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Microencapsulation of Ascorbic Acid with Tripalmitin by Using Dry Coating Method
Graduate School of Science and Technology, Niigata University, Niigata, Japan
Graduate School of Science and Technology, Niigata University, Niigata, Japan
Department of Research & Development, Shofu Inc., Kyoto, Japan
Graduate School of Science and Technology, Niigata University, Niigata, Japan
- 1 Graduate School of Science and Technology, Niigata University, Niigata, Japan
- 2 Graduate School of Science and Technology, Niigata University, Niigata, Japan
- 3 Department of Research & Development, Shofu Inc., Kyoto, Japan
- 4 Graduate School of Science and Technology, Niigata University, Niigata, Japan
Materials Sciences and Applications·Volume 06 (2015)·Pages 130–139·Published 23 January 2015·DOI10.4236/msa.2015.62016
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Abstract
It was tried to microencapsulate the ascorbic acid powder as a redox initiator with tripalmitin by use of the dry coating method. In the experiment, the feed ratio of the amount of tripalmitin to that of ascorbic acid, the coating time and the concentration of ethyl alcohol of pulverizing solvent were changed stepwise. The characteristics of microcapsules such as the content of core material, the yield, the water proof degree, the microencapsulation efficiency and the mean diameter were estimated. The yield, the microencapsulation efficiency and the water proof degree gradually increased with the feed ratio, the coating time and the concentration of pulverizing solvent. The microcapsules showed the thermal responsibility and induced polymerization of methyl methacrylate monomer.
KeywordsAscorbic AcidTripalmitin MicrocapsulesDry CoatingRedox InitiatorThermal Responsibility
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