A heteropolysaccharide from aqueous extract of an edible mushroom, Pleurotus ostreatus cultivar: structural and biological studies.
A water soluble polysaccharide isolated from the hot aqueous extract of Pleurotusostreatus cultivar was found to contain d-glucose and d-galactose in a molar ratio of nearly 7:1. Structural investigation was carried out using acid hydrolysis, methylation analysis, periodate oxidation, Smith degradation, and NMR studies ((1)H, (13)C, DEPT-135, TOCSY, DQF-COSY, NOESY, ROESY, HMQC, and HMBC). On the basis of the above mentioned experiments the structure of the repeating unit of the polysaccharide was established as: This heteroglycan stimulates macrophages, splenocytes, and thymocytes.
Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India.
Kankan K
KK
Maity
Sukesh
S
Patra
Biswajit
B
Dey
Sanjoy K
SK
Bhunia
Soumitra
S
Mandal
Debsankar
D
Das
Dibyendu K
DK
Majumdar
Swatilekha
S
Maiti
Tapas K
TK
Maiti
Syed S
SS
Islam
D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D020076:Pleurotus / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification; D014867:Water / Q000737:chemistry
D011134:Polysaccharides; D014867:Water