FOOD SCIENCE ›› 0, Vol. ›› Issue (): 24-27.

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Extraction of VE from Pumpkin Seed Oil Sediment by Molecular Distillation

  

  • Received:2011-05-10 Revised:2012-04-24 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