FOOD. Science. Technology. Quality

Food. SCIENCE. Technology. Quality

Food. Science. TECHNOLOGY. Quality

Food. Science. Technology. QUALITY




The effect of calcium chloride addition and heating the milk on the chemical composition and nutritive value of salami cheese


A study was undertaken to determine the effect of milk supplementation with calcium chloride and heating the milk on the course of technological process of the Salami cheese production, as well as on its chemical composition and the nutritive value of its protein. The investigations found that the addition of calcium chloride to milk (0.02%) and the increase in the temperature of its pasteurization from 75°C to 90°C/15 made it possible to increase the yield of Salami cheese by 10%. The Salami cheese produced from milk enriched with calcium chloride and highpasteurized, as compared to a cheese obtained with a traditional method, was characterized by a statistically significantly higher (at a significance level of α = 0.05) content of water, ash, calcium, and phosphorus. The analysis of the contents of nitrogen compounds showed that during the ripening process of experimental cheese, the proteolytic changes proceeded more intensively than in the control cheese, which was proved by a higher content of nitrogenous compounds soluble at pH 4.6 and of non-protein nitrogenous compounds. The analyses of nutritive value of the protein demonstrated that the experimental cheese, owing to the higher content of exogenic amino acids: isoleucine, lysine, cystein-cystine and tryptophan, was characterized by a higher nutritive value determined by means of Chemical Score (CS) and Exogenic Amino Acids index (EAAI), in comparison with the cheese produced using a traditional method.


Salami cheese, chemical composition, amino acids, nutritive value of protein