Determination of heavy metals in foods

Concentrations of fourteen trace elements were determined by the Association of Official Analytical Chemists Methods, in some commercial infant formulas, weaning food, and breakfast foods samples, collected from different supermarkets and pharmacies in Cairo, Egypt from 2007 to 2008. The average concentrations of the macro, micro and heavy metals, detected in samples on the basis of dry weight, were 0.67 mg kg-1 for cadmium, 1.84 mg kg-1 for chromium, 8.21 mg Kg-1 for copper, 33.86 mg Kg-1 for Zinc, 15.5 1 mg Kg-1 for Aluminum, 112.14 mg Kg-1 for Iron, 0.047 mg Kg-1 for silver, 0.0 mg Kg-1 for mercury and arsenic, 0.22 mg Kg-1 for tin, 0.03 mg kg-1 for lead, 18.09 mg Kg-1 for manganese, 0.89 mg Kg-1 for nickel and 0.068 for sodium. The results demonstrated that low concentrations of most of heavy metals were found in baby foods and breakfast foods samples under investigation. The levels of lead and arsenic were within acceptable levels for infants consumption as recommended by the Egyptian Standards, while copper concentrations were within the maximum residual levels recommended. The mean lead concentration was 0.032 mg kg-1 slightly higher than the limit of lead in infant formulas of EC Regulation (0.02 mg kg-1). The effect of dry yeast on the concentrations of heavy metals for examined infants formulas were studied.

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“…Cool solution and transfer to 25 ml volumetric flask, and make up to volume with H2O. Kenner 1973 and.…”

Section: Sample Preparation and Digestionmentioning

confidence: 99%

Determination of Heavy Metals in Egyptian Infants Formulas, Weaning Foods and Some Breakfast Foods.

Yehia¹,

Bassuony²,

Karmany³

et al. 2009

Journal of Food and Dairy Sciences

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“…Benzothiazole and its fused derivatives have shown a wide range of remarkable activities, viz. fungicidal, analgesic, anti-in¯ammatory, anticonvulsant, anaesthetic and pesticide (Di Braccio et al, 1986;Evans, 1974;Baetz, 1973;Mehra et al, 1980;Bartovic et al, 1995;Khan & Rastogi, 1991).…”

Section: Commentmentioning

confidence: 99%

“…The authors thank the staff for all their help and advice. Braccio et al, 1986;Evans, 1974;Baetz, 1973;Mehra et al, 1980;Bartovic et al, 1995;Khan & Rastogi, 1991).…”

Section: Re®nementmentioning

confidence: 99%

11-Chloro-5,7-dihydro-6H-benzothiazolo[2,3-b]benzo[h]quinazoline

et al. 2001

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“…It has been usea in studies of food extracts (21), brines (22,23), Industrial waste water (l8, 24), sea water (25)(26)(27)(28)(29) and others (30)(31)(32). However, this is a gel-type resin which undergoes pronounced shrinking and swelling and has rather slow kinetics.…”

mentioning

confidence: 99%

The synthesis, characterization, and application of chelating ion-exchange resins

Moyers¹

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Determination of heavy metals in foods

Cited by 24 publications

References 4 publications

Determination of Heavy Metals in Egyptian Infants Formulas, Weaning Foods and Some Breakfast Foods.

Determination of Heavy Metals in Egyptian Infants Formulas, Weaning Foods and Some Breakfast Foods.

11-Chloro-5,7-dihydro-6H-benzothiazolo[2,3-b]benzo[h]quinazoline

The synthesis, characterization, and application of chelating ion-exchange resins

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