| 摘要 |
PURPOSE:A specific enzyme forming cyclodextrin is allowed to act on terpenoids and starch whereby gamma-cyclodextrin is selectively obtained in high yield. CONSTITUTION:A starch which can be converted into cyclodextrins such as starch from potatoes or sweet potatoes and its hydrolyzate is converted into 2- 40wt% aqueous suspension, then 1-20units/g starch of cyclodextrin glycosyltransferase and 0.05-2.0wt% (based on the starch) of a tetra- or pentacyclic terpenoid, glycyrrhizin, peryandllin or steviosides are added to the suspension to effect reaction on standing or under stirring at 40-70 deg.C for 5-72hr to effect high-yield production of gamma-cyclodextrin.
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