الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Humans require various micronutrients including silicon (Si), Zinc (Zn), iron (Fe) and manganese (Mn) to functional property. Recently, there is interest in nutritional microelements bone (silicon, zinc, manganese and copper) in the diet; there intake is positively associated with bone mass. Although biological interest in these elements have recently increased, limited literature exists on the elements especially silicon concentration in foods. These elements mostly deficiency in human societies especially Egypt and African countries. Therefore, the object of this study concerned with three parts. Part 1: Determination of silicon content in from different species of milk and some dairy products. Milk from different species (buffalo, cow, goat, camel) and some dairy products commonly consumed in Egypt (fresh skim milk, skim milk powder, soft cheese, processed cheese and yogurt), were analyzed for silicon concentration. The samples were analyzed using Agilent microwave plasma atomic emission spectrometry following mcrowave – assisted digestion with nitric acid. The results can be summarized as follows: Silicon plays an important role in bone formation and connective tissue metabolism. Although biological interest in this element has recently increased, limited literature exists on the silicon concentration of foods. To further understanding of the relationship between dietary silicon and human health, reliable silicon concentration in food is required. Therefore, the object of this study concerned to evaluate the silicon concentration in some Egyptian milk and some dairy products. Milk from different species (buffalo, caw, goat, camel) and some dairy products commonly consumed in Egypt (fresh skim milk, skim milk powder, soft cheese, processed cheese and yogurt) were analyzed for silicon concentration. The samples were analyzed using Agilent microwave plasma atomic emission spectrometry following microwave – assisted digestion with nitric acid.