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Profiles of non-essential trace elements in ewe and goat milk and their yoghurt, torba yoghurt and whey

2011; Taylor & Francis; Volume: 4; Issue: 4 Linguagem: Inglês

10.1080/19393210.2011.617520

1939-3229

Hasan Şanal, Zehra Güler, Young W. Park,

Selenium in Biological Systems

Abstract The objectives of this study were to determine the profiles of non-essential trace elements in ewes' and goats' milk and manufactured products, such as yoghurt, torba yoghurt and whey, as well as changes in trace element content during Torba yoghurt-making processes. Concentrations of non-essential trace elements in ewe (Awassi) and goat (Damascus) milk and their yoghurt, torba yoghurt and whey were quantitatively determined by simultaneous inductively coupled plasma optical emission spectrometer (ICP–OES), after microwave digestion. Aluminium, antimony, arsenic, boron, beryllium, cadmium, nickel, lead, silver, titanium, thallium and vanadium were determined for both types of milk and their products. Barium was not detected in goats' milk or their products. Among all trace elements, boron was the most abundant and beryllium was least present in milk and the manufactured products. The results showed that goats' and ewes' milk and their manufactured products may be a source of 13 non-essential trace elements. Keywords: ewe milkgoat milkyoghurttorba yoghurtwheynon-essential trace elements Acknowledgements This work was financed by the Research Foundation of Mustafa Kemal University (project no. 06 M 1502). The authors thank Dr. Mahmut Keskin and Dr. Sabri Gül of the Animal Science Department of Mustafa Kemal University for supplying the ewe and goat milk.