食品科学 ›› 2012, Vol. 33 ›› Issue (18): 1-5.

• 工艺技术 •    下一篇

稻米油分子蒸馏脱酸工艺优化

姜绍通,牛春祥,庞 敏,孛瑞超   

  1. 合肥工业大学生物与食品工程学院,安徽省农产品精深加工重点实验室
  • 收稿日期:2011-07-06 修回日期:2012-07-23 出版日期:2012-09-25 发布日期:2012-09-07
  • 通讯作者: 姜绍通 E-mail:jiangshaotong@yahoo.com.cn
  • 基金资助:

    国家“863”计划重大项目;国家科技支撑计划项目;安徽省自然科学基金项目

Optimization of Deacidification of Rice Bran Oil by Molecular Distillation

  • Received:2011-07-06 Revised:2012-07-23 Online:2012-09-25 Published:2012-09-07

摘要: 采用分子蒸馏技术进行稻米油脱酸研究。在单因素试验的基础上进行Box-Behnken响应曲面试验设计,重点考察温度、转速和进料速度对酸值的影响,得到分子蒸馏脱酸最佳操作条件及二次响应面模型,最佳工艺条件为温度208℃、转速183r/min、进料速度2.05mL/min,此时所得酸值为1.01mg/g KOH。

关键词: 稻米油, 分子蒸馏, 脱酸, 响应曲面法

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

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