Amino acid analysis of muscle tissue of walleye and pike of the Volgograd reservoir

Abstract

The purpose of our study is to analyze the data on the amino acid composition of the muscle tissue of common walleye and common pike obtained in the natural conditions of the Volgograd reservoir and to establish their nutritional value for the human body. The data obtained indicate that the quantitative and qualitative composition of amino acids of the muscle tissue of hydrobionts is similar; there is a general high content of glutamic and aspartic acids, arginine, lysine, isoleucine and leucine. The total number of proteinogenic amino acids exceeds the muscle tissue of walleye by 15.58%. It is also noted that the composition of the muscle tissue of the pike perch includes the largest amount of essential amino acids. The content of cystine and histidine in the studied samples is the least in terms of quantity. The natural nutrition of pike and pike perch is not balanced enough in terms of the content of high-grade protein, but it is enough for the growth of fish in the conditions of the Volgograd reservoir. Under natural conditions, pike perch and pike did not receive the amino acid valine in their diets. The biological value of the protein of the muscle tissue of the common pike is 1.43% higher compared to the muscle tissue of the common pike perch.