Comparison of the Three Extracting Methods for Kiwi Fruit Seed Oil

Objective to investigate the influences of the mechanical compression, the extraction solvent and the supercritical CO2 extraction to the extraction rate, the fatty acid composition and physicochemical properties of the kiwi fruit seed oil. The result indicated that, the kiwi fruit seed fat is 29.20%, and with the mechanical compression, the extraction solvent and the supercritical CO2 extraction, the kiwi fruit seed oil extraction rate respectively is 20.0%, 26.9% and 28.3%. The components and physicochemical properties of the oil with the three methods are similar. But the acid value of the oil with the mechanical compression is higher than other two. and the quality of the oil is lower than the oil which are gotten with the other two methods. The supercritical CO2 extraction is the optimal method for the kiwi seeds oil extacting.