摘要
通过高碘酸氧化、Smith降解、部分酸水解分析、NMR分析等多种方法对以不同浓度的NaOH溶液箬叶中提取的两种多糖FⅢa及FⅣa进行了研究,结果表明二者均具有多分枝结构,FⅢa主链以α(1→3)连接的木糖为主,分子侧链由半乳糖、阿拉伯糖、葡萄糖醛酸构成,葡萄糖醛酸主要位于分子的末端;FⅣa主链由α(1→3)木糖和β(1→6)半乳糖构成,以阿拉伯糖、葡萄糖醛酸组成侧链,葡萄糖醛酸主要位于分子的末端.
Two polysaccharides which were prepared from Chinese traditional medicine Ruoye ( Indocalamus tesselatus ), a kind of bamboo leaves by alkaline extraction were studied. Their physicochemical properties and structural feature were elucidated by modern analytical technique such as IR, NMR, GC, partial acid hydrolysis, periodate oxidation and Smith degradation. The typical absorptions of these polysaccharides were shown in IR spectra. The main structure was examined: FⅢ a, (1→6) β D galactosyl branched (1→3) α D Xylan and FⅣ a, (1→6) β D galactosyl (1→3) α D Xylan with arabinose branches at C 6 position.
出处
《生物化学与生物物理进展》
SCIE
CAS
CSCD
北大核心
1999年第1期51-55,共5页
Progress In Biochemistry and Biophysics
关键词
箬叶多糖
纯化
结构分析
Indocalamus tesselatus polysaccharides, purification, structural analysis