The Macronutrients in Human Milk Change after Storage in Various Containers

The concentrations of macronutrients in human milk can be influenced by various processes, such as storage, freezing, and thawing, that are performed by lactating working mothers and breast milk banks. We evaluated the impact of various containers on the nutrient concentrations in human milk. Method...

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Main Authors: Yu-Chuan Chang, Chao-Huei Chen, Ming-Chih Lin
Format: Article
Language:English
Published: Elsevier 2012-06-01
Series:Pediatrics and Neonatology
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Online Access:http://www.sciencedirect.com/science/article/pii/S1875957212000599
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author Yu-Chuan Chang
Chao-Huei Chen
Ming-Chih Lin
author_facet Yu-Chuan Chang
Chao-Huei Chen
Ming-Chih Lin
author_sort Yu-Chuan Chang
collection DOAJ
description The concentrations of macronutrients in human milk can be influenced by various processes, such as storage, freezing, and thawing, that are performed by lactating working mothers and breast milk banks. We evaluated the impact of various containers on the nutrient concentrations in human milk. Methods: A total of 42 breast milk samples from 18 healthy lactating mothers were collected. A baseline macronutrient concentration was determined for each sample. Then, the breast milk samples were divided and stored in nine different commercial milk containers. After freezing at -20°C for 2 days, the milk samples were thawed and analyzed again. A midinfrared human milk analyzer (HMA) was used to measure the protein, fat, and carbohydrate contents. Results: There was a significant decrease in the fat content following the storage, freezing, and thawing processes, ranging from 0.27–0.30 g/dL (p=0.02), but no significant decrease in energy content (p=0.069) was noted in the nine different containers. There were statistically significant increases in protein and carbohydrate concentrations in all containers (p=0.021 and 0.001, respectively), however there were no significant differences between the containers in terms of fat, protein, carbohydrate, or energy contents. Conclusion: Human milk, when subjected to storage, freezing, and thawing processes, demonstrated a significant decrease in fat content (up to 9% reduction) in various containers. It is better for infants to receive milk directly from the mother via breastfeeding. More studies are warranted to evaluate the effects of milk storage on infant growth and development.
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spelling doaj-art-f5684cf30fde44cd80eee7005b5e3fcc2025-08-20T01:51:06ZengElsevierPediatrics and Neonatology1875-95722012-06-0153320520910.1016/j.pedneo.2012.04.009The Macronutrients in Human Milk Change after Storage in Various ContainersYu-Chuan Chang0Chao-Huei Chen1Ming-Chih Lin2Department of Pediatrics, Chang Bing Show Chwan Memorial Hospital, Changhua, TaiwanDivision of Neonatology, Department of Pediatrics, Taichung Veterans General Hospital, Taichung, TaiwanDivision of Neonatology, Department of Pediatrics, Taichung Veterans General Hospital, Taichung, TaiwanThe concentrations of macronutrients in human milk can be influenced by various processes, such as storage, freezing, and thawing, that are performed by lactating working mothers and breast milk banks. We evaluated the impact of various containers on the nutrient concentrations in human milk. Methods: A total of 42 breast milk samples from 18 healthy lactating mothers were collected. A baseline macronutrient concentration was determined for each sample. Then, the breast milk samples were divided and stored in nine different commercial milk containers. After freezing at -20°C for 2 days, the milk samples were thawed and analyzed again. A midinfrared human milk analyzer (HMA) was used to measure the protein, fat, and carbohydrate contents. Results: There was a significant decrease in the fat content following the storage, freezing, and thawing processes, ranging from 0.27–0.30 g/dL (p=0.02), but no significant decrease in energy content (p=0.069) was noted in the nine different containers. There were statistically significant increases in protein and carbohydrate concentrations in all containers (p=0.021 and 0.001, respectively), however there were no significant differences between the containers in terms of fat, protein, carbohydrate, or energy contents. Conclusion: Human milk, when subjected to storage, freezing, and thawing processes, demonstrated a significant decrease in fat content (up to 9% reduction) in various containers. It is better for infants to receive milk directly from the mother via breastfeeding. More studies are warranted to evaluate the effects of milk storage on infant growth and development.http://www.sciencedirect.com/science/article/pii/S1875957212000599human milkinfrared analysisstorage container
spellingShingle Yu-Chuan Chang
Chao-Huei Chen
Ming-Chih Lin
The Macronutrients in Human Milk Change after Storage in Various Containers
Pediatrics and Neonatology
human milk
infrared analysis
storage container
title The Macronutrients in Human Milk Change after Storage in Various Containers
title_full The Macronutrients in Human Milk Change after Storage in Various Containers
title_fullStr The Macronutrients in Human Milk Change after Storage in Various Containers
title_full_unstemmed The Macronutrients in Human Milk Change after Storage in Various Containers
title_short The Macronutrients in Human Milk Change after Storage in Various Containers
title_sort macronutrients in human milk change after storage in various containers
topic human milk
infrared analysis
storage container
url http://www.sciencedirect.com/science/article/pii/S1875957212000599
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