食品科学 ›› 2012, Vol. 33 ›› Issue (12): 24-27.doi: 10.7506/spkx1002-6630-201212005

• 工艺技术 • 上一篇    下一篇

分子蒸馏法提取南瓜籽油脚中VE

刘 雷,陈 星,吴 琼,刘 博   

  1. 长春大学 农产品深加工吉林省普通高校重点实验室
  • 出版日期:2012-06-25 发布日期:2012-07-27
  • 基金资助:
    吉林省教育厅“十二五”科学技术研究项目(吉教科合字2011 第220 号)

Extraction of VE from Pumpkin Seed Oil Sediment by Molecular Distillation

LIU Lei,CHEN Xing,WU Qiong,LIU Bo   

  1. (Key Laboratory of Agricultural Products Processing of Jilin Province Ordinary University, Changchun University, Changchun 130022, China)
  • Online:2012-06-25 Published:2012-07-27

摘要: 采用响应面试验设计,以温度、真空度、刮板速度为试验因素,以VE得率为响应值,建立数学模型,优化分子蒸馏法提取南瓜籽油脚中VE的工艺条件。结果表明,最佳提取条件为温度220.26℃、真空度0.11mbar、刮板速度649.3r/min。在此条件下,VE得率的模型的预测值83.31%,验证实验得到的VE得率为84.25%。所得回归模型拟合情况良好,达到设计要求。

关键词: 响应面法, 分子蒸馏, 南瓜籽油脚, VE

Abstract: Response surface methodology was used to optimize VE extraction from pumpkin seed oil sediment. A mathematical model for VE yield as a function of extraction temperature, vacuum degree and scraper speed was built. The optimal extraction conditions were extraction temperature of 220.26 ℃, vacuum degree of 0.11 mbar and scraper speed of 649.3 r/min. Under these extraction conditions, the predicted extraction rate of VE was 83.31%, which was close to the actual yield of 84.25%. Therefore, the regression model revealed excellent fitting degree and could meet the design requirements.

Key words: response surface methodology, molecular distillation, pumpkin seed oil sediment, vitamin E

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