Comparative Analysis of Physicochemical Parameters in Raw and Evaporated Milk from Sebha City, Libya
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Milk, Heavy Metals, Minerals, Protein, Urea, Fats, Salts
Abstract
The present study was carried out to determine chemical and physical properties and heavy metals in order to evaluate the potential health risks to humans. A total of fourteen randomly collected milk samples (7 raw, 3 concentrated, and 4 whole milk samples) were collected from different outlets in Sebha, Libya, in order to study the physicochemical parameters, minerals, and heavy metals of milk samples. The chemical composition was determined by protein, fats, moisture, ash, fiber, and carbohydrates. The moisture content (82.6%), pH (6.61), acidity (0.27%), density (1.03 g/ml), total solids (16.8%), fat (3.22%), protein (3.16%), total sugar (6.15%), sucrose (1.68 g/100 ml), NaCl (0.54%), and urea (10.48%) were reported. The pH values had the following order: whole>concentrated>raw milk samples. The mean concentrations (mg/l) of metals in analyzed milk samples ranged between K (4.50E-03), Na (7.00E-03), Ca (20.2E-03), Mg (45.0E-03), Cd (5.60E-03), and Zn (4.00E-03).
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