Two-step enzyme method for preparing 7-aminocephalosporanic acid
    2.
    发明授权
    Two-step enzyme method for preparing 7-aminocephalosporanic acid 有权
    制备7-氨基头孢烷酸的两步酶法

    公开(公告)号:US08003358B2

    公开(公告)日:2011-08-23

    申请号:US11990115

    申请日:2006-08-02

    摘要: The present invention discloses a two-step enzyme method for preparing 7-aminocephalosporanic acid from cephalosporin C, wherein D-amino acid oxidase used is purified D-amino acid oxidase mutant of yeast Trigonopsis variabilis, having a specific activity of 105% higher than that of parent D-amino acid oxidase. The method has no need of addition of hydrogen peroxide, β-lactamase inhibitor, catalase inhibitor, catalase and the like commonly used in the prior art. The productivity of the method can reach more than 93%. Thus, the method is simple, low in cost and high in productivity.

    摘要翻译: 本发明公开了一种用于从头孢菌素C制备7-氨基头孢烷酸的两步酶方法,其中使用D-氨基酸氧化酶是酵母Trigonopsis variabilis的纯化D-氨基酸氧化酶突变体,比活性比其活性高105% 的母体D-氨基酸氧化酶。 该方法不需要加入现有技术中常用的过氧化氢,β-内酰胺酶抑制剂,过氧化氢酶抑制剂,过氧化氢酶等。 该方法的生产率可以达到93%以上。 因此,该方法简单,成本低,生产率高。

    Two-Step Enzyme Method for Preparing 7-Aminocephalosporanic Acid
    3.
    发明申请
    Two-Step Enzyme Method for Preparing 7-Aminocephalosporanic Acid 有权
    制备7-氨基头孢烷酸的两步酶法

    公开(公告)号:US20100112633A1

    公开(公告)日:2010-05-06

    申请号:US11990115

    申请日:2006-08-02

    IPC分类号: C12P35/00

    摘要: The present invention discloses a two-step enzyme method for preparing 7-aminocephalosporanic acid from cephalosporin C, wherein D-amino acid oxidase used is purified D-amino acid oxidase mutant of yeast Trigonopsis variabilis, having a specific activity of 105% higher than that of parent D-amino acid oxidase. The method has no need of addition of hydrogen peroxide, β-lactamase inhibitor, catalase inhibitor, catalase and the like commonly used in the prior art. The productivity of the method can reach more than 93%. Thus, the method is simple, low in cost and high in productivity.

    摘要翻译: 本发明公开了一种用于从头孢菌素C制备7-氨基头孢烷酸的两步酶方法,其中使用D-氨基酸氧化酶是酵母Trigonopsis variabilis的纯化D-氨基酸氧化酶突变体,比活性比其活性高105% 的母体D-氨基酸氧化酶。 该方法不需要加入现有技术中常用的过氧化氢,β-内酰胺酶抑制剂,过氧化氢酶抑制剂,过氧化氢酶等。 该方法的生产率可以达到93%以上。 因此,该方法简单,成本低,生产率高。