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Free Amino Acid Content in Standard Infant Formulas: Comparison with Human Milk
Abstract
OBJECTIVE: To compare the concentration of non-protein nitrogen (NPN) and free amino acids (FAA) in powdered and liquid commercial formulas with that in human milk. METHODS: The non-protein nitrogen and FAAs in pooled breast milk was compared with that in 11 protein-modified starting infant formulas (seven powdered, four liquid whey-predominant formulas) and one powdered soy-formula. Human milk was collected at the end of each feeding (hindmilk) over 24 hours in a group of 40 healthy lactating women after delivery of full-term infants at age one month. RESULTS: In human milk glutamic acid plus glutamine and taurine were the prevalent amino acids, accounting for around 50% total FAA. In the analysed formulas the total FAA fraction was 10% or even less than in human milk, mostly represented by taurine, while methionine was high in soy formula. The sum of glutamic acid and glutamine in all the formulas was much lower than in human milk. CONCLUSIONS: Breastfed infants are supplied with FAA, mainly glutamic acid and glutamine, compared to formula-fed counterparts. The different FAA intake might be the origin of some functional differences at the enteral level between breast- and formula-fed infants.
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Houdijk, A. P., Rijnsburger, E. R., Jansen, J., Wesdorp, R. I., Weiss, J. K., McCamish, M. A., Teerlink, T., Meuwissen, S. G., Haarman, H. J. T. M., Thijs, L. G., et al. (1998) · The Lancet · doi:10.1016/s0140-6736(98)02007-8 · Cited by 620
Cited by
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Hansen, S. H. (2001) · Diabetes/Metabolism Research and Reviews · doi:10.1002/dmrr.229 · Cited by 281
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Negative effect of heat sterilization on the free amino acid concentrations in infant formula
Yeung, C.-Y., Lee, H.-C., Lin, S.-P., Yang, Y.-C., Huang, F.-Y., & Chuang, C.-K. (2006) · European Journal of Clinical Nutrition · doi:10.1038/sj.ejcn.1602279 · Cited by 34
Metadata
- Authors
- Agostoni, C., Carratù, B., Boniglia, C., Riva, E., & Sanzini, E.
- Venue
- Journal of the American College of Nutrition
- Publisher
- Informa UK Limited
- Published
- 2000-08
- Volume
- 19
- Issue
- 4
- Pages
- 434-438
- ISSN
- 0731-5724 (ISSN-L)
- 1541-1087
- OpenAlex
- W2048206767
- Cited by
- 158
- References
- 1
- FWCI
- 2.39
- Type
- journal article
- Language
- en
- Open access
- closed
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- Agostoni, C., Carratù, B., Boniglia, C., Riva, E., & Sanzini, E. (2000). Free Amino Acid Content in Standard Infant Formulas: Comparison with Human Milk. Journal of the American College of Nutrition. https://doi.org/10.1080/07315724.2000.10718943
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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