[Comparative characteristics of oxidative modification intensity of proteins in infant milk formulas].
Autor: | Vysokogorskiy VE; Omsk State Agrarian University named after P.A. Stolypin, 644008, Omsk, Russian Federation., Rosenfeld YG; Omsk State Agrarian University named after P.A. Stolypin, 644008, Omsk, Russian Federation., Strelchik NK; Omsk State Agrarian University named after P.A. Stolypin, 644008, Omsk, Russian Federation., Рodolnikova YA; Omsk State Agrarian University named after P.A. Stolypin, 644008, Omsk, Russian Federation. |
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Jazyk: | ruština |
Zdroj: | Voprosy pitaniia [Vopr Pitan] 2023; Vol. 92 (5), pp. 103-109. Date of Electronic Publication: 2023 Sep 26. |
DOI: | 10.33029/0042-8833-2023-92-5-103-109 |
Abstrakt: | Cow's milk is mainly used in the production of infant milk formulas. However, the protein composition of cow's milk differs significantly from the proteome of breast milk. In addition, various technological factors significantly affect the properties and structure of proteins, susceptibility to oxidative processes. This article uses a method of complex evaluation of the products of oxidative modification of proteins to characterize the total level of carbonyl compounds with the analysis of the ratio of aldehyde-dinitrophenylhydrazones (ADNPH) and ketone-dinitrophenylhydrazones (CDNPH), which increases the possibility of determining the severity of protein damage. The purpose of the study was to compare the level of indicators of oxidative modification of proteins in adapted milk infant formulas. Material and methods . The research objects were 4 dry adapted milk infant formulas, as well as ultra-pasteurized cow's milk. The intensity of oxidative modification of milk proteins was determined spectrophotometrically by the reaction of carbonyl compounds with dinitrophenylhydrazine (DNFG). Results . With spontaneous oxidation in infant formula, the total area of carbonyl derivatives of proteins (S Competing Interests: The authors declare no conflict of interest. (Copyright© GEOTAR-Media Publishing Group.) |
Databáze: | MEDLINE |
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