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Optimization of flash-extraction of oil from Chaenomeles speciosa Nakai seed and comparison of oil yields from different origins
  
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KeyWord:Chaenomeles speciosa Nakai seed oil  flash-extraction  response surface methodology  different origins
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FENG Xuehua, TAO Ali，XIE Wei  
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Abstract:
      With ratio of solvent to material, extraction voltage and extraction time as investigation factors, oil yield as investigation index, the flash-extraction process of oil from Chaenomeles speciosa Nakai seed was optimized by response surface methodology. The oil yields from different origins were compared. The results showed that the optimal extraction process conditions of Chaenomeles speciosa Nakai seed oil were obtained as follows: ratio of solvent to material 12∶?1, extraction voltage 175 V and extraction time 110 s. Under these conditions, the oil yield of Chaenomeles speciosa Nakai seed was 25.15%. By comparison, the oil yield of Chaenomeles speciosa Nakai seed in Yunnan area was the highest, followed by Shaanxi Baihe and Anhui Xuancheng, which in Chongqing Qijiang was the lowest.
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