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Characterization of iron, copper and zinc levels in the colostrum of mothers of term and pre-term infants before and after pasteurization.
da Costa, Roseli S S; do Carmo, Maria G Tavares; Saunders, Cláudia; de Jesus, Edgar F O; Lopes, Ricardo T; Simabuco, Silvana M.
Afiliação
  • da Costa RS; UFRJ/CCS/Instituto de Nutrição, Bloco J, 2o-Andar-21944590, Ilha do Fundão, Instituto Fernandes Figueira, FIOCRUZ, Rio de Janeiro, RJ, Brasil.
Int J Food Sci Nutr ; 54(2): 111-7, 2003 Mar.
Article em En | MEDLINE | ID: mdl-12701367
Pasteurization is a thermal treatment applied to the milk used in human milk banks so as to provoke the thermic inactivation of pathogenic micro-organisms, with the aim of avoiding contamination of milk that will be offered to new-born infants in clinical conditions very often demanding special care. The literature has very little data available relating to the effect of pasteurization on the concentration of oligo-elements in human milk. The objective of this study was to evaluate the effect of pasteurization on the concentrations of iron (Fe), copper (Cu) and zinc (Zn) in the colostrum of mothers of pre-term (PT) and term (T) infants. Samples were collected from the day of birth to the seventh day after birth. The oligo-elements were analyzed using the total reflection X-ray fluorescence technique with synchrotron radiation. The following results of Fe, Cu and Zn (means +/- SD) were obtained for the PT and T colostrum samples, non-pasteurized and pasteurized, respectively: PT: 1.96 +/- 0.73 mg/l Fe/Zn/5.39 +/- 2.73 mg/l Zn; T: 1.71 +/- 1.01 mg/l Fe/1.46 +/- 0.99 mg/l Fe, 0.54 +/- 0.29 mg/l Cu/0.49 +/- 0.19 mg/l Cu, 6.97 +/- 2.82 mg/l Zn/6.75 +/- 2.62 mg/l Zn. There was a significant reduction in the levels of Fe, Cu and Zn in the samples of pasteurized colostrum. These results suggest that, despite the observance of a diminution in the levels of Fe, Cu and Zn in the samples of pasteurized colostrum, the values fell within the acceptable range for the specific nutritional needs of new-born infants during this period of lactation.
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Esterilização / Colostro / Fenômenos Fisiológicos da Nutrição do Lactente / Trabalho de Parto Prematuro / Metais Tipo de estudo: Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Female / Humans / Newborn / Pregnancy Idioma: En Revista: Int J Food Sci Nutr Assunto da revista: CIENCIAS DA NUTRICAO Ano de publicação: 2003 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Buscar no Google
Adicionar na Minha BVS
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Esterilização / Colostro / Fenômenos Fisiológicos da Nutrição do Lactente / Trabalho de Parto Prematuro / Metais Tipo de estudo: Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Female / Humans / Newborn / Pregnancy Idioma: En Revista: Int J Food Sci Nutr Assunto da revista: CIENCIAS DA NUTRICAO Ano de publicação: 2003 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido