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Redox properties of transitional milk from mothers of preterm infants

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2018
Authors
Minic, Simeon
Jesic, Milos
Đurović, Dijana
Miletić, Srđan
Lugonja, Nikoleta
Marinković, Vesna
Nikolić-Kokić, Aleksandra
Spasić, Snežana
Vrvić, Miroslav
Article (Published version)
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Abstract
AimThere is a discrepancy between the amount of transitional milk produced by mothers of preterm infants and the low capacity of premature infants to consume it. This milk can be used in milk banks, but previous studies found that there are large variations in the level of host-defence proteins in individual samples of milk from mothers of premature infants, which implies that large individual variations in antioxidative defence composition are also possible. MethodsMilk samples were collected from 20 healthy mothers of preterm infants. We determined the values for non-enzymatic antioxidative capacity parameters (oxygen radical absorbance capacity (ORAC)), static oxidation-reduction potential (ORP), activities of antioxidant defence enzymes and the amount of vitamin C in whole milk, skim and whey fractions of transitional milk. ResultsThe main low-molecular-weight antioxidant in transitional milk is vitamin C and most of it is contained in whey. ORAC is higher in whole transitional mil...k than in skim milk and whey, and ORP is lower in whole transitional milk than that in skim milk and whey. Antioxidative enzyme activities are similar in all individual samples of transitional milk from mothers of preterm infants. ConclusionsOur results indicate that transitional milk of mothers of preterm infants shows slow individual variations in antioxidative defence composition; therefore, it can be used in human milk banks.

Keywords:
oxidation-reduction potential - ORP / oxygen radical absorbance capacity - ORAC / preterm transitional milk / total antioxidant capacity - TAC
Source:
Journal of Paediatrics and Child Health, 2018, 54, 2, 160-164
Publisher:
  • Wiley, Hoboken

DOI: 10.1111/jpc.13676

ISSN: 1034-4810

PubMed: 28791778

WoS: 000424650000010

Scopus: 2-s2.0-85041408288
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/2471
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