DefinePK

Abstract

The physico-chemical characteristics and the fatty acid, sterol and triacylglycerol compositions of oil extracted from <i>Solanum elaeagnifolium</i> seeds were determined in this study. The percentage yield of the oil was calculated as 3%. The saponification value (226.15mg KOH g^-1), iodine value (149.1 g/100 g of oil), peroxide value (61.87 mequiv.O₂/kg) and free fatty acid (13.9 mg KOH g^-1) were determined to assess the quality of the oil. The physico-chemical characterization showed that <i>Solanum elaeagnifolium</i> seed oil is unsaturated semi-drying oil, with high saponification and acidic values. The oil contains high levels of Linoleic acid (C_18:2, 67.59%), oleic acid (C_18:1, 16.70%) and palmitic acid (C_16:0, 8.52%). LLL (35.38%), OLL (18.91%), PLL (16.52%) and PLO (13.81%) were the abundant triacylglycerols representing more than 84% of the seed oil (L: linoleic, O: oleic, P: palmitic, S: stearic). The sterol marker, β-sitosterol, accounted for 69.66% of the total sterol content in the seed oil and is followed by campesterol (11.51%), stigmasterol (7.64%) and Δ⁵-avenasterol (5.37%).