张生祥，赵圆圆，李蔚，杜建明，王丽，史建莉，孙梓洺，刘朗，尚琪，张珍*

（甘肃农业大学食品科学与工程学院,兰州 730070）

摘要：肉桂精油是一种从肉桂树皮中提取的以醛类和酯类为主要成分的挥发性油，由于其易受贮藏条件的影响使得主要成分挥发而导致抑菌和抗氧化效果减弱，因此利用高分子物质包埋肉桂精油形成微胶囊，不仅可以提高肉桂精油的稳定性，还能降低其在贮藏过程中的挥发损耗。本研究以肉桂精油为芯材，β-环糊精为壁材，采用饱和水溶液法制备肉桂精油微胶囊，首先建立了包埋率与芯壁比、壁材浓度、包埋温度、包埋时间四个单因素之间的数学模型，在单因素试验的基础上进行响应面优化试验，从而确定肉桂精油微胶囊的最佳包埋工艺参数。结果表明，芯壁比为1∶8、壁材浓度为29%、包埋温度为51 ℃条件下反应1.9 h后包埋效果最佳，包埋率达到了80.19%，此结果为肉桂精油微胶囊制备工艺提供了有效的参数支持。

关键词：肉桂精油；微胶囊；响应面

中图分类号：TS264.3   文献标识码：A   文章编号：1674-506X（2024）01-0001-0007

Optimization of Preparation Technology of Cinnamon Essential Oil

Microcapsules by Response Surface Method

ZHANG Shengxiang, ZHAO Yuanyuan, LI Wei, DU Jianming, WANG Li, SHI Jianli，

SUN Ziming, LIU Lang, SHANG Qi, ZHANG Zhen*

(College of Food Science and Technology, Gansu Agriculture University, Lanzhou 730070，China)

Abstract:Cinnamon essential oil is a kind of volatile oil extracted from the bark of the cinnamon tree with aldehydes and esters as the main components,because of its susceptibility to the influence of storage conditions makes the main components volatile and leads to the weakening of antibacterial and antioxidant effects,so the use of polymers to encapsulate cinnamon essential oil to form microcapsules not only improves the stability of cinnamon essential oil,but also reduces its volatilization loss during storage. In this study,cinnamon essential oil was used as the core material and β- cyclodextrin as the wall material to prepare cinnamon essential oil microcapsules by the saturated aqueous solution method. Firstly,a mathematical model between the embedding rate and four single factors,namely,the core-to-wall ratio,the concentration of the wall material,the embedding temperature,and the embedding time,was established,and response surface optimization test was carried out on the basis of the single-factor test,so as to determine the optimal parameters of the embedding process of cinnamon essential oil microcapsules.The results showed that the best embedding effect was achieved after 1.9 h of reaction at a core-to-wall ratio of 1:8,a wall material concentration of 29%,and an embedding temperature of 51℃,and the embedding rate reached 80.19%，which provides effective parameter support for the preparation of cinnamon essential oil microcapsules.

Keywords: cinnamon essential oil; microcapsules; response surface

Doi: 10.3969/j.issn.1674-506X.2024.01-001

收稿日期：2022-10-09

基金项目：国家重点研发计划项目“食品安全监测与控制技术的全链条区域综合示范”（2019YFC1606505）

作者简介：张生祥（1996-），男，硕士研究生。研究方向：天然活性成分研究。

*通信作者：张珍（1971-），女，博士，副教授。研究方向：功能性物质研究。