In the present study, seven carbohydrates were selected as encapsulant for preparing lutein microencapsulated powders (LMPs). The surface morphology, physical properties, encapsulation efficiency, and thermo‐ and storage stability of LMPs were studied to determine the protective effects of different carbohydrates on microencapsulated lutein during spray drying and storage. Results on powder characteristics indicated that the crystal inhibition of wall material in spray drying was necessary for decent encapsulation efficiency, and higher glass transition temperature of wall material could cause high product yield. In stability assessment, degradation kinetics of different LMPs at two different temperature conditions were analysed, revealing that inulin could provide more effective protection compared with the other carbohydrate. Our results suggested that the different carbohydrates had great influence on the quality of LMPs, and inulin could be considered as an alternative for the generation of LMPs to enhance storage stability and extend shelf life of this bioactive product.

中文翻译：

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不同碳水化合物作为壁材料对喷雾干燥微胶囊叶黄素的粉末特性，包封效率，稳定性和降解动力学的影响

在本研究中，选择了七种碳水化合物作为密封剂，以制备叶黄素微囊化粉末（LMP）。研究了LMP的表面形态，物理性质，包封效率以及热稳定性和储存稳定性，以确定在喷雾干燥和储存过程中不同碳水化合物对微囊叶黄素的保护作用。粉末特性的结果表明，喷雾干燥中壁材料的晶体抑制对于适当的包封效率是必要的，并且壁材料的玻璃化转变温度较高会导致高产品收率。在稳定性评估中，分析了两种不同温度条件下不同LMP的降解动力学，发现菊粉比其他碳水化合物可提供更有效的保护。