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    • 4. 发明授权
    • Process for producing 2-O-alpha-D-glucopyranosyl-L-ascorbic acid
    • 制备2-O-α-D-吡喃葡萄糖基-L-抗坏血酸的方法
    • US08759030B2
    • 2014-06-24
    • US10523920
    • 2003-07-07
    • Kazuhisa MukaiKeiji TsusakiMichio KubotaShigeharu FukudaToshio Miyake
    • Kazuhisa MukaiKeiji TsusakiMichio KubotaShigeharu FukudaToshio Miyake
    • C12P19/44
    • C12P19/60
    • The object of the present invention is to provide a method and a process for producing 2-O-α-glucopyranosyl-L-ascorbic acid where 5-O-α-glucopyranosyl-L-ascorbic acid and 6-O-α-glucopyranosyl-L-ascorbic acid are not formed or formed in such a small amount that the formation of these can nor be detected. The present invention solves the above object by providing a process for producing 2-O-α-glucopyranosyl-L-ascorbic acid comprising the steps of allowing α-isomaltosyl glucosaccharide-forming enzyme together with or without cyclomaltodextrin glucanotransferase (EC 2.4.1.19) to act on a solution comprising L-ascorbic acid and, an α-glucosyl saccharide to form 2-O-α-glucopyranosyl-L-ascorbic acid and collecting the formed 2-O-α-glucopyranosyl-L-ascorbic acid.
    • 本发明的目的是提供一种生产2-O-α-吡喃葡萄糖基-L-抗坏血酸的方法和方法,其中5-O-α-吡喃葡萄糖基-L-抗坏血酸和6-O-α-吡喃葡萄糖基 - L-抗坏血酸不是以这样的少量形成或形成,也可以不形成。 本发明通过提供一种生产2-O-α-吡喃葡萄糖基-L-抗坏血酸的方法来解决上述目的,其包括以下步骤:将α-异麦芽糖基葡萄糖形成酶与或不与环糊精葡聚糖转移酶(EC 2.4.1.19)一起 作用于包含L-抗坏血酸和α-葡萄糖基糖的溶液中以形成2-O-α-吡喃葡萄糖基-L-抗坏血酸并收集形成的2-O-α-吡喃葡萄糖基-L-抗坏血酸。
    • 8. 发明申请
    • Method for transferring a glucosyl residue
    • 转移葡糖基残基的方法
    • US20070154996A1
    • 2007-07-05
    • US10587711
    • 2005-01-27
    • Tomoyuki NishimotoMichio KubotaShigeharu FukudaToshio Miyake
    • Tomoyuki NishimotoMichio KubotaShigeharu FukudaToshio Miyake
    • C12P19/04
    • C12P19/18C12P19/44
    • An object of the present invention is to provide novel methods for forming glucosyl-transferred polyalcohols, glucosyl-transferred glucuronic acid, and glucosyl-transferred derivatives of glucose whose C-6 hydroxyl group bound to a saccharide by using an enzymatic reaction. The present invention solves the above object by providing a method for transferring a glucosyl residue to polyalcohols, glucuronic acid and/or derivatives of glucose whose C-6 hydroxyl group bound to a saccharide, comprising a step of: allowing a trehalose phosphorylase to act on a saccharide containing glucose as a component sugar and one or more polyalcohols selected from the group consisting of inositol, ribitol, erythritol, and glycerol; glucuronic acid and/or a salt thereof; and/or one or more derivatives of glucose whose C-6 hydroxyl group bound to a saccharide selected from the group consisting of isomaltose, gentiobiose, melibiose, isomaltotriose, and isopanose.
    • 本发明的目的是提供通过酶促反应形成C-6羟基与糖结合的葡萄糖转移的多元醇,葡糖基转移的葡萄糖醛酸和葡萄糖转移的葡萄糖转移衍生物的新方法。 本发明通过提供一种将葡糖基残基转移到多糖,葡糖醛酸和/或其C-6羟基与糖结合的葡萄糖的衍生物的方法,包括以下步骤:使海藻糖磷酸化酶作用于 含有葡萄糖作为组分糖和一种或多种选自肌醇,核糖醇,赤藓糖醇和甘油的多元醇的糖; 葡萄糖醛酸和/或其盐; 和/或一种或多种C-6羟基结合于选自异麦芽糖,龙胆糖,蜜二糖,异麦芽三糖和异丙糖的糖的葡萄糖衍生物。