麦胚中天然维生素E的SFE-CO_2最佳提取工艺的研究

Optimum Processing Conditions of Natural V_E Extracted from Wheat Germ in SFE-CO_2

本研究以小麦胚芽为原料 ,利用超临界流体萃取技术从麦胚中提取天然维生素E。将萃取压力、萃取温度和CO2 流量作为中心组合旋转设计的变量 ,进行响应曲面分析 ,确定了其最佳工艺参数和条件。结果表明 :麦胚中天然维生素E的超临界CO2 提取的最佳工艺参数为萃取压力为2 9 1MPa ,萃取温度为 316K ,CO2 流量为 2ml/min。

Using wheat germ as material,this paper extracted natural vitamin E by supercritical fluid extracting technology. Taking the extracting pressure, extracting temperature and flow rate of carbon dioxide as the variables of central composite rotate design, the results of response surface analysis showed that the optimum extracting parameters of SFE-CO 2 of natural vitamin E in wheat germ was the extracting pressure 29.1 MPa extracting temperature 316 K and flow rate of carbon dioxide 2 ml/min.