Ke Qinfei, Tang Hong, Zhang Yunchong, Kou Xingran
Collaborative Innovation Center of Fragrance Flavour and Cosmetics, School of Perfume and Aroma Technology (Shanghai Research Institute of Fragrance & Flavour Industry), Shanghai Institute of Technology, Shanghai 201418, China.
Collaborative Innovation Center of Fragrance Flavour and Cosmetics, School of Perfume and Aroma Technology (Shanghai Research Institute of Fragrance & Flavour Industry), Shanghai Institute of Technology, Shanghai 201418, China.
J Colloid Interface Sci. 2025 Dec;699(Pt 1):138102. doi: 10.1016/j.jcis.2025.138102. Epub 2025 Jun 10.
Due to the low boiling point, volatilization, sensitivity to heat, and poor solubility in water, it is difficult to ensure that the aroma of products can be stably and lastingly released. Therefore, the microencapsulation of flavor and fragrance can achieve stabilization to some extent. Temperature-responsive microcapsules are a kind of micro-containers that can achieve rapid release of core materials by regulating temperature. They can not only prolong the retention time of aroma, but also realize the smart release of aroma substances by simply changing the temperature. However, since there aren't so many works about the industrialization of temperature-responsive aroma microcapsules, the applications of these microcapsules in products may face certain challenges. In this review, firstly, the classification of wall materials of temperature-responsive aroma microcapsules is summarized and sorted out. Then, the preparation methods of temperature-responsive aroma microcapsules are described, and the release mechanisms of these microcapsules made of colloidal materials are mainly discussed. According to the properties of temperature-responsive materials, the release mechanism of aroma microcapsules is explained from five aspects: phase transition temperature, cloud point, polymer molecular chain conformation transition, glass transition temperature, and Avrami's equation. In the last part of this review, challenges and prospects faced by temperature-responsive aroma microcapsules in research and applications are proposed.
由于沸点低、易挥发、对热敏感且在水中溶解度差，难以确保产品香气能稳定持久释放。因此，香料香精的微胶囊化在一定程度上可实现稳定化。温敏微胶囊是一种可通过调节温度实现芯材快速释放的微容器。它们不仅能延长香气保留时间，还能通过简单改变温度实现香气物质的智能释放。然而，由于关于温敏香气微胶囊工业化的研究较少，这些微胶囊在产品中的应用可能面临一定挑战。在本综述中，首先对温敏香气微胶囊壁材的分类进行了总结梳理。然后描述了温敏香气微胶囊的制备方法，并主要讨论了由胶体材料制成的这些微胶囊的释放机制。根据温敏材料的性质，从相变温度、浊点、聚合物分子链构象转变、玻璃化转变温度和阿弗拉米方程五个方面解释了香气微胶囊的释放机制。在本综述的最后部分，提出了温敏香气微胶囊在研究和应用中面临的挑战与前景。
