Identification of a sucrose diester of a substituted β-truxinic acid in oats

被引：15

作者：

Dimberg, LH

Andersson, RE

Gohil, S

Bryngelsson, S

Lundgren, LN

机构：

[1] Swedish Univ Agr Sci, Dept Food Sci, SE-75007 Uppsala, Sweden

[2] Swedish Univ Agr Sci, Dept Chem, SE-75007 Uppsala, Sweden

来源：

PHYTOCHEMISTRY | 2001年 / 56卷 / 08期

关键词：

Avena sativa; cyclobutane; diferulic acid; lignan; MS; NMR;

D O I：

10.1016/S0031-9422(00)00505-7

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A novel compound, 4,4'-dihydroxy-3,3'-dimethoxy-beta -truxinic acid esterified to sucrose through the fructosyl 3-and 6-carbons (1), was isolated from oat grains (Avena sativa L.). Its structure was determined by a combination of mass spectrometry and 1-D and 2-D NMR. The amounts of 1 in groats of six different oat cultivars ranged from 101 to 150 mug g(-1) (dry wt). None was detected in the hulls. The free diacid, 4,4'-dihydroxy-3,3'-dimethoxy-beta -truxinic acid (2), could not be detected in groats nor in hulls. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：843 / 847

页数：5

共 25 条

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