The desilked silkworm pupae (Bombyx mori L.) collected from Kollegala, Malavalli and Ramanagaram belt of Karnataka State (South India) were extracted with chloroform : methanol = 2:1 (v/v). The oil was fractionated on activated silica gel column into neutral, glyco‐ and phospholipids. The fractions of glyco‐ and phospholipid;; were saponified seperately. The saponifiable fractions were analysed for fatty acids and un‐saponifiable fractions for sterols. The glycolipid fraction contains mainly oleic, palmitic, stearic, palmitoleic, linolenic, linoleic, arachidic, myristic and lauric acids. Phospholipids had similar fatty acids, however their proportions were varying. Traces of cholesterol were observed in the unsaponifiables of glycolipids, which was absent in phospholipids.
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Sreekantaswamy et al. (1981) studied this question.
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