Extraction and physicochemical Study of Raphanus sativus Seeds Oil

Abstract

Extraction of the Raphanus sativus seeds oil was carried out using Soxhlet extractor. The oil percentage in the sample was found to be (33.4%) by weight. The GC-MS analysis showed nine (9) major components: palmatic acid (5.52%), Oleic acid (25.22%), linoleic acid (12.01%), 11-eicosenoic acid (10.66%), eicosanoic acid (1.90%), erucia acid (32.79%), heneicosanoic acid (2.68%), nervonic acid (2.91%) and tetracosanoic acid (1.84%). The pharmaceutical uses and health effects of these major constituents were stated. The physicochemical tests of the oil showed that: the refractive index (1.4580), density (0.685 mg/ml), viscosity (5.01 m Pa.s), saponification value (152.899 mg/g), acid value (3.647 mg/g), Peroxide value (5 m/kg), Iodine value (63.45 g/100 g), Ester value (149.252 mg/g).