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http://dx.doi.org/10.3993/jfbi03200907

has been cited by the following article:

• TITLE: Development of Preparation Method for Microencapsulating Uycalyptus Oil Containing Fine Aqueous Droplets by Use of Interfacial Condensation Reaction between Hydroxy Propyl Methyl Cellulose and Tannic Acid

  AUTHORS: Hiroyuki Sato, Yoshinari Taguchi, Masato Tanaka

  KEYWORDS: Microcapsule, Uycalyptus Oil, Multiple Emulsion, Interfacial Condensation Reaction, Hydroxyl Propyl Methyl Cellulose, Tannic Acid

  JOURNAL NAME: Journal of Cosmetics, Dermatological Sciences and Applications, Vol.4 No.4, July 18, 2014

  ABSTRACT: It was tried to develop the preparation method for microencapsulating the uycalyptus oil containing fine aqueous droplets by using the interfacial condensation reaction between hydroxyl propyl methyl cellulose and tannic acid. Uycalyptus oil containing fine aqueous droplets was dispersed in the continuous water phase to form the (W/O)/W emulsion. Tannic acid and hydroxyl propyl methyl cellulose were dissolved in the inner aqueous droplets and in the outer continuous water phase, respectively. Tannic acid transferred through the oil phase from the inner water droplets to the interface between the oil phase and the continuous water phase and then, reacted with hydroxyl propyl methyl cellulose. In the experiment, the concentrations of hydroxyl propyl methyl cellulose and tannic acid were mainly changed stepwise. The uycalyptus oil containing the fine water droplets could be microencapsulated satisfactorily. It was found that the microcapsules were composed of the gelated hydroxyl propyl methyl cellulose film as the shell, the fine aqueous droplets as the first core and the oil droplet as the second core.