Abstract
A lecithin sol containing magnesium ascorbate phosphate (3.0wt%) and tocopheryl acteate (0.1wt%) was prepared with a mixture of hydrogenated soya lecithin, cholesterol and a certain nonionic surfactant by a homogenizer.
The lecithin sol was stable for over two months at 50°C.
The viscosity of the lecithin sol was 2.2cP at 25°C by the Brookfield type viscometer, which is the same value as a lecithin sol without magnesium ascorbate phosphate.
The mean diameter of the lecithin sol measured by both the coulter counter N4 and the Nicomp was about 100nm and did not change for over two months at 50°C.
The encapsulation rate of magnesium ascorbate phosphate mearsured by both the centrifuge and the chromatography method was found to be in the range of 16-34%.
