Carbohydrate Research p. 107 - 113 (2012)
Update date:2022-08-16
Topics:
Sarkar, Ramsankar
Nandan, Chanchal K.
Bhunia, Sanjoy K.
Maiti, Swatilekha
Maiti, Tapas K.
Sikdar, Samir R.
Islam, Syed S.
Two different glucans (water-soluble PS-I, water-insoluble PS-II) were isolated from the alkaline extract of the fruit bodies of hybrid mushroom. PS-I was found to consist of only (1→6)-linked β-d-glucopyranose. PS-II was composed of terminal, (1→3,4)-linked, and (1→3)-linked β-d-glucopyranosyl moieties in a molar ratio of nearly 1:1:1. PS-I showed macrophages, splenocytes, and thymocytes activation as well as antioxidant property. On the basis of sugar analysis, methylation analysis, and NMR studies (1H, 13C, DEPT-135, TOCSY, DQF-COSY, NOESY, ROESY, HMQC, and HMBC), the structure of the repeating unit of these glucans were established as: PS-I →6)-β-D-Glcp-(1→(Water-soluble glucan) PS-II →3)-Β-D-Glcp-(1→3)-β-D-Glcp-(1→4↑1 β-D-Glcp (Water-Insoluble glucan)
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