Physicochemical properties of seed oil of the cardinal grape (Vitis vinifera L.) originated in Vietnam

Abstract

Grape (Vitis vinifera L.) seed oil was studied for physicochemical characteristics and chemical composition. Through the gas chromatography-flame ionization (GC-FID) process, the fatty acid composition in the oil was analysed, revealing that the oil is very rich in linoleic (65.3%), linolenic (0.43%), and oleic (17.56%) acid. The physicochemical properties of the oil were also examined, including viscosity (87.8±2.75 cP), acid value (2.25±0.75 mg KOH/g), saponification content (185.5±7.45 mg KOH/g) and iodine value (176.4±5.85 g I2 /100 g). The results also indicated that grape seed is a health-beneficial oil due to the high contents of polyunsaturated fatty acids. This research also provided an important base for further investigations on the production of relevant high-value products, such as analysis of other minor nutrients of grape seed oil originated in Vietnam and study of the beneficial effects of grapeseed oil on human health and its application in the cosmetic industry.