Structural investigation of a polysaccharide (Fr. II) isolated from the aqueous extract of an edible mushroom, Pleurotus sajor-caju.
A water-soluble polysaccharide, (Fr. II) isolated from aqueous extract of an edible mushroom Pleurotus sajor-caju, was found to consist of D-glucose, D-galactose, and D-mannose in a molar proportion of 1:1:1. Compositional analysis, methylation analysis, periodate oxidation study, partial hydrolysis, and NMR experiments ((1)H, (13)C, 2D-COSY, TOCSY, NOESY, HSQC, and HMBC) revealed the presence of the following repeating unit in the polysaccharide: [formula: see text]
Pramanik
Malay
M
Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India.
Mondal
Soumitra
S
Chakraborty
Indranil
I
Rout
Dilip
D
Islam
Syed S
SS
D002240:Carbohydrate Sequence; D005690:Galactose / Q000737:chemistry; D005947:Glucose / Q000737:chemistry; D006868:Hydrolysis; D008358:Mannose / Q000737:chemistry; D008745:Methylation; D008970:Molecular Weight; D019906:Nuclear Magnetic Resonance, Biomolecular; D010084:Oxidation-Reduction; D010936:Plant Extracts / Q000737:chemistry; D020076:Pleurotus / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification*; D014867:Water / Q000737:chemistry*
D010936:Plant Extracts; D011134:Polysaccharides; D014867:Water; D005947:Glucose; D008358:Mannose; D005690:Galactose