ENZYMATICALLY CATALYZED METHOD OF PREPARING MONO-ACYLATED POLYOLS
    23.
    发明申请
    ENZYMATICALLY CATALYZED METHOD OF PREPARING MONO-ACYLATED POLYOLS 审中-公开
    制备单取代多元醇的酶催化方法

    公开(公告)号:US20140242651A1

    公开(公告)日:2014-08-28

    申请号:US14220301

    申请日:2014-03-20

    IPC分类号: C12P7/62 C12N9/20

    CPC分类号: C12P7/62 C12N9/20 C12P41/004

    摘要: The present invention relates to a biocatalytic method of preparing a mono-acylated polyol catalyzed by triacylglycerol lipase mutants, as for example derived from Candida antarctica lipase B (CALB); a biocatalytic method of enantioselectively preparing an asymmetric mono-acylated polyol, catalyzed by the same enzyme mutants; as well as the use of a mutated triacylglycerol lipase in a method of preparing mono-acylated polyols. The invention also provides novel mutants, coding sequences thereof, and recombinant microorganisms carrying said coding sequences.

    摘要翻译: 本发明涉及由三酰基甘油脂肪酶突变体催化的单酰化多元醇的生物催化方法,例如衍生自南极假丝酵母脂肪酶B(CALB); 通过相同的酶突变体催化的对映选择性制备不对称单酰化多元醇的生物催化方法; 以及在制备单酰化多元醇的方法中使用突变的三酰基甘油脂肪酶。 本发明还提供了新的突变体,其编码序列和携带所述编码序列的重组微生物。

    Method for the Enzyme-Catalysed Hydrolysis of Polyacrylic Acid Esters, and Esterases Used Therefor
    24.
    发明申请
    Method for the Enzyme-Catalysed Hydrolysis of Polyacrylic Acid Esters, and Esterases Used Therefor 审中-公开
    聚丙烯酸酯酶催化水解方法及其酯酶

    公开(公告)号:US20140100338A1

    公开(公告)日:2014-04-10

    申请号:US14100680

    申请日:2013-12-09

    IPC分类号: C12P7/62 C12N9/18

    摘要: The invention relates to a method for the enzyme-catalysed hydrolysis of polyacrylic acid esters. According to said method, at least one polyacrylic acid ester is provided and incubated with at least one enzyme selected from enzymes (EC 3.1) acting on ester bindings, until the ester groups contained in the polyacrylic acid ester are partially or fully hydrolytically split, and optionally the modified polymer obtained thereby is isolated. The invention also relates to the enzymes used and mutants thereof, nucleic acids coding for the enzymes, vectors comprising the nucleic acids, micro-organisms comprising the vectors, and the use of the enzymes, the vectors or the micro-organisms for carrying out a method for the enzyme-catalysed hydrolysis of polyacrylic acid esters. The present application also relates to polymer reaction products that can be obtained by the method, and methods for producing esterases.

    摘要翻译: 本发明涉及聚丙烯酸酯的酶催化水解方法。 根据所述方法,提供至少一种聚丙烯酸酯,并与至少一种选自作用于酯结合的酶(EC 3.1)的酶进行温育,直到聚丙烯酸酯中所含的酯基部分或完全水解分裂为止,以及 由此分离获得的改性聚合物。 本发明还涉及使用的酶及其突变体,编码酶的核酸,包含核酸的载体,包含载体的微生物,以及使用酶,载体或微生物进行酶 聚丙烯酸酯酶催化水解的方法。 本申请还涉及可以通过该方法获得的聚合物反应产物和生产酯酶的方法。