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VOL. 6, ISSUE 4 (2021)
Quantitative evaluation of potassium bromate and some heavy metals in selected bread samples produced in Sokoto State, Nigeria
Authors
M M Abduljalil, M G Abubakar, S S Lawal, A F Yaissa
Abstract
Bread is among the stable and essential food consumed widely amongst all socioeconomic groups in Nigeria. Forty-Six (46) different bread products were sampled and analysed, aimed at evaluating the level of potassium bromate in the bread loaves and improvers, as well as to determine the level of selected vitamins (A and E) and heavy metals in the bread products. The result revealed the presence of potassium bromate in the entire bread samples and improvers analysed. Samples with highest concentration of potassium bromate were observed to have lowest concentration of vitamins A and E and vice versa. The heavy metal evaluated are Nitrite (NO2-), Lead (Pb), Cadmium (Cd), Cupper (Cu), Zinc (Zn) and Iron (Fe). The result showed that all the bread samples analysed contained NO2- at the mean level of ranges from 0.026±0.008mg/kg to 0.397±0.009mg/kg, while Thirty (30) samples contained Pb at the range from 0.147±0.095mg/kg to 12.355±0.022mg/kg. Eight (08) samples are also shown to contain Cadmium (Cd) within the range of 0.025±0.006mg/kg to 0.868±0.099mg/kg while only fourteen (14) bread samples had Cupper (Cu). The level of Zinc (Zn) ranges from 0.009±0.000mg/kg to 1.468±0.021mg, but no quantity of Iron (Fe) was detected in any of the bread samples analysed. Some the values for Pb and Cd are within the permissible limit, while Cu and Zn content in all the samples are below the permissible limit. The findings of this study showed that potassium Bro mate degrades vitamins A and E in the bread whereas the concentration of potassium bromate in the bread sample observed may be due to the bread improvers used by the bread baker as high concentration of the chemicals was observed in all the improvers analysed.
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Pages:99-107
How to cite this article:
M M Abduljalil, M G Abubakar, S S Lawal, A F Yaissa "Quantitative evaluation of potassium bromate and some heavy metals in selected bread samples produced in Sokoto State, Nigeria ". International Journal of Food Science and Nutrition, Vol 6, Issue 4, 2021, Pages 99-107
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