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:
Apr. 26, 2022
Filed:
Apr. 16, 2020
Qilu University of Technology, Jinan, CN;
Qilu University of Technology, Ji'nan, CN;
Abstract
Green preparation methods of rice resistant starch are disclosed. In some embodiments, a green preparation method of the rice resistant starch is characterized in that, at a temperature lower than the gelatinization temperature, the rice starch is sequentially modified by enzymes using β-amylase, glucosidase, and pullulanase to obtain the modified starch. In other embodiments, a green preparation method of the rice resistant starch is characterized by using: rice starch as a substrate; and in turn using: (a) β-amylase (BA, EC 3.2.1.2) from barley (); (b) glucoside transferase (TG, EC 2.4.1.24) from; and (c) pullulanase (PUL, EC 3.2.1.41) frombelow a gelatinization temperature to modify a chain structure of the rice starch, resulting in a number of short linear chains which are effectively arranged, aggregated, and recrystallized at 4° C. to form modified rice starch with high resistant starch content.
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