Microencapsulation of Ascorbic Acid with Tripalmitin by Using Dry Coating Method

Yoshinari Taguchi¹, Hidetoshi Tanabe¹, Kiyomi Fuchigami², Masato Tanaka¹

¹Graduate School of Science and Technology, Niigata University, Niigata, Japan.
²Department of Research & Development, Shofu Inc., Kyoto, Japan.

DOI: 10.4236/msa.2015.62016                

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.

Keywords

Ascorbic Acid, Tripalmitin Microcapsules, Dry Coating, Redox Initiator, Thermal Responsibility

Conflicts of Interest

The authors declare no conflicts of interest.

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