Nutrition evaluation by bioavailability: study of some essential trace elements of infant foods
1989
Kakker, S. | Kappor, A.C. | Mowlah, G.
Bioavailability of trace elements (iron, copper and zinc) in three commercially available infant foods and a synthetic diet were assessed by feeding four groups of young male Waster rats. The results revealed that rats in all the groups were on positive iron, copper and zinc balance. Iron absorption and retention was maximum in rats fed on synthetic diet. Absorption of copper ranged from 14.2% (synthetic diet) to 37.7% (amulspray). Retention of copped was the highest (23.1%) in rats fed on amulspray. Zinc absorption was maximum in rats fed on synthetic diet, whereas its retention was highest in span formula fed rats. Bioavailability of iron by in vitro procedure revealed that sapan, infanto and amulspray and synthetic diet were found to contain 13.57, 14.43, 10.36 and 13.20% of available iron, respectively. Comparison of results from in vitro and in vivo methods shows a good agreement between these two methods.
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