Process for the preparation of derivatives of maltooligosaccharides
AssigneesNihon Shokuhin Kako Co., Ltd., Yaizu Suisan Kagaku Kogyo Co., Ltd.
InventorsTaichi Usui, Teruo Nakakuki, Kazuo Sakai
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Abstract
Highly purified derivatives of maltooligosaccharides can be produced at a high yield by reacting, in a mixture of a hydrophilic organic solvent and water, a mixture of maltooligosaccharides or a substance capable of being converted into the maltooligosaccharides upon reaction with an amylase, and an o-glucosyl derivative, with the amylase. The resulting derivatives of maltooligosaccharides are useful as a substrate for the determination of .alpha.-amylase activity in a humor, physiologically active substances, natural dieteic sweetenings, coloring agents and the like.
Claims14
A process for the preparation of a derivative of maltooligosaccharide comprising an .alpha.-phenylmaltooligoside or a .beta.-phenylmaltooligoside wherein the phenyl or substituted phenyl group thereof contains two or more glucoses bonded thereto or a derivative of maltooligosaccharide having two or more glucoses bonded to aglycone selected from the group consisting of phenol glycosides, coumarin glycosides, anthracene glycosides, terpene glycosides, bitter glycosides, steroid glycosides, cardiac glycosides, gibberellin glycosides and lignan glycosides comprising reacting amylase and a mixture of (i) at least one maltooligosaccharide or a decomposition product of starch capable of being converted into the maltooligosaccharides upon reaction with the amylase, and (ii) an o-glycosyl derivative, in a mixture of a hydrophilic organic solvent and water.
Dependencies are inferred from the claim text.