INSOLUBLE ELLAGITANNINS IN CASTANEA-SATIVA AND QUERCUS-PETRAEA WOODS

被引：134

作者：

PENG, S ^{[1
]}

SCALBERT, A ^{[1
]}

MONTIES, B ^{[1
]}

机构：

[1] INST NATL AGRON PARIS GRIGNON, CTR BIOTECHNOL AGRO IND, INRA, CHIM BIOL LAB, F-78850 THIVERVAL GRIGNON, FRANCE

来源：

PHYTOCHEMISTRY | 1991年 / 30卷 / 03期

关键词：

CASTANEA-SATIVA; QUERCUS-PETRAEA; FAGACEAE; WOOD; AGING; OXIDATION; ELLAGITANNINS; ELLAGIC ACID;

D O I：

10.1016/0031-9422(91)85250-4

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：

Sapwood and heartwood samples of sweet chestnut (Castanea sativa) and sessile oak (Quercus petraea) were extracted with aqueous acetone. Ellagitannins were estimated in both extracts and extraction residues, by the Folin-Ciocalteu method and by determination of ellagic acid formed after acid degradation. Ellagitannins were found to accumulate in comparable concentrations (ca 10% DM) in the heartwoods of both species. The concentrations of soluble ellagitannins slowly decreased from the periphery to the centre of the heartwood as it ages. This decrease was balanced by an equivalent increase of insoluble ellagitannins, resulting probably from the slow oxidative polymerization or copolymerization with cell-wall components of soluble ellagitannins.

引用

页码：775 / 778

页数：4

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