Rhizopus oryzae strain, mutagenesis and screening methods thereof, and methods of fermenting to produce fumaric acid
    18.
    发明授权
    Rhizopus oryzae strain, mutagenesis and screening methods thereof, and methods of fermenting to produce fumaric acid 有权
    米根霉菌株,其诱变和筛选方法以及发酵产生富马酸的方法

    公开(公告)号:US08663972B2

    公开(公告)日:2014-03-04

    申请号:US13992233

    申请日:2011-04-16

    CPC classification number: C12P7/46 C12N1/14 C12N15/01 C12R1/845

    Abstract: A rhizopus oryzae strain, mutagenesis and screening methods thereof, and methods of producing fumaric acid by fermentation. The strain is named as Rhizopus oryzae ME-F13, and deposited in China Center for Type Culture Collection with depository number CCTCC M 2010351. The strain is obtained by physically mutagenizing the original strain ME-F12 through ion injection, culturing the processed bacteria on the solid selective plate containing 2-D-deoxylucose (2-DG) and picking up 2-DG-resistant single colony. The strain is capable of simultaneously saccharifying starchy material and fermenting it to produce fumaric acid. With an improved enzymatic activity, the strain can be directly used to ferment raw starchy materials without needing pre-saccharifying.

    Abstract translation: 根霉菌株,其诱变和筛选方法,以及通过发酵产生富马酸的方法。 该菌株被命名为米曲霉ME-F13,并存放于中国型号培养基中心,存放号码为CCTCC M 2010351.该菌株是通过离子注射物理诱变原始菌株ME-F12获得的, 含有2-D脱氧葡萄糖(2-DG)的固体选择性板和拾取2-DG抗性单个菌落。 该菌株能够同时糖化淀粉物质并发酵以产生富马酸。 具有改善的酶活性,该菌株可以直接用于发酵生淀粉材料,而不需要预糖化。

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