期刊论文

Separation of citral from Litsea Cubeba oil by phase transfer catalysis

中文

食品与机械

1003-5788

2016

32

9

161-165,186

10.13652/j.issn.1003-5788.2016.09.039

2015SK20723:湖南省重点研发计划项目 2015SK2072:湖南省重点研发计划项目 2012NK3103:湖南省科技计划 16B282:湖南省教育厅优秀青年项目

本校为第一机构

以随意甲基化β-环糊精(RM-β-CD)为相转移催化剂,经加成、水解等反应分离山苍子油中的柠檬醛;采用单因素试验和Box-behnken试验设计优化其分离工艺。结果表明:优化工艺条件为反应时间3.3h,RM-β-CD用量为柠檬醛物质的量的0.65%(摩尔分数),反应温度15.0℃,该条件下柠檬醛纯度为96.50%,平均得率为86.60%,该模型预测值与实际值一致。该方法是一种高效、简便的分离山苍子油中柠檬醛的方法。

Randomly methylated- β cyclodextrin （RMfl-CD） was used as phase transfer catalysis to separate eitral from Litsea cubeba oil by addition reaction and hydrolysis reaction. The optimum separa- tion conditions were obtained by single factor experiment design and Box-Behnken experiment design. The purity and yield of citral were 96.50% and 86.60%, respectively, which was gotten under the opti- mum conditions of reaction time 3.3 h, RM-β-CD amount 0.65% （molar fraction） and reaction temperature 15.0 ℃. Predicted value was in accordance with a...