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AJVS. 2022; 74(1): 95-101

Monitoring of Toxic Heavy Metal Residues in Infant Dried Dairy Products

Mokhtar M.F Abu-Shaala, Giuma. E Elhafi, Nasser.T Ehmeza, Amr A. Amer.


Milk and dairy products are a unique and essential for growth and healthy development not only for the young but also for all ages, the present work was performed to determine some toxic heavy metals in some dried dairy products sold in Alexandria City. A total of 120 samples representative as 60 milk powder,30 infant foods and 30 dried ice cream mix were collected from groceries and supermarkets and analysed for toxic heavy metal residues including (Pb, Cd, Al and Sn) by using atomic absorption flame emission spectrophotometer. The obtained results revealed that the mean(SD) level of Lead in the examined of milk powder, infant food and dried ice cream mix samples were of 0.185 ± 0.138, 0.134 ± 0.033 and 0.159 ± 0.185 ppm, the samples exceeded the permissible stated by Egyptian standards (0.02ppm) were 18(30%), 8(26.66%), and 13(43.33%), respectively. While, Cadmium residues was detected in 13 (21.66%), 7 (23.33%) and 11 (36.66%), the samples exceeded the Egyptian standards permissible limit (0.05 ppm) were 7 (11.66%), 3 (10%) and 6 (20%), respectively. Aluminium was detected in 10 (16.66%), 5 (16.66 %) and 7 (23.33 %) of examined milk powder, infant food and dried ice cream mix, only 3(5%) of examined milk powder samples were exceeded the permissible limit (0.5 ppm). Tin was detected in 13(21.66%), 9 (30 %) and 10 (33.33 %) of examined milk powder, infant food and dried ice cream mix, respectively. All positive samples were within the Egyptian standards permissible limit (200 ppm). Suggestive measures were discussed to prevent or minimize the levels of toxic heavy metals in dried dairy products.

Key words: Milk powder, Infant food, dried ice cream mix, Heavy metals

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