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- Title
铁观音茶精油微胶囊化制备及结构表征.
- Authors
操晓亮; 薛婉茹; 庄志雄; 谢李玲; 叶淑芳; 孟 春; 杨娟娟; 张 峰; 洪 晶
- Abstract
In order to improve the stability of Tie Guanyin essential oil, microcapsules of Tie Guanyin essential oil were prepared by spray drying method. The effects of the type and concentration of wall materials, core-to-wall ratio and temperature on the embedding effect of microcapsules were investigated by single-factor and orthogonal tests. Meanwhile, the molecular structure, microstate and stability of microcapsules were studied. With gelatin, gum arabic and maltodextrin as wall materials(concentration ratio of 1:1:1), under the condition of wall material concentration of 1%(w/v), core-to-wall ratio of 1:2(w/w) and homogenization temperature of 50 ℃, the embedding rate of essential oil microcapsules was 97.12% and the yield was 62.44%. Infrared spectroscopy analysis confirmed the successful embedding of Tie Guanyin essential oil by the wall material. Scanning electron microscopy (SEM) analysis shows that the microcapsule wall capsule structure is relatively intact and the surface is smooth. The study of the release kinetics of the microcapsules shows that the microcapsules achieves a slow release of essential oil at 4 ℃ and 25 ℃. The results provide theoretical reference and data support for further application of Tie Guanyin essential oil.
- Publication
Packaging & Food Machinery, 2023, Vol 41, Issue 6, p40
- ISSN
1005-1295
- Publication type
Article
- DOI
10.3969/j.issn.1005-1295.2023.06.006