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Optimization of extraction process of avocado oil with papaya juice
  
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KeyWord:avocado oil  papaya juice  enzyme source  extraction
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CHEN Kaijia，CHEN Jinming  
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Abstract:
      With papaya juice as enzyme source, avocado oil was extracted by aqueous enzymatic method. The effects of solid content of papaya juice, ratio of material to liquid, hydrolysis temperature and hydrolysis time on the oil extraction rate were studied by single factor experiment. The extraction process of avocado oil with papaya juice was optimized by orthogonal experiment. The results showed that the optimal extraction conditions were obtained as follows: solid content of papaya juice 3%, ratio of material to liquid 1∶?3, hydrolysis temperature 45?℃ and hydrolysis time 4 h. Under these conditions, the oil extraction rate reached 75.32%. The avocado oil was bright and green with avocado’s unique fragrance and slight papaya fragrance.
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