Comparative characteristics of protein products obtained from the testes of slaughtered animals

The paper gives a comparative description of protein products obtained from the testes of a bull and a stallion to determine the possibility of using these drugs as a food supplement. The preparations were obtained by the method of sublimation and low-temperature (50-55 °C) drying from endocrine-enzymatic raw materials obtained during slaughter of cattle (Ulaanbaatar, Mongolia). The chemical, amino acid and mineral composition of preparations was studied. Both products are characterized by a high protein content - from 69.6 to 74.1 %. In the preparation from the testes of the stallion, the protein content and the level of moisture exceeded those of the product from the testes of the bull by 6.5-6.7 %. The bovine testicle product contains 38 % more fat than the stallion testicle preparation. The study of the amino acid composition of the preparations showed the presence of all types of essential amino acids. Both products are dominated by glutamine with glutamic acid, asparagine, lysine, leucine and arginine. The content of tryptophan, cysteine and cysteine, methionine and histidine is minimal. In the product from the organs of the bull, the content of tryptophan is 3.3 times higher than in the preparation from the testes of the stallion. The mineral composition of protein products includes macronutrients (potassium, sodium, calcium, magnesium) and microelements (iron, zinc, manganese and copper). The maximum content of potassium and sodium was established, the level of sodium is 2.25 times less than that of potassium. The amount of calcium in the product from the testes of a bull is 3 times more than in the preparation from the testes of a stallion. The content of manganese and copper in both products is minimal. The research results show that preparations obtained from the testes of slaughtered animals are complete protein products containing all the essential amino acids and the most important macro- and microelements, and can be recommended as dietary supplements that can compensate for nutritional deficiencies.