| 秦杰，孙聪，邹孝强，金青哲，王兴国.咪唑类离子液体对酶法醇解制备脂肪酸酯的影响研究[J].中国油脂,2017,42(6):.[QIN Jie, SUN Cong, ZOU Xiaoqiang, JIN Qingzhe, WANG Xingguo.Influence of imidazolium based ionic liquids on enzymatic alcoholysis preparation of fatty acid ester[J].China Oils and Fats,2017,42(6):.] |
| 咪唑类离子液体对酶法醇解制备脂肪酸酯的影响研究 |
| Influence of imidazolium based ionic liquids on enzymatic alcoholysis preparation of fatty acid ester |
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| DOI： |
| 中文关键词: 离子液体 脂肪酸酯 极性 疏水性 氢键碱度 黏度 |
| 英文关键词:ionic liquids fatty acid ester polarity hydrophobicity hydrogen-bond basicity viscosity |
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| 中文摘要: |
| 在不同阴离子组成的咪唑类离子液体体系中，以含有不同脂肪酸组成的油脂与醇类为反应原料，酶法醇解制备脂肪酸酯，考察了离子液体种类对制备脂肪酸酯的影响，并探索离子液体的主要性质对脂肪酸酯制备的影响规律。结果表明：在疏水阴离子组成的离子液体中，脂肪酸酯的生成量较高，且阴离子的影响较为明显。离子液体的性质与脂肪酸酯的生成量有一定的相关性，且是共同作用的结果，除某些特例外，随着离子液体极性值和氢键碱度的增加，脂肪酸酯的生成量整体呈现下降趋势；随着离子液体疏水性值的增加，脂肪酸酯的生成量增加；离子液体黏度与脂肪酸酯没有明显的相关性，但高黏度会影响脂肪酸酯的生成量。另外，此结论适用于各种脂肪酸组成的油脂。 |
| 英文摘要: |
| With oil consisted of different fatty acids and alcohol as raw materials, fatty acid ester was prepared by enzymatic alcoholysis in system of imidazolium based ionic liquids consisted of different anions. The influence of ionic liquids types on preparation of fatty acid ester was investigated. And the influence of major properties of ionic liquids on preparation of fatty acid ester was also explored. The results showed that the production of fatty acid ester was higher in ionic liquids based hydrophobic anions, and the influence of anions was apparent. The production of fatty acid ester had certain correlation with the properties of ionic liquids and it was the result of combined action. Getting rid of some special samples, the production of fatty acid ester generally decreased with the polarity (ENT) value and hydrogen-bond basicity (尾) increasing, and increased with the hydrophobicity (logP) value increasing. There was no significant correlation between the production of fatty acid ester and viscosity, but higher viscosity could affect the production of fatty acid ester. In addition, the results could apply to oils consisted of other fatty acids. |
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