Purified acid-stable alpha-amylase from fungal origin
    2.
    发明公开
    Purified acid-stable alpha-amylase from fungal origin 失效
    GereinigtesäurestabileAlpha-Amylase von schimmeliger Herkunft

    公开(公告)号:EP0860500A1

    公开(公告)日:1998-08-26

    申请号:EP98301183.4

    申请日:1998-02-18

    摘要: The present invention describes a simple and inexpensive purification method for acid-stable fungal alpha-amylase wherein the alpha-amylase is obtained without significant loss of enzyme activity. The purified acid-stable alpha-amylase which is obtained is substantially free from glucoamylase. The method for obtaining an acid-stable alpha-amylase comprises the steps of

    adjusting the pH of the enzyme containing solution to a value between 1 and 8,
    heating the solution to a temperature and for a time sufficient to inactivate glucoamylase,
    removing the denatured glucoamylase.
    The purified acid-stable alpha-amylase is used for the conversion of starch. The purified alpha-amylase is also used in an immobilized form.

    摘要翻译: 本发明描述了一种简单且廉价的酸稳定型真菌α-淀粉酶纯化方法,其中获得的α-淀粉酶没有显着的酶活性损失。 获得的纯化的酸稳定的α-淀粉酶基本上不含葡糖淀粉酶。 获得酸稳定性α-淀粉酶的方法包括以下步骤:将含酶溶液的pH调节至1至8之间的值,将溶液加热到足以灭活葡糖淀粉酶的温度和时间,除去变性葡糖淀粉酶 。 纯化的酸稳定的α-淀粉酶用于淀粉的转化。 纯化的α-淀粉酶也以固定化形式使用。