An acetylated galactoglucomannan from Picea abies L. Karst
An acetylated galactoglucomannan from Picea abies L. Karst
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DOI：
10.1016/s0008-6215(02)00090-3
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发表时间：
2002-06-05
影响因子：
3.1
通讯作者：
Lisková, D
中科院分区：
文献类型：
--
作者：
Capek, P;Alföldi, J;Lisková, D
从喀斯特云杉的次生细胞壁中分离得到一种由 D-半乳糖、D-葡萄糖和 D-甘露糖以 1:3:17 摩尔比组成的水溶性半乳葡甘露聚糖。约33%的多糖单元被乙酰基取代。聚合物的结构研究表明，β-(1-->4)-连接的吡喃葡萄糖基主链在甘露糖基和葡萄糖基残基的 O-6 处具有低含量的分支点。优选甘露糖基表明存在单个D-半乳糖基单元侧链。大约一半的甘露糖残基在 C-2 和 C-3 处以 1.7:1 摩尔比例进行 O-乙酰化。 (C) 2002 Elsevier Science Ltd. 保留所有权利。
A water-soluble galactoglucomannan composed of D-galactose, D-glucose, and D-mannose in 1:3:17 mole proportion has been isolated from the secondary cell walls of Picea abies L. Karst. About 33% of the polysaccharide units were substituted by acetyl groups. Structural studies of the polymer indicated a beta-(1-->4)-linked glucomannopyranosyl backbone with a low content of branch points at O-6 of mannosyl and glucosyl residues. A preference for mannosyl groups indicates the presence of a single D-galactosyl unit side-chain. About half of the mannose residues were O-acetylated at C-2 and C-3 in 1.7:1 mole proportion. (C) 2002 Elsevier Science Ltd. All rights reserved.