Freezing and thawing effects on fat, protein, and lactose levels of human natural milk administered by gavage and continuous infusion

Objectives: to analyze the changes in human milk macronutrients: fat, protein, and lactose in natural human milk (raw), frozen and thawed, after administration simulation by gavage and continuous infusion. Method: an experimental study was performed with 34 human milk samples. The infrared spectroph...

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Main Authors: Andrea D. Abranches, Fernanda V.M. Soares, Saint Clair G. Junior, Maria Elisabeth L. Moreira
Format: Article
Language:Portuguese
Published: Brazilian Society of Pediatrics 2014-07-01
Series:Jornal de Pediatria (Versão em Português)
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2255553614000792
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author Andrea D. Abranches
Fernanda V.M. Soares
Saint Clair G. Junior
Maria Elisabeth L. Moreira
author_facet Andrea D. Abranches
Fernanda V.M. Soares
Saint Clair G. Junior
Maria Elisabeth L. Moreira
author_sort Andrea D. Abranches
collection DOAJ
description Objectives: to analyze the changes in human milk macronutrients: fat, protein, and lactose in natural human milk (raw), frozen and thawed, after administration simulation by gavage and continuous infusion. Method: an experimental study was performed with 34 human milk samples. The infrared spectrophotometry using the infrared analysis equipment MilkoScan Minor® (Foss, Denmark) equipment was used to analyze the macronutrients in human milk during the study phases. The analyses were performed in natural (raw) samples and after freezing and fast thawing following two steps: gavage and continuous infusion. The non‐parametric Wilcoxon test for paired samples was used for the statistical analysis. Results: the fat content was significantly reduced after administration by continuous infusion (p < 0.001) during administration of both raw and thawed samples. No changes in protein and lactose content were observed between the two forms of infusion. However, the thawing process significantly increased the levels of lactose and milk protein. Conclusion: the route of administration by continuous infusion showed the greatest influence on fat loss among all the processes required for human milk administration.
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spelling doaj.art-d177ca41635841fcaeb559ddec5917422022-12-22T03:56:14ZporBrazilian Society of PediatricsJornal de Pediatria (Versão em Português)2255-55362014-07-0190438438810.1016/j.jpedp.2014.05.003Freezing and thawing effects on fat, protein, and lactose levels of human natural milk administered by gavage and continuous infusionAndrea D. AbranchesFernanda V.M. SoaresSaint Clair G. JuniorMaria Elisabeth L. MoreiraObjectives: to analyze the changes in human milk macronutrients: fat, protein, and lactose in natural human milk (raw), frozen and thawed, after administration simulation by gavage and continuous infusion. Method: an experimental study was performed with 34 human milk samples. The infrared spectrophotometry using the infrared analysis equipment MilkoScan Minor® (Foss, Denmark) equipment was used to analyze the macronutrients in human milk during the study phases. The analyses were performed in natural (raw) samples and after freezing and fast thawing following two steps: gavage and continuous infusion. The non‐parametric Wilcoxon test for paired samples was used for the statistical analysis. Results: the fat content was significantly reduced after administration by continuous infusion (p < 0.001) during administration of both raw and thawed samples. No changes in protein and lactose content were observed between the two forms of infusion. However, the thawing process significantly increased the levels of lactose and milk protein. Conclusion: the route of administration by continuous infusion showed the greatest influence on fat loss among all the processes required for human milk administration.http://www.sciencedirect.com/science/article/pii/S2255553614000792Human milkNutritionNewborn
spellingShingle Andrea D. Abranches
Fernanda V.M. Soares
Saint Clair G. Junior
Maria Elisabeth L. Moreira
Freezing and thawing effects on fat, protein, and lactose levels of human natural milk administered by gavage and continuous infusion
Jornal de Pediatria (Versão em Português)
Human milk
Nutrition
Newborn
title Freezing and thawing effects on fat, protein, and lactose levels of human natural milk administered by gavage and continuous infusion
title_full Freezing and thawing effects on fat, protein, and lactose levels of human natural milk administered by gavage and continuous infusion
title_fullStr Freezing and thawing effects on fat, protein, and lactose levels of human natural milk administered by gavage and continuous infusion
title_full_unstemmed Freezing and thawing effects on fat, protein, and lactose levels of human natural milk administered by gavage and continuous infusion
title_short Freezing and thawing effects on fat, protein, and lactose levels of human natural milk administered by gavage and continuous infusion
title_sort freezing and thawing effects on fat protein and lactose levels of human natural milk administered by gavage and continuous infusion
topic Human milk
Nutrition
Newborn
url http://www.sciencedirect.com/science/article/pii/S2255553614000792
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