Comparative Study of Chemical Composition of Three Species of Commercial Shrimp Penaeus semisulcatus (De Haan, 1844), Metapenaeus affinis & Parapenaeopsis stylifera (H. Milne -Edward) in North West Arabian Gulf

Abstract

In the present study, heavy metal concentrations (Fe, Pb, Zn, and Cu), proximate composition and microbial quality have been measured in edible tissues of the shrimp Penaeus semisulcatus (De Haan, 1844), Metapenaeus affinis and Parapenaeopsis stylifera (H. Milne -Edward) collected from January to December 2016, the samples were collected from the north west Arabian Gulf. These species were morphometrically measured and their tissue were analyzed for their comparative proximate (Protein %, Carbohydrate %, Lipid %, Ash % and Moisture %), on dry weight basis. Three species of shrimps showed a significant increase (p<0.05) in protein content and the highest was observed in Penaeus semisulcatus (23.57%) followed by Metapenaeus affinis and Parapenaeopsis stylifera (20.14 and 17.48%) respectively. Also, they showed lower lipid content and other proximate compositions varied significantly. Moisture was 72.26, 74.45 and 76.14% respectively between species.Variations of heavy metal concentrations at three species of shrimps are compared. Cu, Zn and Pb concentrations in P. stylifera were the highest heavy metal concentrations, while Fe concentrations were highest level observed in three species.