Optimization of Deacidification of Rice Bran Oil by Molecular Distillation

Abstract

Abstract: The deacidification of rice bran oil was studied using molecular distillation. Based on one-factor-at-a-time experiments, Box-Behnken experimental design and response surface methodology were applied to investigate the effects of temperature, rotation speed and dripping speed on the acid value of rice bran oil. A quadratic regression model was built. The optimal molecular distillation conditions were determined as 208 ℃ of distillation temperature, 183 r/min of rotation speed and 2.05 mL/min of dripping speed. After treatment under these conditions, the acid value of rice bran oil was 1.01 mg/g KOH.

Key words: rice bran oil, molecular distillation, deacidification, response surface methodology

CLC Number:

中图分类号：TS224.6

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