{"id":29018,"date":"2023-07-04T11:17:20","date_gmt":"2023-07-04T10:17:20","guid":{"rendered":"https:\/\/babywellnessfoundation.org\/news-approfondimenti\/storage-of-breast-milk\/"},"modified":"2026-06-26T09:44:56","modified_gmt":"2026-06-26T08:44:56","slug":"conservation-du-lait-maternel","status":"publish","type":"news-approfondimenti","link":"https:\/\/babywellnessfoundation.org\/fr\/news-approfondimenti\/conservation-du-lait-maternel\/","title":{"rendered":"Conservation du lait maternel"},"content":{"rendered":"<p>Le lait maternel repr\u00e9sente la <strong>r\u00e9f\u00e9rence absolue sur le plan nutritionnel et immunologique<\/strong> pour le nouveau-n\u00e9 \u00e0 terme comme pour le pr\u00e9matur\u00e9. Son administration diff\u00e9r\u00e9e, par extraction et conservation, constitue une pratique essentielle dans de nombreux contextes cliniques et \u00e0 domicile, afin de garantir la continuit\u00e9 de l\u2019apport nutritionnel et fonctionnel du lait en l\u2019absence de t\u00e9t\u00e9e directe.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-20648\" src=\"https:\/\/babywellnessfoundation.org\/wp-content\/uploads\/2023\/07\/Breastfeeding-300x169.jpg\" alt=\"\" width=\"1381\" height=\"778\" srcset=\"https:\/\/babywellnessfoundation.org\/wp-content\/uploads\/2023\/07\/Breastfeeding-300x169.jpg 300w, https:\/\/babywellnessfoundation.org\/wp-content\/uploads\/2023\/07\/Breastfeeding-1024x576.jpg 1024w, https:\/\/babywellnessfoundation.org\/wp-content\/uploads\/2023\/07\/Breastfeeding-768x432.jpg 768w, https:\/\/babywellnessfoundation.org\/wp-content\/uploads\/2023\/07\/Breastfeeding-1536x864.jpg 1536w, https:\/\/babywellnessfoundation.org\/wp-content\/uploads\/2023\/07\/Breastfeeding-100x56.jpg 100w, https:\/\/babywellnessfoundation.org\/wp-content\/uploads\/2023\/07\/Breastfeeding-120x68.jpg 120w, https:\/\/babywellnessfoundation.org\/wp-content\/uploads\/2023\/07\/Breastfeeding.jpg 1920w\" sizes=\"(max-width: 1381px) 100vw, 1381px\" \/><\/p>\n<h5 style=\"background-color: #e8eff4; color: white; padding: 5px;\"><strong><span style=\"color: #006271;\">Fondements cliniques et physiologiques de la conservation du lait maternel<\/span><\/strong><\/h5>\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"778\" data-end=\"855\">La conservation du lait maternel est n\u00e9cessaire dans diff\u00e9rentes situations :<\/p>\n<ul data-start=\"857\" data-end=\"1606\">\n<li data-section-id=\"g8xti4\" data-start=\"857\" data-end=\"978\"><strong>Absence temporaire de la m\u00e8re<\/strong> (par exemple : reprise du travail, s\u00e9paration, d\u00e9placements ou contraintes logistiques) ;<\/li>\n<li data-section-id=\"1akv0nr\" data-start=\"979\" data-end=\"1109\"><strong>Allaitement diff\u00e9r\u00e9<\/strong> chez les nouveau-n\u00e9s pr\u00e9matur\u00e9s, hypotoniques ou pr\u00e9sentant des pathologies emp\u00eachant une succion efficace ;<\/li>\n<li data-section-id=\"iigg3s\" data-start=\"1110\" data-end=\"1370\"><strong>Soutien de la lactogen\u00e8se<\/strong> lorsque la mise au sein directe n\u2019est pas possible, tout en maintenant la stimulation de la production lact\u00e9e (par exemple chez les m\u00e8res pr\u00e9sentant un engorgement mammaire, une mastite ou lors d\u2019une hospitalisation du nouveau-n\u00e9) ;<\/li>\n<li data-section-id=\"19lali1\" data-start=\"1371\" data-end=\"1499\">P<strong>artage des soins du nourrisson<\/strong>, en favorisant la participation du partenaire ou d\u2019autres personnes prenant soin de l\u2019enfant ;<\/li>\n<li data-section-id=\"58p50k\" data-start=\"1500\" data-end=\"1606\"><strong>Don au Lactarium<\/strong> (Banque de Lait Maternel Donn\u00e9) destin\u00e9 aux nouveau-n\u00e9s pr\u00e9matur\u00e9s ou en \u00e9tat critique.