A Polysaccaride from Hot-Water Extract of the Insect-Body Portion of Chan hua (Fungus : Cordceps cicadae)
| Autor: | TADASHI, KIHO, IKUO, MIYAMOTO, HISAO, IWATA, KATSUYUKI, NAGAI, CHIHIRO, HARA, SHIGEO, UKAI |
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| Přispěvatelé: | 岐阜薬科大学/岐阜薬科大学/岐阜薬科大学/岐阜薬科大学/岐阜薬科大学/岐阜薬科大学, Department of Hygienic Chemistry, Gifu Pharmaceutical University/Department of Hygienic Chemistry, Gifu Pharmaceutical University/Department of Hygienic Chemistry, Gifu Pharmaceutical University/Department of Hygienic Chemistry, Gifu Pharmaceutical University/Department of Hygienic Chemistry, Gifu Pharmaceutical University/Department of Hygienic Chemistry, Gifu Pharmaceutical University |
| Jazyk: | japonština |
| Rok vydání: | 1991 |
| Zdroj: | 岐阜藥科大學紀要 = The annual proceedings of Gifu College of Pharmacy. 40:32-37 |
| Popis: | 〓花(菌 : Cordyceps cicadae)虫体部の熱水抽出液より多糖CI-3L(〔α〕D+24.8゜)を単離した。CI-3LはD-mannose, D-gaIactose, D-glucoseがモル比, 1.0 : 1.0 : 0.3で構成され, 少量のタンパク質を含んでいた。CI-3Lは分子量が約32,000であり, コンカナバリンAに親和性がある。メチル化分析, スミス分解, 段階的加水分解, ^C-NMRスペクトルの結果は次のことを示した。本多糖は主として, 1→6結合のα-D-mannopyranose残基の主鎖並びに1→2結合のα-D-mannopyranose残基と1→2結合のβ-D-galactofuranose残基の側鎖から構成される。CI-3Lは虫体部から単離した他のgalacto(gluco)mannan類と類似した構造であるが, 比旋光度, 分子量, 及び結合様式の割合において異なっていた。 A polysaccharide CI-3L (Ca)D+24.8゜) was isolated from the hot-water extract of the insect-body portion of Chan hua (fungus : Cordyceps cicadae). It was found to consist of D-mannose, D-galactose and D-glucose in the molar ratio of 1.0 : 1.0 : 0.3,and contain a small amount of protein. CI-3L has a molecular weight of about 32,000,and affinity for concanavalin A. The results of methylation analysis, Smith degradation, stepwise hydrolysis and ^C-NMR spectroscopy indicated that the polysaccharide was composed primarily of a main chain of (1→6)-linked α-D-mannopyranosyl residues, and side chains of (l→2)-linked α-D-mannopyranosyl and ( I→2)-linked β-D-galactofuranosyl residues. CI-3L is similar in structure to other galacto (gluco) mannans of the insect-body portion, but differs in specific rotation, molecular weight, and proportions of linkage modes. |
| Databáze: | OpenAIRE |
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