Ultrasound-assisted microwave demulsification of rapeseed oil prepared by aqueous enzymatic method
  
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KeyWord:rapeseed oil  aqueous enzymatic method  emulsion  ultrasound-assist  microwave  demulsification
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WEI Songli, LIU Yuanfa, CAO Peirang,etc  
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Abstract:
      The emulsion produced during aqueous enzymatic extraction of rapeseed oil was treated by microwave for demulsification assisted by ultrasound. The process conditions of ultrasound-assisted microwave demuldification were optimized by single factor experiment. The results showed that the optimal demulsification conditions were obtained as follows: volume fraction of emulsion 60%, pH 5.0, ultrasonic power 400 W, ultrasonic temperature 40?℃, ultrasonic treatment time 30 s, microwave power 600 W, and microwave treatment time 70 s. Under the optimal conditions, the demulsification rate of rapeseed oil emulsion was 9630%±1.20%.
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