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    Cholesterol
    (CRC Press, 2009) Güler, Zehra; Park, Young W.
    Cholesterol is the principal mammalian sterol containing 27 carbon atoms with a combination of steroid and alcohol (Figure 10.1). Th e name cholesterol originates from the Greek: chole- (bile) and stereos (solid), and the chemical suffi x-ol for an alcohol [1]. Cholesterol is required by all the mammalian cells for the proper functioning of cellular membranes [2]. Cholesterol is also a precursor of bile acids and steroidal hormones, such as progesterone, testosterone, estradiol, cortisol, and vitamin D [3]. © 2010 by Taylor & Francis Group, LLC.
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    Profiles of non-essential trace elements in ewe and goat milk and their yoghurt, torba yoghurt and whey
    (Taylor & Francis Ltd, 2011) Sanal, Hasan; Guler, Zehra; Park, Young W.
    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.