American Journal of Food and Nutrition
ISSN (Print): 2374-1155 ISSN (Online): 2374-1163 Website: http://www.sciepub.com/journal/ajfn Editor-in-chief: Mihalis Panagiotidis
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American Journal of Food and Nutrition. 2014, 2(5), 92-94
DOI: 10.12691/ajfn-2-5-3
Open AccessArticle

Lead Concentrations in Raw Cows' Milk from Fars Province of Iran

Mohammad Nejatolahi1, Farzad Mehrjo2, , Ali Sheykhi1 and Meghdad Bineshpor3

1Department of Environmental Science and Natural Resource, Malayer University, Malayer, Iran

2MSc. Student, Environmental Sciences Research Institute, Shahid Beheshti University, Tehran, Iran

3MSc. Student, Islamic Azad UniversityScience and Research, Ahvaz, Iran

Pub. Date: November 12, 2014

Cite this paper:
Mohammad Nejatolahi, Farzad Mehrjo, Ali Sheykhi and Meghdad Bineshpor. Lead Concentrations in Raw Cows' Milk from Fars Province of Iran. American Journal of Food and Nutrition. 2014; 2(5):92-94. doi: 10.12691/ajfn-2-5-3

Abstract

In February 2012, 96 cow milk samples were collected from different cities of Fars province and investigated using atomic absorption spectroscopy. The mean recovery of the analytical method at 10, 20, and 40 ng/ml was 85 ± 5%. Additionally, the mean level of lead content obtained from 96 samples was 10.26 ng/ml, with a range from 1.3 to 23.2 ng/ml, and a standard deviation of 4.31. Moreover, the lead concentration in 5% of the milk samples was higher than the newly established Codex standard. It is worthwhile to mention that significantly higher Pb levels were witnessed in animals aged older than 3 years (p < 0.01). In future studies, a greater number of milk samples added to grass samples from different animals in various regions of Fars should be analyzed to confirm the absence of heavy metals and toxicological risks.

Keywords:
heavy metals lead milk fars province atomic absorption spectroscopy

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