Method for producing amide compounds using a nitrile hydratase from a
thermophilic bacillus
    3.
    发明授权
    Method for producing amide compounds using a nitrile hydratase from a thermophilic bacillus 失效
    使用来自嗜热芽孢杆菌的腈水合酶制备酰胺化合物的方法

    公开(公告)号:US6153415A

    公开(公告)日:2000-11-28

    申请号:US248528

    申请日:1999-02-10

    摘要: A process for the bioconversion of a nitrile to its corresponding amide product, particularly acrylonitrile to acrylamide which is used for forming polymers. The process uses a thermophilic bacterium having a nitrile hydratase activity that is constitutively expressed, activated by cobalt ions, stable at 60.degree. C., and is most active between 20.degree. C. to 70.degree. C. with optimum activity at 55.degree. C. Alternatively, the process uses the enzyme extracted from the thermophilic bacterium to convert a nitrile to its amide product. The genes encoding nitrile hydratase and amidase are described in which the former is useful for the conversion of an nitrile to its amide and the later is useful for the conversion of an amide to its acid.

    摘要翻译: 将腈转化成其相应的酰胺产物,特别是用于形成聚合物的丙烯腈至丙烯酰胺的方法。 该方法使用具有腈水合酶活性的嗜热细菌,其由钴离子组成型表达,在60℃下稳定,并且在20℃至70℃之间最为活跃,在55℃下具有最佳活性。 或者,该方法使用从嗜热细菌提取的酶将腈转化成其酰胺产物。 描述了编码腈水合酶和酰胺酶的基因,其中前者可用于将腈转化为其酰胺,并且后者可用于将酰胺转化为其酸。

    Method for producing amide compounds using a nitrile hydratase from a thermophilic bacillus
    9.
    发明授权
    Method for producing amide compounds using a nitrile hydratase from a thermophilic bacillus 失效
    使用来自嗜热芽孢杆菌的腈水合酶制备酰胺化合物的方法

    公开(公告)号:US06214603B1

    公开(公告)日:2001-04-10

    申请号:US09549108

    申请日:2000-04-13

    IPC分类号: C12N120

    摘要: A process for the bioconversion of a nitrile to its corresponding amide product, particularly acrylonitrile to acrylamide which is used for forming polymers. The process uses a thermophilic bacterium having a nitrile hydratase activity that is constitutively expressed, activated by cobalt ions, stable at 60° C., and is most active between 20° C. to 70° C. with optimum activity at 55° C. Alternatively, the process uses the enzyme extracted from the thermophilic bacterium to convert a nitrile to its amide product. The genes encoding nitrile hydratase and amidase are described in which the former is useful for the conversion of an nitrile to its amide and the later is useful for the conversion of an amide to its acid.

    摘要翻译: 将腈转化成其相应的酰胺产物,特别是用于形成聚合物的丙烯腈至丙烯酰胺的方法。 该方法使用具有腈水合酶活性的嗜热细菌,其由钴离子组成型表达,在60℃下稳定,并且在20℃至70℃之间最为活跃,在55℃具有最佳活性。 或者,该方法使用从嗜热细菌提取的酶将腈转化成其酰胺产物。 描述了编码腈水合酶和酰胺酶的基因,其中前者可用于将腈转化为其酰胺,并且后者可用于将酰胺转化为其酸。

    Method for production of monoterpene derivatives of limonene
    10.
    发明授权
    Method for production of monoterpene derivatives of limonene 失效
    柠檬烯单萜衍生物的制备方法

    公开(公告)号:US5763237A

    公开(公告)日:1998-06-09

    申请号:US857873

    申请日:1997-05-16

    CPC分类号: C12P7/02 Y10S435/832

    摘要: Enzymatic microbial degradation of limonene with simultaneous extraction of the degradation products with a non-water miscible organic solvent is described. Microbial degradation at elevated temperatures employing both an aqueous phase containing limonene and a neat limonene phase produced .alpha.-terpineol with additional production of carvone.

    摘要翻译: 描述了用非水混溶性有机溶剂同时提取降解产物的柠檬烯的酶促微生物降解。 使用包含柠檬烯和纯柠檬烯相的水相在高温下的微生物降解产生α-萜品醇,另外产生香芹酮。