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| 响应面优化大豆粕合成N-油酸酰基复合氨基酸工艺研究 |
| Optimization of synthesis of N-oleic acid acyl composite amino |
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| DOI： |
| 中文关键词: 大豆粕 N-油酸酰基复合氨基酸 响应面法 |
| 英文关键词:soybean meal N-oleic acid acyl composite amino acid response surface methodology |
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| 中文摘要: |
| 以大豆粕为原料，采用加压酸解的方法制备复合氨基酸液，再与油酸酰氯反应合成N-油酸酰基复合氨基酸表面活性剂。采用单因素实验研究了复合氨基酸液与油酸酰氯体积比、pH、反应温度、丙酮与复合氨基酸液体积比、反应时间对产物产率的影响，利用响应面法优化工艺条件，并对酰化产物的表面活性性能进行测定。结果表明：大豆粕合成N-油酸酰基复合氨基酸最优工艺条件为复合氨基酸液与油酸酰氯体积比2.66∶?1、pH 10.2、反应温度31.8?℃、丙酮与复合氨基酸液体积比1.26∶?1、反应时间2 h，在最优条件下，产物产率为92.02%，产物表面活性性能良好。 |
| 英文摘要: |
| The soybean meal was hydrolyzed into composite amino acids by acidolysis under pressure, then N-oleic acid acyl composite amino acids was synthesized by oleic acid chloride and composite amino acids. The effects of volume ratio of composite amino acids to oleic acid chloride, pH, reaction temperature, volume ratio of acetone to composite amino acids and reaction time on the product yield were researched by single factor experiment. The conditions were optimized by response surface methodology, and the surface activity of the product was determined. The results showed that the optimal synthesis conditions of N-oleic acid acyl composite amino acids were obtained as follows: volume ratio of composite amino acids to oleic acid chloride 2.66∶?1, pH 10.2, reaction temperature 31.8?℃, volume ratio of acetone to composite amino acids 1.26∶?1 and reaction time 2 h. Under these conditions, the product yield was 92.02%, and the surface activity of the product was superior. |
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