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    • 1. 发明申请
    • Process for producing purified anthocyanin and crystalline anthocyanin
    • 生产纯化花青素和结晶花青素的方法
    • US20040101933A1
    • 2004-05-27
    • US10380056
    • 2003-03-11
    • Hitoshi MatsumotoSatoshi HanamuraMasao Hirayama
    • C12P019/60C07H017/00
    • C07H17/00C07H17/065C09B61/00C12P19/14C12P19/44
    • Provided are a process for producing purified anthocyanidin glucoside in which a rhamnose end of anthocyanidin rutinoside is cleaved using rhamnosidase to convert the anthocyanidin rutinoside component into anthocyanidin glucoside, the anthocyanidin glucoside component being then purified and isolated; or a crystalline anthocyanidin glucoside salt obtained by further crystallizing the purified anthocyanidin glucoside and a process for producing the same. Also provided are a process for producing purified anthocyanidin rutinoside in which a glucose end of anthocyanidin glucoside is cleaved using null-glucosidase to degrade and remove the end, the anthocyanidin rutinoside component being then purified and isolated; or a crystalline anthocyanidin rutinoside salt obtained by further crystallizing the purified anthocyanidin rutinoside and a process for producing the same.
    • 提供了使用鼠李糖苷酶将花色素芸香糖苷成分转化为花色素苷葡糖苷的花青素芸香糖苷的鼠李糖末端切割纯化花青素葡糖苷的方法,然后纯化和分离花色素苷苷组分; 或通过进一步结晶纯化的花青素葡糖苷而获得的结晶花色素苷糖苷及其制备方法。 还提供了生产纯化的花青素芸香糖苷的方法,其中使用β-葡糖苷酶切割花青素葡糖苷的葡萄糖末端以降解和除去末端,然后纯化和分离花色素芸香糖苷组分; 或通过进一步结晶纯化的花青素芸香苷获得的结晶花色素芸香糖苷盐及其制备方法。
    • 2. 发明申请
    • Methods for making polyketides
    • 聚酮化合物的制备方法
    • US20040018597A1
    • 2004-01-29
    • US10400092
    • 2003-03-25
    • Chaitan KhoslaJanice LauNicola L. Pohl
    • C12P019/60C12N009/10C12N001/21C12N015/74
    • C12N15/52C12P19/62
    • The stereochemical centers of a polyketide can be changed by replacement of ketosynthase domains in the polyketide synthase (PKS) enzyme that produces the polyketide. The specificity of the AT domains of a PKS is determined by a hypervariable region that can be replaced or altered to change the specificity of the AT domain from a naturally occurring extender unit to another naturally or non-naturally occurring extender unit. Non-naturally occurring extender units, including methylmalonyl N-acetyl cysteamine thioester can be incorporated into polyketides in recombinant host cells or in cell-free systems to make polyketides.
    • 聚酮化合物的立体化学中心可以通过在产生聚酮化合物的聚酮化合物合酶(PKS)酶中置换酮解酶结构域来改变。 PKS的AT结构域的特异性由可以被替换或改变的高变区确定,以将AT结构域从天然存在的延伸单元特异性改变为另一天然或非天然存在的延伸单元。 包括甲基丙二酰基N-乙酰基半胱胺硫代酯在内的非天然存在的增量单元可以掺入重组宿主细胞中的聚酮化合物或无细胞系统中以制备聚酮化合物。