Patent ID: 9055761
Filing Date: 2015-06-16
Classification: A21D,A23C,A23L,A23V,A61K,C07H,C12P

Abstract:
1. A process for producing a glucosyl stevia composition, comprising the steps of: adding starch into water to form a starch suspension; adding a mixture of α-amylase and a first portion of CGTase into the starch suspension and incubating the starch suspension, resulting in a liquefied starch suspension; inactivating the α-amylase by low pH heat treatment; adding steviol glycosides into the liquefied starch suspension, resulting in a reaction mixture; adding a second portion of CGTase into the reaction mixture and incubating the reaction mixture as a first transglucosylation step; removing non-reactant maltooligosaccharides by contacting the reaction mixture with a macroporous adsorbent resin to obtain a mixture of α-1,4-glucosyl derivatives; subjecting the mixture of α-1,4-glucosyl derivatives to a second transglucosylation step by CGTase in the presence of starch as a glucose donor to produce the glucosyl wherein the glucosyl stevia composition comprises steviol glycosides and their derivatives having up to twenty α-1,4-glucosyl residues.