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| 乳化剂对无溶剂体系合成1，3-甘油二酯的影响 |
| Effects of emulsifiers on synthesis of 1,3-diacylglycerol in free-solvent system |
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| DOI： |
| 中文关键词: 无溶剂体系；1，3-甘油二酯 蔗糖脂肪酸酯 |
| 英文关键词:free-solvent system 1,3-diacylglycerol sucrose fatty acid esters |
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| 中文摘要: |
| 在无溶剂体系中，通过脂肪酶Novozyme 435催化甘油解法合成功能性油脂1,3-甘油二酯。在底物摩尔比1∶1（甘油与天然谷物调和油比），脂肪酶添加量8％（占底物质量）条件下，研究酶催化反应过程中不同HLB值的蔗糖脂肪酸酯和反应温度对1,3-甘油二酯生成量的影响。 研究结果表明，选择HLB值为11的亲水性蔗糖脂肪酸酯，在添加量0.5%，反应温度60℃下反应24 h，1，3-甘油二酯生成量最高，为42.61%。 |
| 英文摘要: |
| The functional lipid 1,3-diacylglycerol was synthesized in free-solvent system by glycerolysis with Novozyme 435 as catalyst. Under the conditions of molar ratio of substrates 1∶1（ratio of glycerol to natural grain blend oil） and lipase dosage 8% (based on the mass of substrates), the effects of sucrose fatty acid esters with different HLB values and reaction temperature on the yield of 1,3 - diacylglycerol were studied. The results showed that under the conditions of hydrophilic sucrose fatty acid esters (HLB value 11) dosage 0.5%, reaction temperature 60℃, reaction time 24 h, the yield of 1,3-diacylglycerol was up to 42.61%. |
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