Archive

Volume 3, Number 2 / April issue 2017
Nwineewii Jack Dumka, Marcus Abiye Clement
Toxic and essential metal concentrations in roasted Plantain and fish commonly consumed by Port Harcourt inhabitants, Rivers state, Nigeria
Abstract

Of recent, the consumption of roasted Plantain and fish popularly known as Bole during lunch hours in Port Harcourt has been on the increase. Considering the open nature by which this meal is prepared along roadside and the industrial concentrations of the Port Harcourt metropolis, most inhabitants of the city believed that these food items may have been polluted by metals. Hence, this study was necessitated to actually ascertain the levels of some toxic and essential metals in roasted plantain and fish in the city. Food samples were collected from eight locations based on high population of the area, high vehicular movements and presence of industries. The collected food samples were prepared, digested and subjected to heavy metals analyses using the atomic absorption spectroscopy. The results of the detectable concentrations (mg/kg) of the metals in the roasted plantain were: Cd (0.062±0.1289) mg/kg, Pb (0.135±0.1207) mg/kg, Zn (21.33±13.203) mg/kg, Fe (58.19±14.73) mg/kg, Cr (0.054±0.3002) mg/kg, Mn (0.026±0.0273) mg/kg, Ag (0.036±0.0197) mg/kg and As (0.038±0.0243) mg/kg. In the roasted fish the mean concentrations with standard deviation were: Cd (0.007±0327) mg/kg, Pb (0.07±0.066) mg/kg, Zn (29.6±27.34)mg/kg, Fe (44.103±19.838)mg/kg, Cr (0.64±0.289)mg/kg, Mn(0.03±0.0192) mg/kg, Ag(0.0215±0.0174) mg/kg and As(0.0145±0.0141)mg/kg. These results showed that the mean concentration of all the essential metals in roasted plantain and fish were within the recommended limit set by WHO/FAO. For the heavy metals, the mean concentrations were within the recommended limits in the plantain and fish except in few locations where the concentrations of Pb, Cd, Ag and As were slightly elevated. Based on the findings, roasted plantain and fish may be considered fit for consumption. The slight increase in concentration at some locations however calls for caution considering the non-biodegradable nature and accumulative properties of heavy metals.
Keywords: Toxic, essential, concentration, roasted, plantain, fish, Port Harcourt, metal consumed etc.

Cite this article:
Nwineewii Jack Dumka, Marcus Abiye Clement. Toxic and essential metal concentrations in roasted Plantain and fish commonly consumed by Port Harcourt inhabitants, Rivers state, Nigeria. Acta Scientiae et Intellectus, 3(2)2017, 83-91.


REFERENCES

  1. Adekunle, I.M. & Akinyemi, M.F. (2004). Lead levels of certain consumer products in Nigeria. A case study of smoked fish foods from Abeokuta. Food Chemical Toxicol, 42 (9), 1463 – 1468.
  2. Aderinola O.J., Clarke E.O., Olarinmoye, O.M., Kusemiju, V. & Anatekhai, M.A. (2009). Heavy metals in surface water, sediments, fish and periwinkle of Lagos Lagoon. America-Eurasian Journal Agricultural Environmental science, 5(5), 609-617.
  3. Alka, S.E. (2000). A Textbook of Medical Biochemistry. New Delhi: Brother Med. Pub. Ltd.
  4. Ajayi, A. & Kamsom, O.E. (1983). Determination of lead in Roadside Dust in Lagos city by Atomic Absorption Spectrophotometry Environmental International, 9, 397 – 400.
  5. Biswas, S., Parvez, M.A, Shafiguzzaman, M., Nahar, S. & Rahman, M. (2010). Isolation and characteristics of Escherichia coli in Ready to eat foods vended in Islamic University, Kushita. Journal of Biology Science, 18, 99 – 103.
  6. Charles, A. & Linden, G. (1999). Food Biochemistry.1st Edition. Gothenbury Maryland: Aspen Publication.
  7. Choudhury, M., Mahanta, L., Goswami, J., Mazumder, M. & Pegoo, B. (2011). Socio-Economic profile and food safety knowledge and practice of street food vendor in the city of Guwahati. Assam, India food control, 22, 196 – 203.
  8. DFID (undated) improving the safety of street vended foods in Ghana (R – 7493). Crop Post harvest programme Newsletter 2pp.
  9. FAO/WHO, Codexalimentarius commission (2001). Food Additive and contaminants. Joint FAO/WHO Food Standards Programme, Alinorm 01/12A:1-289.
  10. Feglo, P. & Sakyi, K. (2012). Bacterial contamination of street vending food in Kumasi Ghana. Journal of medical Biomedical sciences, 1, (1) 1 – 8.
  11. Ikem, A. & Egiebor, N.O. (2005). Assessment of Trace Elements in canned fishers marketed in Georgia and Alabama United State of America. Food comparative Analytical, 18, 77178.
  12. Iweala, E.J., Olugbuyiro, T.A.O., Durodola, B.M., Fubara-Manuel, D.R & Okoli, A.O. (2014). Metal contamination of food and drinks consumed in Ota, Nigeria. Research Journal of Environmental Toxicology 8(2): 92-97.
  13. Musa, O.L. & Akande, T.M. (2002). Effect of Health Education intervention or food safety practices Among Food vendors in Ilorin. Sahel Medical Journal, 5, 120 – 124.
  14. Ogunsola, O.J., Oluwole, A.F., Osubiojo, I.O., Durosinmi, M.A., Fatusi, A.O. & Ruck, W. (1994). Environmental impact of vehicular Traffic in Nigeria Health Aspect Science Total Environmental, 146/147, 111 – 116.
  15. Oladipo, I.C. & Adejumobi, O.D. (2010). Incidence of Antibiotic Resistance in some Bacterial pathogens from street vended foods in Ogbomoso, Nigeria Pakistan Journal of Nutrition, 9, 1061 – 1068.
  16. Onianwa, P.C. & Egunyomi, A. (1983). A Trace metal levels in some Nigeria mosses as indicators of Atmospheric Pollution Environmental Pollution Service, 13, 71 – 81.
  17. Opeolu, B.O., Adebayo, K., Okuneye, P.A & Badru, F.A (2010). Physiochemicals and microbal Assessment of Roadside food and water sample in Lagos and Environment. Journal of Applied Science and Environmental Management 14, (1), 29 – 34.
  18. Pikuda, O.O. & Ilelaboye, N.O. (2009). Proximate composition of street snacks purchase from selected motor park in Lagos. Pakistan Journal of Nutrition, 8, 1657 – 1660.
  19. Rane, S., (2011). Street vended food in Developing world, Hazard Analysis. India Journal in Microbial, 51, (1), 100 – 106.