山毛豆油磷酸辅助脱胶工艺条件优化

Optimizing Process Conditions for Phosphoric Acid-assisted Degumming of Tephrosia vogelii Hook f. Seed Oil

目的:研究酸种类、酸添加量、加水量、脱胶温度、搅拌时间对山毛豆毛油脱胶率的影响。方法:在单因素试验基础上,利用响应面分析法对山毛豆毛油脱胶工艺进行优化。结果:得到山毛豆酸辅助脱胶最佳工艺条件为磷酸添加量2.47g/kg、加水量4.1%、脱胶温度62℃、搅拌时间45min。该条件下山毛豆毛油脱胶率为92.48%,与模型预测值91.5256%接近,脱胶山毛豆油中磷脂含量为0.095%。结论:磷酸辅助脱胶技术可对山毛豆毛油中的磷脂进行有效脱除。

Objective：To optimize process conditions for the degumming of Tephrosia.vogelii Hook f.seed oil such as acid kind and amount,water amount,temperature and stirring time for maximizing degumming rate.Methods：On the basis of single factor experiments,phosphoric acid amount,water amount,temperature and stirring time were optimized by response surface analysis.Results：Phosphoric acid was found to be the best degumming agent for T.vogelii Hook f.seed oil.The optimum degumming conditions were determined as follows：stirring at 62℃for 45 min in the presence of 2.47 g/kg phosphoric acid and 4.1%water.Under these conditions,the actual degumming rate was 92.48%（the degummed oil contained 0.095%phosphatide）, close to the predicted value of 91.5256%.Conclusion：The phosphoric acid aided degumming process can effectively remove phospholipid from T.vogelii Hook f.seed oil.