African Journal of Chemistry ISSN: 4391-3199 Vol. 3 (2), pp. 163-168, February, 2016. © International Scholars Journals
Full Length Research Paper
Determination of heavy metal concentration in canned beer and its effect on human health in Owerri, Nigeria
Atake Nyerhovwe Franklin
Department of Environmental Management Technology, Federal College of Land Resources Technology, P. M. B. 1518, Owerri, Imo State, Nigeria.
E-mail: [email protected]
Accepted 1 January, 2016
Abstract
Evaluation of metal concentrations in selected canned beers consumed in Owerri, Imo State, Nigeria was conducted using atomic absorption spectrophotometer (AAS) after HNO3/H2O2 digestion process. Considered metals in selected canned beers include: Al, Cd, Cr, Cu, Fe, Ni, Pb, and Zn to ascertain the quality and standards as it affect beer consumers. The results of the laboratory analysis show that the concentrations Cr, Fe, Ni, Cd and Pb in the selected canned beers were above the permissible levels concentration stipulated for potable drinking water, while the metals Zn, Al and Cu were below the permissible limits in the potable drinking water respectively. Ultimately, there is clearly a need to improve quality control in the processing of this and other canned beers. From the risk assessment of canned beers on human heath, it is ascertained that metal concentrations in the selected canned beers do not pose a risk to consumer’s health since the estimated metal daily intake per kg bodyweight is below the provisional tolerable intake of these metals as stipulated by the World Health Organization (WHO). Based on this result, quality monitoring and control by standard organization of Nigeria (SON) were suggested for beer production.
Key words: Canned beers, risk, metals, human health, Nigeria.
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Author(s) retain the copyright of this article.
Full Length Research Paper
Determination of heavy metal concentration in canned beer and its effect on human health in Owerri, Nigeria
Atake Nyerhovwe Franklin
Department of Environmental Management Technology, Federal College of Land Resources Technology, P. M. B. 1518, Owerri, Imo State, Nigeria. E-mail: [email protected].
Accepted 1 January, 2016
Evaluation of metal concentrations in selected canned beers consumed in Owerri, Imo State, Nigeria was conducted using atomic absorption spectrophotometer (AAS) after HNO3/H2O2 digestion process. Considered metals in selected canned beers include: Al, Cd, Cr, Cu, Fe, Ni, Pb, and Zn to ascertain the quality and standards as it affect beer consumers. The results of the laboratory analysis show that the concentrations Cr, Fe, Ni, Cd and Pb in the selected canned beers were above the permissible levels concentration stipulated for potable drinking water, while the metals Zn, Al and Cu were below the permissible limits in the potable drinking water respectively. Ultimately, there is clearly a need to improve quality control in the processing of this and other canned beers. From the risk assessment of canned beers on human heath, it is ascertained that metal concentrations in the selected canned beers do not pose a risk to consumer’s health since the estimated metal daily intake per kg bodyweight is below the provisional tolerable intake of these metals as stipulated by the World Health Organization (WHO). Based on this result, quality monitoring and control by standard organization of Nigeria (SON) were suggested for beer production.
Key words: Canned beers, risk, metals, human health, Nigeria.