Investigation of Concentration of Essential and Non-Essential Amino Acids in Grass Carp (Ctenopharyngodon idella) in Different Weights and Lengths

Grass carp or Amur fish is considered one of the most important tropical fish and has a special importance in people's food basket. Amino acids are often known as protein building chains and are compounds that play a very important role in the body of living organisms. The present research was conducted to determine the concentration of essential and non-essential amino acids in Amur fish (Ctenopharyngodon idella) fillet. The grouping included weight groups of 20, 100 and 500 grams and length groups of 10, 22 and 35 cm. The composition of essential and non-essential amino acids was measured according to the method of Bidlingmeyer et al. (1984). Data analysis was done with the help of SPSS19 software and one-way analysis of variance and Duncan's test and the presence or absence of significant difference was determined at the 95% level. The results of amino acids analysis showed that the amount of essential amino acids in Amur fish fillet including: arginine, histidine, leucine, methionine, threonine, lysine, phenylalanine and valine in different weights and lengths did not differ significantly from each other (p > 0.05). Also, according to the results, it was determined that the amount of non-essential amino acids including: aspartic acid, gluten, serine, glycine, alanine, proline, tyrosine and cystine in different weights and lengths was not significantly different from each other (p > 0.05). The results of this study showed that length and weight had no significant effect on the amount of amino acids in Amur fish.