无花果叶中葡萄糖半乳糖的结构

IF 0.8 4区化学 Q4 CHEMISTRY, MEDICINAL

Chemistry of Natural Compounds Pub Date : 2025-03-24 DOI:10.1007/s10600-025-04614-5

M. O. Kuronboeva, K. S. Zhauynbaeva, R. K. Rakhmanberdyeva, M. R. Mirzaeva

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引用次数: 0

摘要

从无花果（Ficus carica L.）叶片中分离得到一种分子量为36 kDa，葡萄糖：半乳糖比为1.0:1.54的葡半乳糖。采用铬氧化、甲基化和13C NMR对该葡半乳糖进行了结构研究。GG-Fc葡糖半乳糖大分子的主链主要包含β-1,3键半乳糖醛酸残基，其中一些残基具有C-4侧支。葡萄糖残基分别为1→6、1→4和1→3。在未还原末端发现了半乳糖和葡萄糖残基。

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Structure of a Glucogalactan from Leaves of Ficus carica

A glucogalactan with molecular mass 36 kDa and glucose:galactose ratio of 1.0:1.54 was isolated from leaves of Ficus carica L. The structure of the glucogalactan was studied by chromic oxidation, methylation, and ¹³C NMR spectroscopy. The main chain of the GG-Fc glucogalactan macromolecule included mainly β-1,3-bonded galactopyranose residues, several of which had C-4 side branches. The glucose residues were 1→6, 1→4, and 1→3 bonded via glycoside bonds. Galactose and glucose residues were found on the unreduced terminuses.

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来源期刊

Chemistry of Natural Compounds 化学-有机化学

CiteScore

1.40

自引率

25.00%

发文量

265

审稿时长

7.8 months

期刊介绍： Chemistry of Natural Compounds publishes reviews and general articles about the structure of different classes of natural compounds, the chemical characteristics of botanical families, genus, and species, to establish the comparative laws and connection between physiological activity and the structure of substances.