DETERMINATION OF GLYCIDYL ETHERS CONTENT IN VARIOUS VEGETABLE OILS

Abstract

The paper presents concentrations of glycidyl esters of fatty acids in terms of glycidol in samples of unrefined and refined vegetable oils in accordance with the
methods described in GOST R ISO 18363-2-2019 and MN 4.1.3547-19. The range of concentrations of glycidyl esters in the studied samples of vegetable oils ranged
from 0.1 to 9.8 mg/kg, while the standard norm should not exceed 1 mg/kg for edible vegetable oils. The analysis of oil samples confirmed the complete and almost complete absence of glycidyl esters in underdosed oils. The largest amount of glycidyl esters was found in refined palm oil (9.8 mg/ kg), which indicates the
importance of controlling the content of these toxic impurities in vegetable oils entering the market. The results of the study showed that the physical and physicochemical parameters of refined and unrefined oils, for all the presented samples of vegetable oils, confirm their naturalness and comply with established standards. The studied vegetable oils in terms of fatty acid composition meet the requirements
of regulatory documents for various types of oils.