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Results of pathomorphological investigation of rat organs fed during 1 and 3 months the diet containing 8% of protein as milk whey protein partly hydrolysed by enzymes and enriched by lactates (SGOL-1) are presented. The conducted investigation have not revealed of pathological effect of a product SGOL-1 on morphological structures of investigated internal bodies and tissues of the laboratory animals. A increase of body mass of animals and contents of RNAS in cells of practically all bodies and tissues of the animals were also marked.

The results of the investigations conducted have shown that most milk samples analyzed contained from 2 to 55.2 mg/l nitrates (P50 = 27.2 mg/l), dried milk and dry milk mixtures contained from 56.5 to 91.0 mg/kg nitrates (P50 = 72.9 mg/kg). The amount of nitrates detected in most products prepared at special milk centers for child nutrition did not exceed the mean level of nitrates in the whole milk. However, 12% of milk samples and 6% of dry milk mixtures contained significantly higher levels of nitrates. A conclusion has been made on the necessity of testing and regulation of nitrate content in the milk and milk products for child nutrition.