A COMPARISON OF VOLATILE COMPOUNDS IN DIFFERENT GENOTYPES OF SESAMUM INDICUM L. BY GC-MS

The aim of the present study was to investigate the oil composition extracted from Sesamum indicum seeds. The oil was extracted from seeds by soxhlet method and analyzed by gas chromatography-mass spectrometry (GC-MS). A total of 84 different components were identified and out of which 12 are fatty acid components. The principal compounds identified and present in all samples were silane, trimethyl[5-methyl-2-(1-me thylethyl)phenoxy]-; silicic acid, diethyl bis (trimethylsilyl)ester; stearic acid; oleic acid; n-Hexadecanoic acid;  myristic acid; indole-2-one 2,3-dihydro-N-hydroxy-4-methoxy-3,3-dimethyl-; cyclotrisiloxane, hexamethyl-; acetamide, N-[-4-(trimethylsilyl)phenyl]-; benzene, 2-[(tert-butyldimethylsilyl)oxy]-1-isopropyl-4-methyl-; benzo[h]quinoline, 2,4-dimethyl-, trichloroacetic acid undec-2-enyl ester and 2-Ethylacridine. Among fatty acids, palmitic acid and oleic acid were identified in highest concentration. In comparison, myristic acid and stearic acid were present in lesser amount. Variation was found between chemical compositions of different genotypes of sesame. The obtained results supported the use of seed oil as edible oil and in pharmaceuticals. This study is also important as identification of volatile compounds in Indian genotypes of Sesamum indicum was done for the first time.