Heavy metal, proximate and microbial profile of some selected commercial marine fish collected from two markets in south western Nigeria

Ogundiran, M. A.; Adewoye, S. O.; Ayandiran, T. A.; Dahunsi, S. O.

doi:10.5897/ajb2013.13240

Cited by 15 publications

(15 citation statements)

References 26 publications

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“…The average mean concentrations of lead shown in all the tissues were found to exceed the safety limits recommended by FAO [18]. This was also found to be far above the concentrations reported by other studies in the Mediterranean Sea on fish tissues [34,46,47]. [48].…”

Section: Lead Concentrations the Results Inmentioning

confidence: 74%

Risk Assessment of Heavy Metals in Imported Frozen Fish Scomber scombrus Species Sold in Nigeria: A Case Study in Zaria Metropolis

Abubakar

Uzairu

Ekwumemgbo

et al. 2015

Advances in Toxicology

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This study assesses the likely health risks to human contamination of heavy metals from fish consumption. The analysis of the idea of fish destination and status (fishing area) for heavy metals was determined by the assessment of its risk limits (daily intake of metal and health risk index). Variations in the accumulation of heavy metals concentrations were between various tissues/organs (skin, muscle, gills, liver, intestine, kidneys, brain, and bones) across the batches of two fishing origins. Post hoc (Duncan) multicomparison shows that there are significant differences ( < 0.05) across batches. The concentrations of heavy metals analyzed, in the investigated tissues of Scomber scombrus, showed higher levels of heavy metals accumulations in the order: Fe > Hg > Pb > Cd > Ni and were above the recommended safety limits outlined by FAO/WHO. However, the consumer's health risk with the consumption of fish muscles tissues shows that there are greater tendencies for cadmium, lead, and mercury exposure. Also consumption of Scomber scombrus species above the recommended daily intake (stated in this study) might lead to ingestion of heavy metals at unacceptable concentrations.

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Section: Lead Concentrations the Results Inmentioning

confidence: 74%

Risk Assessment of Heavy Metals in Imported Frozen Fish Scomber scombrus Species Sold in Nigeria: A Case Study in Zaria Metropolis

Abubakar

Uzairu

Ekwumemgbo

et al. 2015

Advances in Toxicology

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“…Canned tuna 27 0.06 Jordan European conger eel 28 0.11 ± 0.01 Italy Blackbellied angler 28 0.09 ± 0.02 Italy Rosefish 28 0.10 ± 0.02 Italy Brown ray 28 0.08 ± 0.04 Italy Red mullet 28 0.08 ± 0.04 Italy European pilchard 29 0.045 ± 0.020 Sicily Red mullet 29 0.084 ± 0.069 Sicily Red mullet 30 0.053 ± 0.027 Italy Salted anchovies 31 0.06 to 0.61 Italy Various species 32 0.092 ± 0.267 EU Member States, Iceland and Australia Louvar 33 0.08 ± 0.01 Spain Albacore 34 0.05 ± 0.03 Mediterranean Sea Grey mullet 35 0.10 to 0.40 Turkey Atlantic mackerel 36 0.49 ± 0.01 Nigeria European pilchard 36 0.19 ± 0.0001 Nigeria Blue whiting 26 0.10 ± 0.06 Italy European hake 26 0.05 ± 0.04 Italy Red mullet 26 0.07 ± 0.05 Italy Pb Rudd 37 4.31 Bulgaria Algae 38 -New Jersey, USA Salmon 39 0.4 Lithuania European anchovy 29 0.32 ± 0.22 Sicily Canned sardines 11 2.15 ± 0.85 Brazil Rednose labeo 40 0.8 South Africa Atlantic mackerel 36 0.46 ± 0.02 Nigeria Hg…”

Section: Chemistry and Accumulation Of Mercury Speciesmentioning

confidence: 99%

Heavy metals in marine fish meat and consumer health: a review

et al. 2015

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The numerous health benefits provided by fish consumption may be compromised by the presence of toxic metals and metalloids such as lead, cadmium, arsenic and mercury, which can have harmful effects on the human body if consumed in toxic quantities. The monitoring of metal concentrations in fish meat is therefore important to ensure compliance with food safety regulations and consequent consumer protection. The toxicity of these metals may be dependent on their chemical forms, which requires metal speciation processes for direct measurement of toxic metal species or the identification of prediction models in order to determine toxic metal forms from measured total metal concentrations. This review addresses various shortcomings in current knowledge and research on the accumulation of metal contaminants in commercially consumed marine fish globally and particularly in South Africa, affecting both the fishing industry as well as fish consumers.

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“…According to Adekoya and Miller (2004), globally, fish and fish products constitute more than 60% of the total protein intake in adults, especially in the rural areas. Fish has the potential to be considered as a balanced food and can therefore be expected to provide relief from malnutrition (Ogundiran, Adewoye, Ayandiran, & Dahunsi, 2014). It also has a high economic value for many countries because it represents the largest share among agribusiness products on the global market (Silva, Silva, Andradel, Veloso, & Santos, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effects of Smoking and Freezing on the Nutritive Value of African Mud Catfish, Clarias gariepinus Burchell, 1822

Akinwumi¹

2014

JAS

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Post-harvest loss of fish is a major factor of economic and protein wastages in the developing countries. In this study, the effects of two common methods of preservation, smoking and freezing on the nutritive value of the African mud catfish, Clarias gariepinus were determined. Live samples of C. gariepinus were obtained from the fish farm of the Department of Environmental Biology and Fisheries, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria, and were transported to the laboratory of the Department. One portion of the harvested fish was smoked, using a smoking kiln (model: ELC 1600) at 60-70 o C for 24 hours and stored in a polythene bag for further use. Another batch of C. gariepinus was preserved immediately after harvest in the freezer (Haier Thermocool, BD-428A) at less than -0 o C for 20 days. The third batch of the live fish was sacrificed immediately and prepared for biochemical analysis. The proximate compositions of the fish samples were determined according to AOAC (1995). The percentage moisture, protein, lipid, ash, crude fibre and carbohydrate contents obtained in the smoked fish samples were statistically different (P > 0.05) to the fresh fish samples (control). Similarly, there were significant differences in the percentage protein, lipid and crude fibre values in the frozen fish samples when compared to the fresh fish samples but there were no significant changes (P < 0.05) in the moisture, ash and carbohydrate contents of the frozen fish samples in comparison to the control. The proximate values of the frozen fish evoked significant differences in comparison to the smoked samples except in the crude fibre and lipid contents. Phosphorous content was highest in the smoked fish samples and lowest in the fresh fish samples while the values of iron, potassium and vitamin C contents were generally low in all the samples. Smoking demonstrated a better efficient method of fish processing in terms of the retention of protein value and reduction in the moisture content. The information obtained in this study could be useful to fish consumers, processors and nutritionists in the efficient management of fish resources.

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Heavy metal, proximate and microbial profile of some selected commercial marine fish collected from two markets in south western Nigeria

Cited by 15 publications

References 26 publications

Risk Assessment of Heavy Metals in Imported Frozen Fish Scomber scombrus Species Sold in Nigeria: A Case Study in Zaria Metropolis

Risk Assessment of Heavy Metals in Imported Frozen Fish Scomber scombrus Species Sold in Nigeria: A Case Study in Zaria Metropolis

Heavy metals in marine fish meat and consumer health: a review

Effects of Smoking and Freezing on the Nutritive Value of African Mud Catfish, Clarias gariepinus Burchell, 1822

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