Studies on the Characterization, Lipids and Glyceride Compositions of Sesame (<i>Sesamum indicum</i> linn.) Seed Oil

Abstract

The oil of 3 different sesame (Sesamum indicum linn.) varieties were extracted. The physico-chemical characteristics, lipids and glyceride compositions of oil were studied. The oil content of sesame seed kernels grown under the soil and climatic condition of Bangladesh varied from 42.5-46.2 % depending on the variety. The total lipid extracts were fractionated into three major lipid groups neutral lipids, glycolipids and phospholipids by silicic acid column chromatography. The neutral lipids were averaged to 92.5 % of the total weight of the lipid applied. The oils were fractionated into mono-, di-and triglycerides by silicic acid columb chromatography. The triglycerides varied from 90.3-92.5 %, diglycerides from 2.5-3.2 % and monoglycerides from 2.4-3.1 % depending on the varieties and soil conditions of the areas on which the plant grow. Saturated and unsaturated fatty acids present in the oil were separated and varied from 12.2-15.4 % and 82.9-85.8 % respectively. The pecentage composition of fatty acids was found to be linoleic acid 40.3, oleic acid 44.0, stearic acid 4.3, palmitic acid 9.0 and arachidic acid 0.7. Bangladesh J. Sci. Ind. Res. 42(1), 67-74, 2007