Abstract
The study for this paper was conducted to assess the proximate compositions, heavy metal concentrations and pesticide residues in marine dried fish. The selected fish were silver pomfret (Pampus chinensis), bombay duck (Harpadon nehereus), ribbon fish (Trichiurus savala), sardine (Salmostona bacaila) and anchovy (Colia dussumieri) collected from the Cox’s Bazar, Kuakata (Patuakhali) and Dubla Island (Khulna) of Bangladesh coast. The moisture content ranged from 11.27% (S. bacaila) to 38.94% (P. chinensis) among the dried fish products. Protein content varied from 51.33% (C. dussumieri) to 77.68% (T. savala). The As concentration varied from 8.41 mg/kg to 22.27 mg/kg only in T. savala. The Fe content was measured 116.85 mg/kg to 160.18 mg/kg in H. nehereus and P. chinensis. The Zn concentration varied from 31.08 mg/kg to 36.74 mg/kg. Among heavy metals, As, Fe and Zn concentration were found higher than the permissible level for human consumption. However, Cd, Cu and Pb tested were found within the permissible level in all three species. The residue of organochlorine pesticide was found within the maximum residue limit level recommended by World Health Organization. The existence of pesticides residues in the samples of this study is a matter of health concern as this poisoning has long term effect on human health.
Highlights
Three most popular dry fish samples loittya, churi and rupchanda were used for heavy metals and pesticide residues determination
The proximate composition of fishes as well the moisture (11.27% to 38.94%) and protein content (51.33% to 77.68%) were analyzed which was almost similar to the previous studies
The As (8.41 mg/kg to 22.27 mg/kg), FAO (1983). The iron (Fe) (116.85 mg/kg to 160.18 mg/kg) and Zn (31.08 mg/kg to 36.74 mg/kg) concentration were found higher than the permissible level for human consumption, whereas, Cd, Cu and Pb were found within the permissible level in all three species
Summary
The fisheries sector of Bangladesh contributed to the country’s GNP amounting about 4.4% of the total GDP and the seafood export sector is the country’s second largest source of foreign exchange (DoF, 2012). The sun drying of fish is the most common and the oldest known method of preservation, which has been widely used in coastal Bangladesh during the period of mid-October to mid-April. The inappropriate drying and applying pesticides on dried fish are two malpractices that have adverse effects on flavor, taste and texture of dried fish Another major concerning issue nowadays is the presence of heavy metals in fish and fish products. Many researches have been conducted on heavy metals in fish, there seems to be inadequate literature on heavy metals in dried fish sold in the market In view of these circumstances, the present study was carried out to assess proximate composition, heavy metal concentrations and concentration of pesticide residues in marine dried fish collected from three different fish drying areas as Cox’s Bazar, Kuakata (Patuakhali) and Dubla Island (Khulna) of Bangladesh coast
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
