Document Detail

Antioxidant capacity of human milk: effect of thermal conditions for the pasteurization.
MedLine Citation:
PMID:  18477059     Owner:  NLM     Status:  MEDLINE    
AIM: Pasteurization is the thermal treatment usually applied in milk banks to eliminate the risk of transmission of infectious agents. The aim of this study was to investigate the effect of heat processing upon the antioxidant properties of human milk. METHODS: Milk samples collected from 31 healthy women were subjected to two different pasteurization techniques: Holder pasteurization (63 degrees C for 30 min) and high pasteurization (75 degrees C for 15 sec) and oxidative stress markers (glutathione, glutathione peroxidase activity, malondialdehyde and total antioxidant capacity) were determined in comparison to fresh milk. RESULTS: Malondialdehyde concentration was the same in all samples, while there was a decrease in glutathione concentration and total antioxidant capacity in milk samples subjected to thermal processing versus fresh milk samples. However, the drop in these parameters was seen to be significantly greater when applying Holder pasteurization. Both thermal treatments induced considerable and similar loss of glutathione peroxidase activity. CONCLUSION: Thermal processing of human milk implies a decrease in its antioxidant properties but, when necessary, high pasteurization should be the election method in terms of milk oxidative status.
Dolores Silvestre; Maria Miranda; Maria Muriach; Inmaculada Almansa; Enrique Jareño; Francisco Javier Romero
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Publication Detail:
Type:  Journal Article     Date:  2008-05-12
Journal Detail:
Title:  Acta paediatrica (Oslo, Norway : 1992)     Volume:  97     ISSN:  0803-5253     ISO Abbreviation:  Acta Paediatr.     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-07-29     Completed Date:  2008-11-18     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9205968     Medline TA:  Acta Paediatr     Country:  Norway    
Other Details:
Languages:  eng     Pagination:  1070-4     Citation Subset:  IM    
Department of Food Science and Technology. CEU-Cardenal Herrera University, Valencia, Spain.
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MeSH Terms
Antioxidants / analysis*
Glutathione / analysis
Glutathione Peroxidase / analysis
Hot Temperature* / adverse effects
Hydrostatic Pressure
Malondialdehyde / analysis
Milk, Human / chemistry*
Oxidative Stress
Reg. No./Substance:
0/Antioxidants; 542-78-9/Malondialdehyde; 70-18-8/Glutathione; EC Peroxidase

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