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

• Processing Technology • Previous Articles     Next Articles

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

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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