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Effect of degumming on removal of benzopyrene in fragrant rapeseed oil
  
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KeyWord:fragrant rapeseed oil  degumming  benzopyrene
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HU Zhaotun，ZHANG Wei，LI Xiang,etc  
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Abstract:
      The crude fragrant rapeseed oil with excessive benzopyrene was selected as raw material. The effects of degumming standing time, degumming temperature, water dosage and phosphoric acid dosage on the removal of benzopyrene in fragrant rapeseed oil were analyzed in the low temperature degumming process by single factor experiment and orthogonal experiment. The results showed that the optimal conditions of the degumming process were obtained as follows: degumming standing time 60 min, degumming temperature 20?℃, water dosage 3%, phosphoric acid dosage 0.1%. Under the optimal conditions, the removal rate, content of benzopyrene and water content in fragrant rapeseed oil were 83%, 2.04 μg/kg and 0.15% respectively. After degumming, the rapeseed oil had a strong flavor and the 280?℃ heating test was qualified.
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