猕猴桃籽油的超临界二氧化碳萃取研究

本文根据超临界流体萃取技术的基本原理,以猕猴桃籽为原料,采用单因素试验的方法,考察了原料粉碎度、投料量、萃取压力、萃取温度、CO2流量、时间、分离温度等对超临界CO2萃取的影响。气相色谱分析了猕猴桃籽油的组成,α-亚麻酸含量高达60.71%,根据国家标准方法分析了猕猴桃籽油的品质,证明优于溶剂法提取得到的猕猴桃籽油。

Extraction Study on Kiwifruit Seed Oils with Supercritical Carbon Dioxide

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.