FUW TRENDS IN SCIENCE & TECHNOLOGY JOURNAL
(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170
keywords: Contamination, meat, minerals, northern Nigeria, plastic wastes, singeing
Analysis of some mineral contamination of cow, sheep and goat meats (unwashed and washed) through the use of scrap tyre for singeing as the processing method was carried out in some of the states in Northern part of the country (Nigeria) to determine the level of these mineral (As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn). All the meat samples contained the mineral determined. The overall results in cow meat samples ranged from 0.187 – 0.211, 0.321 – 0.953, 0.351 – 0.987, 0.245 – 0.967, 0.875 – 2.231, 18.354 – 27.765, 2.234 – 4.321, 0.932 – 1.097, 0.110 – 0.879 and 3.456 – 9.765 μg/g for unwashed cow meat and 0.157 – 0.999, 0.225 – 0.747, 0.257 – 0.886, 0.205 – 0.869, 0.679 – 2.031, 19.054 – 23.761, 2.031 – 3.021, 0.732 – 1.007, 0.110 – 0.876 and 2.456 – 8.569 μg/g in washed cow meat samples for As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn respectively. In unwashed sheep meat samples the concentration of the mineral determined ranged from 0.157 – 0.918, 0.299 – 0.858, 0.451 – 0.884, 0.235 – 0.869, 0.776 – 2.031, 16.334 – 26.725, 2.331 – 3.922, 0.831 – 1.034, 0.110 –0.770 and 2.456 – 10.765 and for the washed sheep meat samples the level of the same minerals ranged from 0.139 – 0.818, 0.209 – 0.759, 0.399 – 0.798, 0.245 – 0.854, 0.707 – 2.130, 18.334 – 29.765, 2.237 – 3.022, 0.735 – 0.989, 0.110 – 0.655 and 2.058 – 10.063 μg/g for As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn, respectively while in the goat meat samples the concentration of the mineral ranged from 0.137 – 0.801, 0.299 – 0.853, 0.356 – 0.882, 0.255 – 0.861, 0.779 – 2.039, 18.099 – 28.765, 3.234 – 4.922, 0.839 – 1.013, 0.130 – 0.896 and 3.552 – 9.961 for unwashed goat meat and 0.117 – 0.799, 0.219 – 0.875, 0.296 – 0.771, 0.215 – 0.751, 0.674 – 2.002, 19.099 – 30.065, 3.034 – 4.221, 0.631 – 1.001, 0.110 – 0.799 and 3.652 – 9.061 μg/g in washed goat meat samples for As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn, respectively. The mean concentration (μg/g) of the mineral of the regularly slaughtered meats singed with scrap tyres and plastic wastes were significantly higher than the mean concentration observed in raw, fresh and unprocessed meats. It was revealed that the uses of scrap tyres and plastic materials are the highest contributors of these toxic metals to singed meats. The sources of these mineral in these materials are linked to the composition of the raw materials from which the items were derived from. The concentrations of some the minerals like Fe, Cd, Cr, Cu and Zn exhibited some pattern where the unwashed singed meat showed lower concentration, increased after washing with the water. This implies that the water used for washing the meat probably contributed to the level of these minerals in the meat also.
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