STUDY OF THE EFFECT OF CURING MIXTURE COMPOSITIONS ON OXIDATION OF LIPIDS IN MEAT SYSTEMS

Lipids are the most unstable substances that take part in oxidation process in meat and meat products. Table salt (sodium chloride) which is considered as a pro-oxidant factor has significant effect on the development of meat products oxidative deterioration. The main objective of the research was to study the effect of curing mixture compositions which have low sodium content on the intensity and dynamics of lipids oxidation process in model systems, raw meat and final products during storage. Semi-smoked sausages were taken as an example. The author studied curing mixtures in which 30% of sodium chloride was replaced with one of the following components: potassium chloride, calcium chloride, magnesium chloride. Compositions included potassium chloride and calcium chloride at the ration of 1 to 1, mixture of sodium chloride with yeast extract. The results of the study of the oxidation process in model systems and meat systems with different curing mixtures conform to each other which shows that the mixtures which contain potassium chloride, magnesium chloride and composition of potassium chloride and calcium chloride help slow down oxidation process. According to the results of semi-smoked sausages organoleptic analysis, which were cooked using different curing compositions, the traditional characteristics of the product are obtained when one uses curing mixture which consists of 70% of sodium chloride and 30% of potassium chloride and calcium chloride composition. The dynamics of changes in acid-degree value, peroxide value and thiobarbituric value during semi-smoked sausage storage cooked using that curing mixture indicates that lipid fraction oxidation process stabilizes.