Chemical analysis of new water-soluble (1?6)-, (1?4)-a, b-glucan and water-insoluble (1?3)-, (1?4)-b-glucan (Calocyban) from alkaline extract of an edible mushroom, Calocybe indica (Dudh Chattu)
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2010-12-10Author
Mandal, Soumitra
Maity, Kankan K
Bhunia, Sanjoy Kumar
Dey, Biswajit
Patra, Sukesh
Sikdar, Samir Ranjan
Islam, Syed S.
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Two different glucans (PS-I, water-soluble; and PS-II, water-insoluble) were isolated from the alkaline extract of fruit bodies of an edible mushroom Calocybe indica. On the basis of acid hydrolysis, methylation analysis, periodate oxidation, and NMR analysis (1H, 13C, DEPT-135, TOCSY, DQF-COSY, NOESY, ROESY, HMQC, and HMBC), the structure of the repeating unit of these polysaccharides were established as:
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