A COMPARATIVE ANALYSIS OF PHYSICAL AND CHEMICAL PROPERTIES OF POMEGRANATE AND GRAPE SEED OILS
Keywords:
Pomegranate, grape, seed oil, fatty acids, gas chromatography, saponification number, iodine number, peroxide numberAbstract
Pomegranate (Punica granatum L.) and grape (Vitis vinifera L.) seed oils have gained attention in
recent years due to their various potential health benefits. In this study, we aimed to compare the physical and
chemical properties of pomegranate and grape seed oils obtained through soxhlet extraction. Refractive index,
saponification number, iodine number, and peroxide number were determined to assess the quality and
stability of the oils. Additionally, the fatty acid composition of the oils was analyzed using gas
chromatography. The study found that pomegranate seed oil contained 30.12% punicic acid, 28.92% linoleic
acid, 19.01% oleic acid, 10.12% palmitic acid, and 3.92% beheric acid, while grape seed oil contained 66.88%
linoleic acid, 27.53% oleic acid, 3.77% stearic acid, and 0.31% linolenic acid. Pomegranate seed oil was
observed to have antioxidative, anticarcinogenic, and antilipidemic properties, while grape seed oil was found
to be a source of specialty lipids, particularly linoleic acid. Both oils have the potential for health and
nutritional assessment opportunities, making them important food products for human health.