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| 山茶油的超临界CO2逆流萃取脱酸脱臭研究 |
| Deacidification and deodorization of oil-tea camellia seed oil by supercritical CO2 countercurrent extraction |
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| DOI： |
| 中文关键词: 山茶油 超临界CO2 逆流萃取 脱酸 脱臭 |
| 英文关键词:oil-tea camellia seed oil supercritical CO2 countercurrent extraction deacidification deodorizatio |
| 基金项目: |
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| 中文摘要: |
| 研究新的山茶油脱酸脱臭方法。采用超临界CO2逆流萃取对山茶毛油进行脱酸脱臭处理。结果显示，最佳的脱酸脱臭工艺条件为：进料位置为萃取柱Ⅳ段底部，萃取压力18.5 MPa，萃取柱Ⅰ、Ⅱ、Ⅲ、Ⅳ段温度分别为35、50、65、80℃，CO2流速15 L/h，分离釜压力5 MPa，分离釜温度40℃。通过1次逆流萃取，山茶油的酸值降低28.96%，臭味显著降低。山茶油的超临界CO2逆流萃取脱酸脱臭效果显著，工艺简单，并能保护其活性成分不被破坏，保持山茶油的天然品质。 |
| 英文摘要: |
| 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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