期刊
JOURNAL OF MICROENCAPSULATION
卷 32, 期 1, 页码 86-95出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/02652048.2014.985342
关键词
Alginate; emulsion; encapsulation; mixing; optimisation
资金
- Brazilian government through the program Ciencias sem Fronteiras'' (Brazil)
A promising technique for oil encapsulation in Ca-alginate capsules by inverse gelation was proposed by Abang et al. This method consists of emulsifying calcium chloride solution in oil and then adding it dropwise in an alginate solution to produce Ca-alginate capsules. Spherical capsules with diameters around 3 mm were produced by this technique, however the production of smaller capsules was not demonstrated. The objective of this study is to propose a new method of oil encapsulation in a Ca-alginate membrane by inverse gelation. The optimisation of the method leads to microcapsules with diameters around 500 mm. In a search of microcapsules with improved diffusion characteristics, the size reduction is an essential factor to broaden the applications in food, cosmetics and pharmaceuticals areas. This work contributes to a better understanding of the inverse gelation technique and allows the production of microcapsules with a well-defined shell-core structure.
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