| 舒象满,李加兴,王小勇，等.杜仲籽油亚临界萃取工艺优化及脂肪酸组成分析[J].中国油脂,2015,40(6):.[SHU Xiangman,LI Jiaxing,WANG Xiaoyong,etc.Optimization of subcritical extraction of Eucommia ulmoides seed oil and its fatty acid composition analysis[J].China Oils and Fats,2015,40(6):.] |
| 杜仲籽油亚临界萃取工艺优化及脂肪酸组成分析 |
| Optimization of subcritical extraction of Eucommia ulmoides seed oil and its fatty acid composition analysis |
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| DOI： |
| 中文关键词: 杜仲籽油 亚临界萃取 脂肪酸组成 |
| 英文关键词:Eucommia ulmoides seed oil subcritical extraction fatty acid composition |
| 基金项目: |
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| 摘要点击次数: 1058 |
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| 中文摘要: |
| 以杜仲籽为原料，4号溶剂为提取剂，采用单因素试验和正交试验对杜仲籽油的亚临界萃取工艺进行优化。重点探讨料液比、萃取温度、萃取时间、萃取压力、萃取次数对杜仲籽粕残油率的影响，并采用GC分析杜仲籽油的脂肪酸组成。结果表明：杜仲籽油的最佳亚临界萃取工艺条件为料液比1∶5、萃取温度35℃、萃取时间1.0 h、萃取压力05 MPa、萃取次数3次，该条件下杜仲籽粕残油率为0.85%；杜仲籽油的主要脂肪酸为亚麻酸、亚油酸、油酸、棕榈酸和硬脂酸，其不饱和脂肪酸含量在90%以上。 |
| 英文摘要: |
| With Eucommia ulmoides seed as the raw material and No. 4 solvent as extractant, the subcritical extraction technology of Eucommia ulmoides seed oil was optimized by single factor experiment and orthogonal experiment. The effects of ratio of material to liquid, extraction temperature, extraction time, extraction pressure and extraction times on residual oil of Eucommia ulmoides seed meal were mainly studied, and the fatty acid composition of Eucommia ulmoides seed oil was analyzed by GC. The results showed that the optimal subcritical extraction conditions of Eucommia ulmoides seed oil were obtained as follows: ratio of material to liquid 1∶5, extraction temperature 35℃, extraction time 10 h, extraction pressure 0.5 MPa and extraction times three. Under these conditions, the residual oil in Eucommia ulmoides seed meal was 0.85%. Linolenic acid, linoleic acid, oleic acid, palmitic acid and stearic acid were the main fatty acids in Eucommia ulmoides seed oil,and the content of unsaturated fatty acids was higher than 90%. |
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