响应面法优化山茶油膜法脱胶工艺研究

Optimization of camellia oil film degumming process using responsesurface methodology

以山茶油为研究对象,采用响应面法(Box-Behnken)设计优化山茶油膜法脱胶的工艺条件。重点探讨膜孔径、混合油浓度、操作压力对膜法脱胶的影响,并比较了膜法脱胶与水化脱胶工艺对山茶油品质的影响。结果表明,山茶油膜法脱胶的最佳工艺条件为膜孔径10 ku、混合油质量分数35%、操作压力0.25 MPa,经膜法脱胶后脱胶率为96.85%。与水化脱胶相比,膜法脱胶后山茶油脱胶脱色脱酸效果显著,脱色率达到51.6%,酸价由15.30 mg·g^(-1)降至0.64 mg·g^(-1)。表明膜法脱胶在山茶油精炼中可以起到较好的脱胶、脱色及脱酸的效果。

Taking camellia oil as the research object,Box-Behnken Response Surface Design was used to optimize the process conditions of camellia oil film degumming in order to explore the effects of membrane pore size,mixed oil concentration,and operating pressure on membrane degumming,and compare the effects of membrane degumming and hydration degumming processes on the quality of camellia oil.The results showed that the optimal process conditions for camellia oil film degumming were membrane pore size 10 ku,mixed oil mass fraction 35%,operating pressure 0.25 MPa,and the degumming rate after film degumming was 96.85%.Compared with hydration degumming,membrane degumming has significant effects on camellia oil degumming,decolorization,and deacidification,with a decolorization rate of 51.6%and the acid value decrease from 15.30 mg·g^(-1) to 0.64 mg·g^(-1).