The aim of the study to investigate fatty acids (FAs) of Pleurotus ostreatus and Russula delica in Total Lipid (TL), Triacylglycerol (TG) and Phospholipid (PL) fractions. The major FAs of TL, TG, PL in both species were palmitic acid (PA), oleic acid (OLA), and linoleic acid (LA). In both species, total PUFA amounts were found to be higher than total monounsaturated fatty acids (MUFA) and total saturated fatty acids (SFA) in TL, TG and PL fractions. Also, insufficiently studied cytotoxic activity (using prostate carcinoma (PC-3) cell lines) of these mushrooms were investigated by using various solvent systems. Ethyl acetate extract of Pleurotus ostreatus and Russula delica showed significant inhibitory value at the concentrations of 520-530 μg/ml (99.45-92.82%) against PC-3 cell lines with the half-maximal inhibitory concentration (IC50); 274.53-297.77 μg/mL respectively. The present study is a guide for biochemical and nutritional values of both species and can be useful for further investigation on pharmacological applications.
Key words: Russula delica, pleurotus ostreatus, fatty acids, cytotoxic activity, PC-3 cell lines
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