On the Sorption of Vitamin A Palmitate into Polyethylene from the Solubilized Solution : (I) SORPTION AND FACTORS AFFECTING IT

Abstract

When the solubilized solution of vitamin A palmitate (A-pmt) was stored in contact with polyethylene, the A-pmt content in the solution was found as if it were decomposed rapidly. The decrease of the content is merely attributed to the sorption of A-pmt into polyethylene, but not to the chemical degradation. Rate of the sorption is affected by the storage temperature and the composition of the solubilized solution ; sorts of the surfactant used and concentration of the components such as electrolytes are important factors for sorption. In case of the solution solubilized with"Tween"series, correlation was found between rates of the sorption and cloud points of the solution.