CHEMICAL AND SPECTROSCOPIC STUDIES OF CERCIDIUM PRAECOX GUM EXUDATE

被引：36

作者：

DEPINTO, GL

MARTINEZ, M

RIVAS, C

机构：

[1] UNIV ZULIA,FAC HUMANIDADES & EDUC,CTR INVEST QUIM PROD NAT,MARACAIBO,VENEZUELA

[2] INST VENEZOLANO INVEST CIENT,CTR QUIM,CARACAS,VENEZUELA

来源：

CARBOHYDRATE RESEARCH | 1994年 / 260卷 / 01期

关键词：

CERCIDIUM PRAECOX; LEGUMINOSAE; GLUCURONOXYLAN; GUM EXUDATE; C-13 NMR SPECTROSCOPY;

D O I：

10.1016/0008-6215(94)80018-9

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：

The structure of the polysaccharide from Cercidium praecox (Rand P) Harms gum exudate has been studied by Smith degradation, by sugar and methylation analyses, and by C-13 NMR spectroscopy. The results showed a (1 --> 4)-xylan core. Some xylose residues are substituted at O-2 by alpha-D-glucuronic acid and 4-O-methyl-alpha-D-glucuronic acid residues. beta-D-Glucuronic acid is present, probably as terminal residues. The arabinose is present as alpha-L-furanose and beta-L-pyranose.

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页码：17 / 25

页数：9

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