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Optimization of ultrasound-assisted extraction of okra seed oil by response surface methodology
  
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KeyWord:okra seed oil  ultrasound-assisted extraction  response surface methodology
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JIA Tian, LUO Cangxue, YE Fei  
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Abstract:
      With n-hexane as extraction solvent, okra seed oil was extracted by ultrasound-assisted extraction.Based on single factor experiment,ultrasound-assisted extraction conditions were optimized by response surface methodology with okra seed oil yield as response value. The results showed that the optimal extraction conditions were obtained as follows: material particle size 80 meshes, solid-liquid ratio 1∶?8, ultrasonic power 120 W, extraction time 45 min, extraction temperature 60℃, extraction times twice. Under these conditions, the okra seed oil yield was 17.27% which approached the predictive value.
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