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US 10,376,577 B2Granted
Refined product obtained from rice hull and preparation process and use thereof
AssigneeChina Medical University
InventorsWen-Chuan Lin, Li-Chan Yang, Chang-Chi Hsieh
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Abstract
Disclosed herein is a refined product obtained from a rice hull, which consists essentially of a type II arabinogalactan having a number average molecular weight in the range of 56 to 103 kDa. Also disclosed are a process for producing the refined product and use of the refined product for enhancing the biological activity of innate immune cells, as well as for treating allergy and cancer.
Claims4
A process for producing a refined product from a rice hull, comprising:
- subjecting a rice hull to extraction with an aqueous solution so as to obtain an aqueous extract;
- admixing the aqueous extract with a first alcohol so as to obtain a first precipitate;
- subjecting the first precipitate to an enzymatic hydrolysis treatment so as to obtain an aqueous enzymatic hydrolysate, the enzymatic hydrolysis treatment employing an aqueous composition containing α-amylase, protease, and amyloglucosidase;
- admixing the aqueous enzymatic hydrolysate with a second alcohol so as to obtain a second precipitate;
- and
- refining the second precipitate by anion exchange chromatography, such that the refined product thus obtained consists essentially of a type II arabinogalactan having a number average molecular weight in the range of 56 to 103 kDa.
3 more elements
Dependencies are inferred from the claim text.