Chemical analysis of a new fucoglucan isolated from an edible mushroom, Termitomyces robustus.
A water-soluble fucoglucan, isolated from alkali-treated edible mushroom, Termitomyces robustus, consists of L-fucose and D-glucose in a molar proportion of 1:4. Structural investigation of the polysaccharide was carried out by using total hydrolysis, methylation analysis, and periodate oxidation followed by GLC-MS, and the final structure was determined using NMR experiments (1H, 13C, DQF-COSY, TOCSY, NOESY, ROESY, HMQC, and HMBC). On the basis of the above experiments it is concluded that the following repeating unit is present in the polysaccharide: [Formula: see text].
Mondal
Subhas
S
Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721 102, West Bengal, India.
Chandra
Krishnendu
K
Maiti
Debabrata
D
Ojha
Arnab K
AK
Das
Debsankar
D
Roy
Sadhan K
SK
Ghosh
Kaushik
K
Chakarborty
Indranil
I
Islam
Syed S
SS
D000363:Agaricales / Q000737:chemistry*; D002240:Carbohydrate Sequence; D005643:Fucose / Q000737:chemistry*; D005936:Glucans / Q000032:analysis*; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D008969:Molecular Sequence Data; D010084:Oxidation-Reduction; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification*
D005936:Glucans; D011134:Polysaccharides; D005643:Fucose