The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2021
Filed:
Jul. 30, 2019
Jiangnan University, Wuxi, CN;
Dongtai Haorui Biotechnology Co., Ltd., Dongtai, CN;
Yongmei Xia, Wuxi, CN;
Liping Zhu, Wuxi, CN;
Tongtong Zhang, Wuxi, CN;
Guoying Du, Dongtai, CN;
Xiang Liu, Wuxi, CN;
Yun Fang, Wuxi, CN;
Jiangnan University, Wuxi, CN;
Dongtai Haorui Biotechnology Co., Ltd., Dongtai, CN;
Abstract
The present invention discloses a method for preparing lower graft degree GSGs, and belongs to the technical field of biosynthesis of sweeteners. The method uses amylase to catalyze hydrolysis of GSGs with a high graft degree, thereby obtaining GSGs with low graft degree mainly containing GSGs with a low grafting number. The content of mono- and di-glucosyl substituents in the SGs in the product was 60% or more of the total glycosides, and the mass percent of the GSGs with a glucosyl grafting number of 3 or less was higher than 70% of the total glycosides. The mono- and di-substituted GSGs obtained by enzyme catalysis by the present invention were structurally similar to those, belong to a mixture of the isomers thereof, and have good sweetness and a flavoring function.