Polyphenols from peanut skins and their free radical-scavenging effects
H Lou, H Yuan, B Ma, D Ren, M Ji, S Oka
Index: Lou, Hongxiang; Yuan, Huiqing; Ma, Bin; Ren, Dongmei; Ji, Mei; Oka, Syuichi Phytochemistry, 2004 , vol. 65, # 16 p. 2391 - 2399
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Citation Number: 87
Abstract
Separation of the water-soluble fraction of peanut skins led to the isolation of five proanthocyanidins. Based on the spectroscopic investigation and partial acid catalyzed degradation, their structures were determined to be epicatechin-(2β→ O→ 7, 4β→ 6)- [epicatechin-(4β→ 8)]-catechin (1), epicatechin-(2β→ O→ 7, 4β→ 8) epicatechin-(4β→ 8)- catechin-(4α→ 8)-epicatechin (2), and procyanidins B2 (3), B3 (4) and B4 (5). The ...
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