Dehydrodiferulic acids from sugar-beet pulp

被引：55

作者：

Micard, V

Grabber, JH

Ralph, J

Renard, CMGC

Thibault, JF

机构：

[1] INRA, BIOCHIM & TECHNOL GLUCIDES LAB, F-44316 NANTES 03, FRANCE

[2] USDA ARS, US DAIRY FORAGE RES CTR, MADISON, WI 53706 USA

来源：

PHYTOCHEMISTRY | 1997年 / 44卷 / 07期

关键词：

Beta vulgaris; Chenopodiaceae; sugar-beet pulp; ferulic acid; diferulic acids; dehydrodiferulic acids;

D O I：

10.1016/S0031-9422(96)00699-1

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：

Sugar-beet pulp was found to contain dehydrodimers of ferulic acid, which were characterized and quantified by GC and GC-mass spectrometry. These compounds arise from 8-5', 5-5', 8-8' and 8-O-4' coupling, the 8-5' form being preponderant; no 4-O-5' dimer was detected. Total dehydrodimers represented 0.14% (w/w) of the pulp. Their release was attempted by treatment of the pulp with a commercial pectinase. However, diferulates were resistant to this enzymic hydrolysis; free diferulic acids were not released and remained esterified to residual structures of the sugar-beet pectins. Copyright (C) 1997 Elsevier Science Ltd.

引用

页码：1365 / 1368

页数：4

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