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1. (Article ID: 8477)
Cirelli AF, de Lederkremer RM
A gel-forming (1→3)-β-D-glucan isolated from Cyttaria harioti fischer
Carbohydrate Research 48(2) (1976)
217-223
An alkali-soluble glucan, [α]D + 11° (M potassium hydroxide) having a degree of polymerization of 220, has been isolated from the fruit bodies of the tree fungus Cyttaria harioti Fischer. Periodate oxidation and methylation analysis show that it consists of a highly branched β-D-(1→3)-linked backbone. Hydrolysis of the methylated polysaccharide yielded 2,3,4,6-tetra-O-methyl- (24.5 mol%), 2,4,6-tri-O-methyl-(39.4 mol%), 2,3,4-tri-O-methyl- (8.6 mol%), and 2,4-di-O-methyl-D-glucose (27.5 mol%). Periodate-oxidation results substantiate the methylation studies. The general structural features of the glucan are discussed
(1→3)-β-D-glucan, Cyttaria harioti
Publication DOI: 10.1016/S0008-6215(00)83217-6Journal NLM ID: 0043535Publisher: Elsevier
Institutions: Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Methods: methylation, periodate oxidation, acid hydrolysis, GLC, Smith degradation, paper chromatography, extraction, optical rotation measurement, reduction, dialysis, melting point determination, precipitation, derivatization, evaporation, centrifugation
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