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Lead and cadmium concentrations in goat, cow, sheep, and buffalo milks from different regions of Iran

Author:
Rahimi, Ebrahim
Source:
Food chemistry 2013 v.136 no.2 pp. 389-391
ISSN:
0308-8146
Subject:
animal age, atomic absorption spectrometry, buffalo milk, cadmium, dairy cows, goats, lead, sheep, Iran
Abstract:
In total, 137 goat, cow, sheep, and buffalo milk samples were collected in different regions of Iran and analysed to determine concentrations of lead and cadmium by a graphite furnace atomic absorption spectrometric method. The mean recovery of the analytical method was 96.3% and 104% for cadmium and lead, respectively. The mean lead and cadmium contents obtained from 137 samples were 1.93±1.48 (range: 0.18–6.11ng/ml) and 9.51±4.93ng/ml (range: 1.84ng/ml–30.50ng/ml), respectively. Lead concentration in 8.1% of sheep and 1.9% of cow milk samples was higher than the newly established Codex standard. The mean concentrations of cadmium and lead in animals aged ⩽3years (n=80; 1.40±1.05ng/ml and 7.91±3.60ng/ml, respectively) were lower than in animals aged >3years (n=58; 2.69±1.67ng/ml and 11.8±5.71ng/ml, respectively).
Agid:
557158