低共熔溶剂萃取精油脱萜烯工艺
Extractive Deterpenation of Essential Oils Using Propyl Glycol-Based Deep Eutectic Solvents
程海梅 1章柯 1李纬博 2丁诚 2余汉谋2
作者信息
- 1. 广州工业智能研究院(广州 511458)
- 2. 深圳昱朋科技有限公司(深圳 518110)
- 折叠
摘要
针对精油中萜烯导致的溶解度低、易氧化变质等问题,探索精油脱萜烯工艺,提高精油质量,采用丙二醇和乙酰丙酸合成DES为萃取剂,结合单因素试验和Box-Behnken响应曲面分析法,对精油脱萜烯工艺进行优化,考察HBD/HBA摩尔比、剂油质量比和DES含水量3个因素的影响.结果表明,3个因素对精油脱萜烯性能影响的重要性为DES含水量＞剂油质量比＞HBD/HBA摩尔比.HBD/HBA摩尔比为2.5,剂油质量比为4,DES含水量为0.00时,芳樟醇的分配系数为1.196,选择性值为29.436,脱萜烯后的提取物溶解在甘油和丙二醇中香气干净馥郁,无杂气.
Abstract
In response to the problems of low solubility and easy oxidation and deterioration caused by terpenes in essential oils,explore the deterpenation of essential oils to improve their quality.Using propylene glycol and levulinic acid to synthesize DES as the extractant,the deterpenation of essential oils was optimized by single factor experiments and Box-Behnken response surface analysis,and the effects of HBD/HBA molar ratio,solvent oil mass ratio,and DES water content were investigated.The results showed that the importance of three factors on the deterpenation of essential oil was as follows:DES water content＞solvent to oil mass ratio＞HBD/HBA molar ratio.When HBD/HBA molar ratio was 2.5,solvent to oil mass ratio was 4,and DES water content was 0.00,the distribution coefficient of linalool was 1.196,and the selectivity value was 29.436.After extractive deterpenation of essential oils,the extract dissolved in glycerol and propylene glycol had a clean and fragrant aroma without impurities.
关键词
低共熔溶剂/溶剂萃取/脱萜烯/响应面分析Key words
deep eutectic solvents/liquid-liquid extraction/deterpenation/response surface analysis引用本文复制引用
基金项目
广州市基础与应用研究项目(2023A04J0697)
出版年
2024
NETL
NSTL
维普
万方数据