Podolnikova Yu. A. 1
Vysokogorskiy V.E. 1
Voronova T.D. 1
Lazareva O.N. 1
1 FGBOU VPO «Omsk Stolypin State Agrarian University»
The present paper determines the indices of free-radical oxidation: lipid peroxidation density and protein oxidizing modification of cows’ milk taken from the suburban zone (5-15 km from Omsk city) and farms located 100-150 km to the north (forest zone) and the south (steppe zone) from the industrial center. The received results prove that having no essential changes of the majority of the lipid peroxidation indices, significant differences among the markers of oxidizing protein modification were established. The rate of metal carbonyl derivatives of aliphatic aldehyde-dinitrophenylhydrasone of the neutral character of the milk in the suburban zone of Omsk city is 41% (p=0.007) higher than the milk got in northern districts of Omsk region. In the suburb it was revealed that keton-dinitrophenylhydrasone rate is 48% higher (p=0.022) and 47% higher (p=0.001), aldehyde – dinitrophenylhydrasone rate is 29% higher (p=0.043) and 36% higher (p=0.004), and basic keton-dinitrophenylhydrasone rate – 33% higher (p=0.049) and 56% (p=0.0033) in comparison with the milk taken from southern and northern districts relatively. Decrease of thiolic groups of the proteins of the milk taken from the suburb of the industrial center was stated. The given results prove that the proteins can go through oxidizing modification more under urbanization factors than natural ones.