Process for hydrolyzing starch without pH adjustment
    10.
    发明申请
    Process for hydrolyzing starch without pH adjustment 审中-公开
    水解淀粉而不进行pH调节的方法

    公开(公告)号:US20080145900A1

    公开(公告)日:2008-06-19

    申请号:US12070679

    申请日:2008-02-20

    IPC分类号: C12P19/14

    CPC分类号: C08B30/12 C12P19/14

    摘要: An alpha-amylase enzyme obtained from Bacillus acidocaldarius species is utilized to liquefy starch at a pH as low as 3.0 without the need to add thermostabilizing agents such as calcium. The alpha-amylase produces acceptable DE yields in a single liquefaction step and does not need to be inactivated prior to conducting saccharification which can proceed without adjustment of the pH of the liquefact. Alternatively, a secondary liquefaction process can be utilized, in which case two additions of the alpha-amylase are used resulting in a combined low dosage of the enzyme.

    摘要翻译: 使用从嗜酸芽孢杆菌属物种获得的α-淀粉酶在低至3.0的pH下液化淀粉,而不需要加入热稳定剂如钙。 α-淀粉酶在单一液化步骤中产生可接受的DE产率,并且在进行糖化之前不需要灭活,其可以在不调整液化的pH的情况下进行。 或者,可以使用二次液化方法,在这种情况下,使用两次加入的α-淀粉酶,导致酶的低剂量组合。