鄭建仙; 耿立萍
華南理工大學(xué)食品工程系

【中文摘要】 通過酸水解，甲基化和Ｓｍｉｔｈ降解等分析方法，借助于氣相色譜和紅外光譜等近代分析儀器，對存在于香菇柄中ＰＪＦＩ多糖的化學(xué)本質(zhì)作了剖析，建立了結(jié)構(gòu)模型。結(jié)果表明，ＰＪＦＩ是帶分支結(jié)構(gòu)的多糖分子，其主鏈?zhǔn)怯?beta;（１→３）糖苷鍵連接的葡聚糖，主鏈通過Ｃ＿６位置帶有（１→６）鍵連的低聚葡萄糖或低聚半乳糖作為側(cè)鏈，部分低聚半乳糖短鏈還通過Ｃ＿２位置連有甘露糖低度聚合物或木糖殘基作為二級(jí)側(cè)鏈。

【英文摘要】 ollowed by the analysis methods of acid hydrolysis, methylation and Smith degr-adation,with the help of modern instruments of GC and IR etc,the chemistry natureof PJFI polysaccharide from foot body of Lentinus edodes was analysed and its structuralmodel was founded,The results showed that a branched molecule of PJFI contained aβ(1→3)linked glucan backbone,which was branched at position C_6 with(1→6)─linkedglucooligosaccharide of galactooligosaccharide side chain,some of galactooligosaecharideshort chain,in turn,carried mannooligosaccharide or xylose residues,as the substituenton position C_2.

【中文關(guān)鍵詞】 香菇柄; 多糖; 結(jié)構(gòu)模型
【英文關(guān)鍵詞】 Foot Body of Lentinus edodes; Polysaccharid、Structural Model

【文獻(xiàn)出處】 中國食用菌,EDIBLE FUNGI OF CHINA,編輯部郵箱,1995年05期 【DOI】CNKI:SUN:ZSYJ.0.1995-05-002