Physicochemical properties,fatty acid profile and antioxidant activity of Peanut Oil

The oil from seeds of 4 pea nut (arachis hypogaea l.) varieties: golden,bari 2000,mongphalla,and mongphalli 334 cultivated in arid zones,was subjected to the comparative evaluation of its physicochemical properties,fatty acid profile and antioxidant activity. pea nut seeds were found to be a rich source of crude fat (45.09-51.63 g/100 g dry weight). the physicochemical properties of the oil were investigated as specific gravity (0.915±0.008-0.918±0.008),acid value (3.96±0.22-4.95±0.71 mg koh/g oil),saponification value (226.40±3.59-246.56±2.04 mg koh/g oil) and unsaponifiable matter (3.20±0.23-4.20±0.04 g/100 g oil). the higher amounts of unsaturated fatty acids (82.06-85.93%) were found to be present in each variety. a significant variation (p<0.05) was observed among the varieties regarding crude oil content,saponification value,oleic/linoleic (o/l) ratios,phenolic acid content and total antioxidant content. golden was found to be high in oil content,o/l ratio,antioxidant profile and dpph· scavenging activity but low in iodine value.