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You searched for: Author "Sato, Takafumi" Remove constraint Author: "Sato, Takafumi" Publication Year 2011 Remove constraint Publication Year: 2011 Subject corn starch Remove constraint Subject: corn starch Subject antioxidant activity Remove constraint Subject: antioxidant activity Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Purification and Characterization of Polyphenols from Chestnut Astringent Skin

Author:
Sato, Takafumi,   et al.   ; Tsujita, Takahiro; Yamada, Misato; Takaku, Takeshi; Shintani, Tomoyoshi; Teramoto, Kanae;     Show all 6 Authors
Source:
Journal of agricultural and food chemistry 2011 v.59 no.16 pp. 8646-8654
ISSN:
0021-8561
Subject:
Castanea; alpha-amylase; antioxidant activity; blood glucose; corn starch; dialysis; ellagic acid; gallic acid; oral administration; proanthocyanidins; procyanidins; rats; tannins
Abstract:
... Polyphenolic compounds from chestnut astringent skin (CAS) were purified by dialysis, using Diaion HP-20 and Sephadex LH-20 columns. During purification, specific alpha-amylase inhibitory activities were increased about 3.4-fold, and the 50% inhibition value was 5.71 micrograms/mL in the Sephadex LH-20 fraction (SE-fraction). The SE-fraction contained about 67% of the total polyphenols, 57.3% of t ...
DOI:
10.1021/jf201679q
PubMed:
21777007