以凝膠法製備海藻酸鈣微膠囊包覆茶樹精油及其釋放性之研究

Preparation and Controlled Release Properties of Alginate Microcapsules Encapsulated Tea-tree Oil

林逸瑋(Y. W. Lin) ； 張志鵬(C. P. Chang)

《華岡紡織期刊》 12卷2期 (2005/06) Pp. 136-146

https://doi.org/10.29984/JHGT.200506.0006

摘要

在現代人使用芳香療法的同時，因使用時間過長或大意疏忽，容易導致災害產生，除了財物損失，造成人命傷亡的不計其數。所以為使其在低溫下有高溫之釋放效果，並且讓精油釋放速率穩定，因此本實驗採用凝膠法來進行海藻酸鈣包覆茶樹精油微膠囊之製備。而將茶樹精油微膠囊化後，可放置於不織布上製成敷面膜、濕紙巾、貼布等需速效性之領域上應用。以1%海藻酸鈉溶液與0.1%氣化鈣溶液以Adaeel83為分散劑，於轉速在5000rpm下交鏈120min後之微膠囊為本研究中最佳條件。結果顯示以最佳條件下完成之微膠囊平均粒徑為0.43±0.04μm，將其放置於模擬40℃環境下進行測試，其釋放時間近似精油於60℃下之釋放時間；而在50℃時，其釋放時間近似精油於70-90℃之釋放時間。

關鍵字

海藻酸鈉 ； 氯化鈣 ； 茶樹精油 ； 凝膠法

並列摘要

Tea-tree oil encapsulated with alginate microcapsules were prepared by a simple coacervation method. The morphology particle size, distribution and properties of controlled release were discussed in this study. The results indicated that the optimal conditions for preparation of microcapsules were 1.0% alginate solution, 0.1% concentration of CaCl2 and Arlacel83 surfactant at 5000 rpm for 120 min. The average particle size was 0.43±0.04μm at the conditions as mention above. The oil release time of microcapsules at 40℃ was approximated that at 60℃ of pure oil, and at 50℃ was approximated that at 70-90℃.

並列關鍵字

Sodium alginate ； Calcium chloride ； Tea-tree oil ； Coacervation