专利名称：Method for the preparation of branched
cyclodextrins
发明人：Shoichi Kobayashi,Keiji Kainuma申请号：US06/697774申请日：19850204公开号：US04668626A公开日：19870526
摘要：The invention provides an efficient enzymatic method for the preparation ofbranched cyclodextrins such as glucosyl and maltosyl cyclodextrins. The inventivemethod comprises the enzymatic reaction of a branch-splitting enzyme and &bgr;-amylase simultaneously with a mixture of a cyclodextrin and starch. Alternatively, abranched cyclodextrin is obtained from a mixture of a cyclodextrin and maltose in anenzymatic reaction with pullulanase, optionally, with admixture of an alcohol such as ethyland propyl alcohols or a glycol such as ethyleneglycol and propyleneglycol to thereaction mixture. A glucosyl cyclodextrin can be obtained by the steps of first subjectinga mixture of a cyclodextrin and maltose to an enzymatic reaction with pullulanase andthen subjecting the reaction product to a second enzymatic reaction in the presence ofan enzyme mixture composed of takaamylase and glucoamylase and yeast.
申请人：DIRECTOR OF NATIONAL FOOD RESEARCH INSTITUTE, MINISTRY OFAGRICULTURE, FORESTRY AND FISHERIES
代理机构：Frishauf, Holtz, Goodman & Woodward
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