| 摘要: |
| 以甲酯化豆油脱臭馏出物为原料，利用超临界CO2萃取技术浓缩α-VE，探讨萃取条件对α-VE和豆油脱臭饱出物中油脂萃取效果的影响。结果表明，萃取压力和萃取温度对α-VE和脂肪酸在超临界二氧化碳中的萃取效果有非常显著的影响，而二氧化碳流量对萃取效果影响较小。在萃取温度308 K，萃取压力18 MPa,二氧化碳流量6～12 L/min条件下，可以获得较高的萃取得率和α-VE含量。 |
| 关键词: 豆油脱臭馏出物 超临界CO2萃取 萃取条件 α-VE 脂肪酸 |
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| 基金项目:江苏省自然科学基金资助项目(BK99112)；高等学校博士学科点专项基金资助项目(97029901) |
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| Studies on extracting α-VE from soybean deodorized sludge using supercritical CO2 extraction method |
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| Abstract: |
| Using methylated soybean deodorized sludge as materials to extract α-VE by supercritical CO2 method,the influence of extraction conditions on concentraction of α-VE and several main fatty acids in extracts and remainings was investigated.The results showed that extraction pressure and extraction temperature had conspicuous effects on solubility of α-VE and fatty acids in supercritical CO2 while CO2 flow volume had litte effect on extraction result.At extraction temperature 308 K,pressure 18 MPa,CO2 flow volume 6-12 L/min,a relatively high extraction rate and high α-VE concentraction can be obtained. |
| Key words: soybean deodorized sludge supercritical CO2 extraction extraction conditions α-Vitamin E fatty acids |
