关键词: 猕猴桃籽油, 超临界CO2, 萃取, &alpha, -亚麻酸

Abstract: Based on the fundamental principle of supercritical fluid extraction, kiwifruit seeds were taken as experimentalmaterials of extraction.The effect factorsy grinding granularity, material weights ,extracting pressure,extracting temperature,extracting time,carbon dioxide flow rate,separating temperture on the supercritical extraction were worked out via single factorexperiments. The components of kiwifruit seed oil were separated and indentified by gas chromatograph (GC), as α-linolenicacid content 60.71%.Finally the quality of kiwifruit seed oils was analyzed according to the national criterion.Oils extracted bysupercritical carbon dioxide was in higher quality than those by solvent extraction.

Key words: kiwifruit seed oil, supercritical carbon dioxide, extraction, α-linolenic acid