Zhang Henan, Zhao Lichun, Song Erli, Wang Jiajia, Meng Si, Wang Tao. Optimization of Deacidification Process of Rice Bran Oil with High Acid Value by Physical Distillation[J]. AGRICULTURAL ENGINEERING, 2017, 7(4): 89-91.
Citation: Zhang Henan, Zhao Lichun, Song Erli, Wang Jiajia, Meng Si, Wang Tao. Optimization of Deacidification Process of Rice Bran Oil with High Acid Value by Physical Distillation[J]. AGRICULTURAL ENGINEERING, 2017, 7(4): 89-91.
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Optimization of Deacidification Process of Rice Bran Oil with High Acid Value by Physical Distillation

    Abstract
  • Because of role of lipase，rice bran oil is high in acid value，dark in color and difficult in refining.There are many disadvantages in chemical deacidification，such as low refining rate，residual additives，high refining cost and many side effects.Physical distillation acid refining of rice bran oil with high acid value has advantage highlights.Refining effect of distillation deacidification was studied，and change of acid value and color after deacidification was investigated.Rice bran oil distillation deacidification process condition was optimized through single factor and orthogonal experiment.Orthogonal test was based on vacuum，distillation temperature and distillation time.Optimum conditions were vacuum degree 90 kPa，time 1.7 h，distillation temperature 215 ℃.
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