fractionation of sulphite cooking liquor by a chromatographic simulated moving bed system in which the liquid flow is effected in a system comprising at least two chromatographic sectional packing material beds. In this method, at least one fraction enriched with monosaccharides and one fraction enriched with lignosulfonates are recovered during a multi-step sequence comprising the following phases: feeding phase of sulphite cooking liquor, eluting phase and recycling phase. The liquid present in the sectional packing material beds with its dry solids profile is recycled in the recycling phase in one or more loops comprising one or more sectional packing material beds.

    摘要翻译: PCT No.PCT / FI94 / 00179 Sec。 371日期1996年1月16日 102(e)日期1996年1月16日PCT 1994年5月9日PCT公布。 出版物WO94 / 26380 日期1994年11月24日本发明涉及一种通过色谱模拟移动床系统分馏亚硫酸盐蒸煮液的方法,其中液体流在包含至少两个色谱分段包装材料床的系统中进行。 在该方法中,在包括以下阶段的多步骤序列期间回收富含单糖和富含木素磺酸盐的一个馏分的至少一个馏分:亚硫酸盐蒸煮液的进料阶段,洗脱阶段和回收阶段。 存在于具有干燥固体轮廓的分段填料材料床中的液体在回收阶段中被循环,在一个或多个包括一个或多个分段填充材料床的回路中。

    Method for fractionating a solution
    5.
    发明授权
    Method for fractionating a solution 失效
    分离溶液的方法

    公开(公告)号:US5730877A

    公开(公告)日:1998-03-24

    申请号:US722074

    申请日:1996-10-18

    摘要: The invention relates to a method for fractionating a solution by a chromatographic simulated moving bed method in which the liquid flow is effected in a system comprising at least two sectional beds in different ionic forms. The fractions enriched with different components are recovered during a multi-step sequence including the following operations, i.e., phases: feeding phase, eluting phase, and recycling phase. The liquid present in the sectional packing material beds with its dry solids concentration profile is recycled during the recycling phase in a loop comprising one, two, or more sectional packing material beds. The method can be employed for the following examples, fractionating sulphite cooking liquor, molasses, and vinasse.

    摘要翻译: PCT No.PCT / FI95 / 00224 Sec。 371日期:1996年10月18日 102(e)日期1996年10月18日PCT提交1995年4月19日PCT公布。 公开号WO95 / 29002 日期1995年11月2日本发明涉及一种通过色谱模拟移动床法分级溶液的方法,其中液体流在包括不同离子形式的至少两个分段床的系统中进行。 在多步序列序列中回收富集不同组分的馏分,包括以下操作,即相:进料相,洗脱相和回收阶段。 存在于具有干燥固体浓度分布的分段包装材料床中的液体在循环阶段期间循环在包括一个,两个或更多个分段包装材料床的回路中。 该方法可用于以下实施例,分馏亚硫酸盐蒸煮液,糖蜜和葡萄酒。