Using natural zeolites to improve the quality of unrefined vegetable oils

Abstract

The article is devoted to the study of the possibility of using natural zeolites as adsorbents for the purification of unrefined vegetable oils, intended for direct consumption in food, from undesirable concomitant substances. To increase their sorption capacity, various activation methods were used, such as physical and chemical. The best sorption properties were found in zeolites, activated by the complex method (heat and acid treatment). Conducted refining of unrefined sunflower oil allowed to increase its quality to meet the requirements of the state standard for the highest grade oil.