超临界CO-2萃取茶叶籽油

Study on Extraction Technology of Tea Seed Oil by Supercritical CO_2

采用微波加热茶叶籽仁粉,用超临界CO2萃取茶叶籽油,探讨了超临界CO2萃取茶叶籽油适宜工艺参数。实验结果表明:在萃取温度60℃、萃取压力30 MPa,萃取时间100 min,CO2流量45～55 kg/h条件下,油脂提取率为94.1%,并测定了茶叶籽油的理化性质及脂肪酸组成。

In this paper, microwave is used to bake tea seed kernel, and the optimal parameter of tea seed oil extraction process by supercritical CO2 is studied. Experimental results show that the optimal conditions are： extrac- tion temperature 60℃ , extraction pressure 30MPa, extraction time 100 min, CO2 flow rate 45 - 55 kg/h, and the ex- traction rate is 94.1%. The physical and chemical properties and the fatty acid composition of the tea seed oil are de- termined.