Determination Of The Level Of Heavy Metals In Cows Milk Collected From Butajirra And Meskan Districts South Central Ethiopia

Milk is a complete food useful to promote growth and development of the infant mammals contains vital nutrients including proteins, essential fatty acids, lactose, vitamins and mineraa balanced proportion. However, milk can also contain chemical hazards and contaminants, as heavy metals which can be a risk for the health of the consumer. Various industrial environmental contamination of soil, waters, foods and plants with these metals leads to tincorporation into the cow’s milk. Therefore, this study was aimed at determining the level oheavy metals in cow’s milk collected from Butajirra and Meskan districts, south central EthioFresh cows’ milk was collected from one hundred ninety-three healthy and lactating coSamples were digested by the optimized microwave digestion method using HNOrn3rnAnalysis was done using ICP-OES for Cadmium (Cd), Chromium (Cr), Copper (Cu), Iron (Manganese (Mn) Nickel (Ni), Lead (Pb), and Zinc (Zn) and MP-AES for Calcium (Magnesium (Mg), Potassium (K) and Sodium (Na). Of all the elements determined Ni wasdetected in the milk samples. The concentrations of Cd, Cr, Cu, Fe, Mn, Pb, Zn, Ca, Mg, K Na in the studied milk samples were in the ranges of: 0.0 – 0.03, 0.0 – 0.4, 0.03 – 1.1, 0.0 –0.0 – 0.7, 0.0 – 12.3, 0.0 – 8.2, 380.1 – 532.4, 159.6 – 397.9, 1114.2 – 1685.8 and 495.9 – 1298.ppm respectively. These values were compared with guidelines of different internatiorganizations for food and other available literatures. Since EDI values of all the analyzed meare below the RDA values, milk consumption at this level is safe even for children. Cd, Cr,Mn, Pb, Zn and Mg were found over the permissible limits in 12 %, 6 %, 53 %, 65 %, 82 %, and 100 % of the samples respectively. Special attention should be given to the level of hemetals in milk, since they are difficult to remove from the body and are dangerous to health othey accumulate to a level greater than their limit. rn and H

Get Full Work

Report copyright infringement or plagiarism