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喷雾干燥法制备肉豆蔻精油微胶囊及表征

2024-06-17盖旭姜子涛韩希凤周园

中国调味品 2024年6期

盖旭 姜子涛 韩希凤 周园

摘要:以阿拉伯胶和麦芽糊精为复合壁材,以肉豆蔻精油为芯材,采用喷雾干燥法制备微胶囊,并对其形态、释放性和吸湿性进行表征。结果表明,以包埋率为指标,经Box-Behnken Design响应面实验优化的微胶囊制备工艺为壁材浓度2.01%、芯壁比0.92、进风口温度185.56 ℃,此时预测包埋率为79.53%。3个因素的影响程度为芯壁比>进风口温度>壁材浓度。包埋后的微胶囊呈规则饱满的球形,粒径分布于5~9μm,室温下在水中释放性良好,并且贮藏时具有一定的吸湿性。

关键词:肉豆蔻精油;阿拉伯胶;麦芽糊精;喷雾干燥;微胶囊;响应面法

中图分类号:TS224.4

文献标志码:A

文章编号:1000-9973(2024)06-0189-06

Preparation of Microcapsules of Myristica fragrans Houtt. Essential Oil

by Spray Drying Method and Their Characterization

GAI Xu1, JIANG Zi-tao1,2*, HAN Xi-feng1, ZHOU Yuan1

(1.School of Food Engineering, Tianjin Tianshi College, Tianjin 301700, China; 2.School of

Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China)

Abstract: With Arabic gum and maltodextrin as the composite wall materials and Myristica fragrans Houtt. essential oil as the core material, microcapsules are prepared by spray drying method, and the morphology, release property and hygroscopicity are characterized. The results show that with the embedding rate as the index, the preparation process of microcapsules optimized by Box-Behnken Design response surface experiment is wall material concentration of 2.01%, core material-wall material ratio of 0.92 and inlet temperature of 185.56 ℃, at this time, the predicted embedding rate is 79.53%. The influence degree of the three factors is core material-wall material ratio>inlet temperature>wall material concentration. After embedding, the microcapsules appear as regular and full spherical shapes, and the particle size ranges from 5μm to 9μm.The microcapsules have good release property in water at room temperature and have certain hygroscopicity during storage.

Key words: Myristica fragrans Houtt. essential oil; Arabic gum; maltodextrin; spray drying; microcapsules; response surface method

收稿日期:2023-11-23

基金项目:天津市教委科研计划项目(2023KJ287)

作者简介:盖旭(1986—),女,讲师,硕士,研究方向:食品加工与分析、微胶囊。

*通信作者:姜子涛(1956—),男,教授,博士,研究方向:食品分析与添加剂。

肉豆蔻精油是从调味香料肉豆蔻(Myristica fragrans Houtt.)的干燥种仁中提取的具有芳香气味、与水不相溶、但可溶于乙醚、氯仿、乙醇等有机溶剂的挥发性油状液体[1]。研究表明,其主要分为肉豆蔻醚、甲基丁香酚、桧烯、α-蒎烯、β-蒎烯、榄香素及萜烯醇类等物质[2-4],因而具有良好的抗氧化、抗菌和抗癌等功能,在食品和医药领域具有重要的开发利用价值[5-7]。

微胶囊化技术可以减少芯材与外界氧气、光、水分等的反应,有效保护精油等挥发性物质的有效成分,使其稳定性增强,释放周期延长[8-10]。近年来,关于制备肉豆蔻精油微胶囊的研究不多,在国内包埋的壁材局限于β-环糊精、辛烯基琥珀酸淀粉酯和麦芽糊精等 [11-12];在国……

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