Preparation and Structural Analysis of Sulfated Derivatives of Lentinan.
Sheng Wu Hua Xue Yu Sheng Wu Wu Li Xue Bao (Shanghai)
; 31(5): 594-597, 1999.
Article
em En
| MEDLINE
| ID: mdl-12114978
ABSTRACT
A series of sulfated derivatives of lentinan were prepared by the modified Wolfrom method. Sulfates content analysis indicated that the proportion of sulfate substitution depended on the reaction time and the ratio of chlorsulfonic acid and pyridine in the ester reagent. Methylation analysis by Needs method and Hakomori method was proved not to be suitable for the structural analysis of sulfated lentinan. (13)C-NMR data showed that sulfates were located on the carbon-6 in all sulfated derivatives of lentinan showing the higher reactivity of the hydroxyls on C-6 position than those at other position.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
1999
Tipo de documento:
Article