Structural studies of a methyl galacturonosyl-methoxyxylan isolated from the stem of Lagenaria siceraria (Lau)

被引：20

作者：

Ghosh, Kaushik ^{[1
]}

Chandra, Krishnendu ^{[1
]}

Roy, Sadhan K. ^{[1
]}

Mondal, Subhas ^{[1
]}

Maiti, Debabrata ^{[1
]}

Das, Debsankar ^{[1
]}

Ojha, Arnab K. ^{[1
]}

Islam, Syed S. ^{[1
]}

机构：

[1] Vidyasagar Univ, Dept Chem & Chem Technol, Midnapore 721102, W Bengal, India

来源：

CARBOHYDRATE RESEARCH | 2008年 / 343卷 / 02期

关键词：

Lagenaria siceraria; polysaccharide; structure; NMR spectroscopy; MALDI-TOF MS analysis;

D O I：

10.1016/j.carres.2007.09.013

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 [生物化学与分子生物学]; 081704 [应用化学];

摘要：

A water-soluble polysaccharide was isolated from the aqueous extract of the stem of Lagenaria siceraria. The polysaccharide was found to be constituted of methyl D-galacturonate, 2-O-methyl-D-xylose, and D-xylose in a ratio of 1:1:1. On the basis of total acid hydrolysis, methylation analysis, periodate oxidation, NMR studies (H-1, C-13, 2D-COSY, TOCSY, NOESY, HSQC, and HMBC), and MALDI-TOF MS analysis, the structure of the repeating unit of the polysaccharide is determined as [GRAPHICS] (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：341 / 349

页数：9

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