Research Article

Seasonal Proximate Composition, Amino Acid and Trace Metal Contents of the Great Mediterranean scallop (Pecten jacobaeus) Collected from the Gulf of Antalya

Volume: 7 Number: 3 September 30, 2022
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Seasonal Proximate Composition, Amino Acid and Trace Metal Contents of the Great Mediterranean scallop (Pecten jacobaeus) Collected from the Gulf of Antalya

Abstract

This study evaluated the seasonal nutrient content and trace element composition of the great Mediterranean scallop (Pecten jacobaeus), which is among the economic scallop species. The samples were obtained as by-catch from the trawler nets of commercial fishing boats operating in the Gulf of Antalya seasonally between 2017 and 2018. After determining the scallops' growth indices of the scallops; proximate composition, amino acid and element analyses were carried out. According to the results; condition index and gonadosomatic index were found highest in the summer, while meat yield was found highest in the autumn. The muscle tissue's crude protein and ash ratio decreased to mimimum values in summer. Crude fat was determined at the highest level in the spring and decreased after the summer when the reproduction period was over (P<0.05). Total amino acid contents in muscle were found between 13.313±0.81 to 15.047±0.57 g/100g. Valine, phenylalanine and isoleucine decreased from autumn to summer (P<0.05), no statistically significant change was found in amounts of tryptophan and threonine (P>0.05). Also, P. jacobaeus was found rich in boron, zinc, and manganese. All trace elements measured in this study were found below the acceptable limits. Amongst the toxic metals, arsenic and mercury were not detected in the scallop tissues. Although cadmium and lead were not detected in muscle tissue, they were found in the digestive gland even below the acceptable limit values.

Keywords

bivalve , essential amino acids , seafood safety , heavy metals , by-catch

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APA
Veske, E., Çankırılıgil, E. C., & Yavuzcan, H. (2022). Seasonal Proximate Composition, Amino Acid and Trace Metal Contents of the Great Mediterranean scallop (Pecten jacobaeus) Collected from the Gulf of Antalya. Journal of Anatolian Environmental and Animal Sciences, 7(3), 358-366. https://doi.org/10.35229/jaes.1111135