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component in sterol glycosides, and hence the molecular species present in them are likely to be /3-sitosterol or stigmasterol glucoside and sterol 6-acylglucoside, where the sterol could be /3-sitosterol or stigmasterol and the acyl moiety palmitic, linoleic, and linolenic acid, respectively. On the basis of the earlier reports (Kiribuchi et al., 1966; Miyazawa et al., 1974; Mahadevappa and Raina, 1978b), the structure deduced for sterol glycoside would be /3-dglucopyranosyl-(l-*3)-S, where S represents either /3-sitosterol or stigmasterol and acyl would imply palmitic, linoleic, or linolenic acid.The main sterol in plant sources reported earlier (Lep-

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