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| 逆相转移催化合成葵花籽油蔗糖酯 | |
| 引用本文： | 樊国栋,康丽,林振宇.逆相转移催化合成葵花籽油蔗糖酯[J].中国油脂,2012,37(4):36-39. |
| 作者姓名： | 樊国栋 康丽 林振宇 |
| 作者单位： | 1. 教育部轻化工助剂化学与技术重点实验室,陕西科技大学化学与化工学院,西安710021;福州大学食品安全分析与检测技术教育部重点实验室,福州350002 2. 教育部轻化工助剂化学与技术重点实验室,陕西科技大学化学与化工学院,西安710021 3. 福州大学食品安全分析与检测技术教育部重点实验室,福州,350002 |
| 基金项目： | 陕西省科技攻关项目(2008K07-32);陕西省教育厅专项科研计划项目(08JK228);食品安全分析与检测技术教育部重点实验室(福州大学)开放基金资助项目(FS10003);陕西科技大学研究生创新基金 |
| 摘 要： | 先由食用葵花籽油和甲醇在碱性催化剂条件下酯交换反应制得脂肪酸甲酯,然后脂肪酸甲酯与蔗糖通过水溶剂法,以逆相转移催化剂DMAP催化制备蔗糖脂肪酸酯.通过对酯糖摩尔比、催化剂用量、反应温度、反应时间进行考察,确定最佳合成条件为:酯糖摩尔比2.5∶1,催化剂用量4％,反应温度 85℃,反应时间7h.在最佳合成条件下,葵花籽油脂肪酸甲酯的转化率高达65.32％,所得产品具有良好的表面活性,其临界胶束质量浓度(CMC)为6.5 g/L,表面张力为27.41 mN/m,乳化力为79 s,浊点指数为7.2 mL,HLB值为10.1,碘值(Ⅰ)为126.9 g/100 g. |
| 关 键 词： | 非离子表面活性剂 蔗糖酯 逆相转移催化 理化性能 |
Synthesis of sunflower oil sucrose ester catalyzed by inverse phase-transfer catalyst |
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| FAN Guodong , KANG Li , LIN Zhenyu.Synthesis of sunflower oil sucrose ester catalyzed by inverse phase-transfer catalyst[J].China Oils and Fats,2012,37(4):36-39. | |
| Authors: | FAN Guodong KANG Li LIN Zhenyu |
| Affiliation: | 1.Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry Ministry of Education, College of Chemistry and Chemical Engineering,Shaanxi University of Science and Technology, Xi’an 710021,China;2.Key Laboratory of Food Safety Analysis and Detection Technology for Ministry of Education,Fuzhou University,Fuzhou 350002,China) |
| Abstract: | Using water solvent method,sunflower oil sucrose ester was synthesized by inverse phase-transfer catalyst DMAP with sucrose and fatty acid methyl ester prepared by ester-exchange method in the presence of basic catalyst from sunflower oil and methanol.The effects of molar ratio of fatty acids methyl ester to sucrose,catalyst dosage,reaction temperature and reaction time were studied.The results showed that the optimal conditions were as follows: molar ratio of fatty acids methyl ester to sucrose 2.5∶ 1,catalyst dosage 4%,reaction temperature 85 ℃ and reaction time 7 h.Under the optimal conditions,the conversion rate of sunflower oil fatty acid methyl ester could reach 65.32%.The final product had good surface activity,the critical micelle concentration(CMC) was 6.5 g/L,surface tension was 27.41 mN/m,emulsifying power was 79 s,water count was 7.2 mL,HLB was 10.1 and iodine value was 126.9 gI/100 g. |
| Keywords: | nonionic surfactant sucrose ester inverse phase-transfer catalysis physicochemical properties |
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