OPTIMIZATION TECHNOLOGY OF FAT-SOLUBLE VITAMINS PRODUCTION BASED ON ALKALINE HYDROLYSIS

In the group of fat-soluble vitamins, vitamin D is one of the most relevant objects, that is why the problem of its technology optimization is under consideration. In general, there is a number of ways to obtain this substance, although it is not produced in Russia yet.The aim of the study was to select optimal process conditions to increase the efficiency of protein transformation with the isolation of a fat fraction containing fat-soluble vitamin D.Materials and methods. Various types of fish and the vitamins contained in them are described as the main research models. Variants of technological solutions have been considered: the possibility of using extraction to obtain the vitamin D substance has been tested. Classical maceration and intensifying maceration have been used; the circulating extraction method and the alkaline hydrolysis method have been applied. The yield of the target product has been determined by HPLC.Results. Methods for obtaining the substance of fat-soluble vitamin D from fish raw materials have been considered in detail. The optimal technological characteristics of the vitamin release by alkaline hydrolysis with a 12.5% decrease in the concentration of the hydrolyzing alkaline component – potassium hydroxide – has been established; that concentration ensured the maximum yield of the fat fraction containing vitamin D.Conclusion. The use of the resulting substance makes it possible to develop domestic standard samples applicable both in the pharmaceutical field and in the field of technical regulation.