Investigation of Cadmium Contamination of Raw Milk in Goats and Sheep by Atomic Absorption Spectrometer Method in Chaharmahal and Bakhtiari Province, Iran

Goat and sheep milk has received much attention due to the amount of salts, breeding and increase compared to cow's milk, and based on this, it is important to evaluate their quality in terms of chemical consumption. The purpose of this study was to investigate the consumption of raw milk in goats and sheep to cadmium by atomic absorption spectrometer method in Chaharmahal and Bakhtiari province.

In this study, 74 samples of raw goat and sheep milk from Lordegan, Saman, Kiar, Kohrang and Ardel cities were randomly collected and transported to the specialized food hygiene laboratory of Shahrekord Azad University for testing. This test was performed according to the AOAC standard. This cadmium was measured based on the furnace atomic absorption spectrometer (GFAAS) method.

The raw amount of cadmium in sheep milk sample was 3.31±1.53 and in goat milk was 2.33±1.23 ng/g. This range is within the normal range. The results of the study showed that raw cadmium in all sheep and goat milk samples was lower than the allowed amount reported by Codex (500 ng/g).

According to the results obtained from the present study, cadmium in sheep and goat milk samples is low and there is a risk of consuming consumables with the sample, but the consumables of sheep and goat milk obtained from industrial areas such as Lordegan are high compared to other areas. So, it is better to avoid in these areas and near busy highways and the aforementioned factories, including petrochemicals.