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| Deacidification and deodorization of oil-tea camellia seed oil by supercritical CO2 countercurrent extraction |
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| DOI： |
| KeyWord:oil-tea camellia seed oil supercritical CO2 countercurrent extraction deacidification deodorizatio |
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| Abstract: |
| A novel method for deacidification and deodorization of oil-tea camellia seed oil was established. Crude oil-tea camellia seed oil was deacidified and deodorized by supercritical CO2 countercurrent extraction.The results showed that the optimal deacidification and deodorization conditions were obtained as follows：feed at the bottom of extraction column segment Ⅳ，extraction pressure 18.5 MPa ，temperatures of extraction column segmentⅠ，Ⅱ，Ⅲ and Ⅳ 35，50，65℃ and 80℃，flow rate of CO2 15 L/h，pressure of separation kettle 5 MPa， temperature of separation kettle 40℃.Under these conditions，the acid value of oil-tea camellia seed oil reduced by 28.96% after countercurrent extraction for once，and the odor alleviated markedly. Supercritical CO2 countercurrent extraction of oil-tea camellia seed oil had the items of remarkable deacidification and deodorization effects，simple process，protection of active components from being destroyed and keeping natural quality of oil-tea camellia seed oil. |
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