PMID: 16614484Apr 15, 2006Paper

Available lysine content in human milk: stability during manipulation prior to ingestion

BioFactors
D SilvestreF J Romero

Abstract

Available lysine content is an indicator of protein quality and nutritional value of milk. Many studies have examined the effects of extraction, treatment and storage of human milk upon its components, though no references are found regarding the possible changes in milk quality as defined by its content in essential amino acids such as lysine. The present study investigates the available lysine content in human milk and the variations in lysine resulting from milk manipulation as follows: (a) Cold storage (refrigeration at 4 degrees C for 48 hours, and frozen for 15 days at -20 degrees C); (b) Thermal treatment under conditions of low (Holder)(63 degrees C/30 minutes) and high pasteurization (75 degrees C/15 seconds). The results obtained show a decrease in milk lysine concentration after storage in both refrigerated and frozen samples. Pasteurization causes a highly significant loss of available lysine. The lysine losses were greater on applying low pasteurization versus the more gentle conditions of high pasteurization. While manipulation through cold storage or thermal treatment does not affect the protein content of human milk, its protein quality is modified. When human milk must be subjected to hygienization, it is prefe...Continue Reading

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Citations

May 26, 2011·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Julia B EwaschukCatherine J Field
Sep 17, 2011·Journal of Pediatric Gastroenterology and Nutrition·Aránzazu Gómez de SeguraJuan M Rodríguez
Jun 12, 2013·Journal of Pediatric Gastroenterology and Nutrition·Nadia Raquel García-LaraCarmen Rosa Pallás-Alonso
Sep 21, 2010·The Journal of Pediatrics·Christina J ValentineLynette K Rogers
May 15, 2008·Acta Paediatrica·Dolores SilvestreFrancisco Javier Romero
Jun 3, 2014·BMC Pediatrics·Sharon UngerDeborah L O'Connor
Sep 12, 2008·Journal of Human Lactation : Official Journal of International Lactation Consultant Association·D SilvestreM C López
Oct 3, 2017·Journal of Pediatric Gastroenterology and Nutrition·Annet MaathuisSusann Bellmann
Dec 14, 2017·Breastfeeding Medicine : the Official Journal of the Academy of Breastfeeding Medicine·April D FoglemanJonathan C Allen
May 28, 2019·Nutrients·Teresa CapriatiAntonella Diamanti
Mar 11, 2011·Public Health Reports·Sheela R GeraghtyKathleen M Rasmussen
Mar 16, 2019·Frontiers in Pediatrics·Guido E MoroJean-Charles Picaud
Oct 19, 2016·Journal of Pediatric Gastroenterology and Nutrition·Chiara PeilaLaura Cavallarin

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