INTERFACIAL TRANSFER OF VITAMIN-E ACETATE DURING EVAPORATION OF ITS EMULSION

The phase equilibria were determined in a vitamin E acetate-in-water e mulsion stabilized by lecithin, and the phase changes were studied dur ing evaporation. The theoretical evaporation trajectory predicted the vitamin E acetate droplets to disappear gradually in a limited ranee o f water content during volatilization. Optical microscopy of a single droplet during evaporation confirmed the prediction: the droplet was g radually absorbed into the lamellar liquid crystal during evaporation of water.