<\/li>\n<\/ul>\n<p data-start=\"1608\" data-end=\"1808\">Le lait maternel correctement conserv\u00e9 maintient une valeur biologique \u00e9lev\u00e9e et doit \u00eatre privil\u00e9gi\u00e9 par rapport aux pr\u00e9parations pour nourrissons, m\u00eame lorsqu\u2019il est administr\u00e9 de mani\u00e8re indirecte.<\/p>\n<h5 style=\"background-color: #e8eff4; color: white; padding: 5px;\"><strong><span style=\"color: #006271;\">Composants bioactifs du lait maternel : sensibilit\u00e9 \u00e0 la conservation<\/span><\/strong><\/h5>\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"1889\" data-end=\"2197\">Le lait humain contient de <strong>nombreux composants bioactifs<\/strong> particuli\u00e8rement sensibles aux variations de temp\u00e9rature, \u00e0 la lumi\u00e8re, au temps et aux modalit\u00e9s de conservation. Une conservation inad\u00e9quate peut entra\u00eener une diminution de leur <strong>activit\u00e9 biologique ou une d\u00e9gradation irr\u00e9versible de ces substances<\/strong>. Les principaux composants thermolabiles et photosensibles comprennent :<\/p>\n<div style=\"overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse; border: 1px solid #cccccc; font-size: 11px; font-family: 'Open Sans', sans-serif; background-color: #e8eff4;\">\n<thead>\n<tr style=\"background-color: #006d77; color: #fff;\">\n<th style=\"padding: 10px; border: 1px solid #ccc;\">Composant<\/th>\n<th style=\"padding: 10px; border: 1px solid #ccc;\">Fonction<\/th>\n<th style=\"padding: 10px; border: 1px solid #ccc;\">Alt\u00e9rations dues \u00e0 une conservation inad\u00e9quate<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background-color: #f0f4f8;\">\n<td style=\"padding: 10px; border: 1px solid #ccc;\"><strong>Immunoglobulines<br \/>\n(IgA, IgG, IgM)<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Protection des muqueuses, neutralisation des agents pathog\u00e8nes<\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Perte d\u2019activit\u00e9 \u00e0 des temp\u00e9ratures &gt; 4 \u00b0C ou apr\u00e8s une recong\u00e9lation ;<br \/>\nalt\u00e9ration des IgA<\/td>\n<\/tr>\n<tr style=\"background-color: #e6eef4;\">\n<td style=\"padding: 10px; border: 1px solid #ccc;\"><strong>Lactoferrine<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Ch\u00e9lation du fer, activit\u00e9 antimicrobienne et antivirale<\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Sensible \u00e0 la chaleur et \u00e0 l\u2019oxydation ;<br \/>\nune pasteurisation non contr\u00f4l\u00e9e r\u00e9duit son activit\u00e9<\/td>\n<\/tr>\n<tr style=\"background-color: #f0f4f8;\">\n<td style=\"padding: 10px; border: 1px solid #ccc;\"><strong>Lysozyme<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Activit\u00e9 enzymatique antibact\u00e9rienne (Gram positifs)<\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">D\u00e9naturation lors des cycles de cong\u00e9lation\/d\u00e9cong\u00e9lation ;<br style=\"background-color: #e6eef4;\" \/><span style=\"background-color: #e6eef4;\">activit\u00e9 r\u00e9duite apr\u00e8s quelques jours de r\u00e9frig\u00e9ratio<\/span><\/td>\n<\/tr>\n<tr style=\"background-color: #e6eef4;\">\n<td style=\"padding: 10px; border: 1px solid #ccc;\"><strong>Cellules vivantes<br \/>\n(leucocytes maternels<br \/>\n<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">R\u00e9ponse immunitaire, r\u00e9gulation de l\u2019immunit\u00e9 n\u00e9onatale<\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Perte totale de viabilit\u00e9 apr\u00e8s cong\u00e9lation ;<br \/>\nefficacit\u00e9 maximale uniquement dans le lait frais<\/td>\n<\/tr>\n<tr style=\"background-color: #f0f4f8;\">\n<td style=\"padding: 10px; border: 1px solid #ccc;\"><strong>Enzymes digestives <\/strong><br \/>\n<strong>(lipase, amylase)<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Digestion des lipides et des glucides, protection gastro-intestinale<\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Inactivation progressive d\u00e8s 24\u201348 heures \u00e0 4 \u00b0C ;<br \/>\nla cong\u00e9lation r\u00e9duit leur activit\u00e9<\/td>\n<\/tr>\n<tr style=\"background-color: #e6eef4;\">\n<td style=\"padding: 10px; border: 1px solid #ccc;\"><strong>Oligosaccharides<br \/>\ndu lait humain (HMOs)<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Modulation du microbiote, effet pr\u00e9biotique et<br \/>\ninhibition de l\u2019adh\u00e9sion des agents pathog\u00e8nes<\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Stables \u00e0 basse temp\u00e9rature, mais la lumi\u00e8re et<br \/>\nl\u2019air r\u00e9duisent leur efficacit\u00e9 biologique<\/td>\n<\/tr>\n<tr style=\"background-color: #f0f4f8;\">\n<td style=\"padding: 10px; border: 1px solid #ccc;\"><strong>Vitamines<br \/>\n(A, E, C, groupe B)<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">Soutien m\u00e9tabolique, activit\u00e9 antioxydante, d\u00e9veloppement neurologique<\/td>\n<td style=\"padding: 10px; border: 1px solid #ccc;\">La vitamine C est particuli\u00e8rement sensible \u00e0 l\u2019oxydation ;<br \/>\nd\u00e9gradation rapide en pr\u00e9sence d\u2019air, de lumi\u00e8re et \u00e0 temp\u00e9rature ambiante<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>&nbsp;<\/p>\n<h5 style=\"background-color: #e8eff4; color: white; padding: 5px;\"><strong><span style=\"color: #006271;\">Recommandations pratiques pour une extraction et une conservation correctes<\/span><\/strong><\/h5>\n<p>Afin de pr\u00e9server les propri\u00e9t\u00e9s nutritionnelles et immunologiques du lait maternel, il est essentiel de respecter certaines bonnes pratiques d\u2019hygi\u00e8ne et de manipulation.<\/p>\n<h5><span style=\"color: #006271;\"><strong>Pendant l\u2019extraction :<\/strong><\/span><\/h5>\n<ul>\n<li data-section-id=\"1o4zgu\" data-start=\"312\" data-end=\"356\">Choisir un environnement calme et propre ;<\/li>\n<li data-section-id=\"14ncyia\" data-start=\"357\" data-end=\"423\">Se laver les mains et les avant-bras avec de l\u2019eau et du savon ;<\/li>\n<li data-section-id=\"ghcii\" data-start=\"424\" data-end=\"498\">Nettoyer le sein uniquement avec de l\u2019eau, sans utiliser de d\u00e9tergents ;<\/li>\n<li data-section-id=\"1b2o5ll\" data-start=\"499\" data-end=\"606\">Utiliser des r\u00e9cipients propres en verre ou en plastique rigide, ou des sachets st\u00e9riles \u00e0 usage unique ;<\/li>\n<li data-section-id=\"eopc9l\" data-start=\"607\" data-end=\"674\">En cas d\u2019expression manuelle, placer le r\u00e9cipient sous l\u2019ar\u00e9ole ;<\/li>\n<li data-section-id=\"19uyp41\" data-start=\"675\" data-end=\"859\">Chaque s\u00e9ance d\u2019expression doit \u00eatre conserv\u00e9e dans un r\u00e9cipient distinct. \u00c0 la fin de la journ\u00e9e, il est possible de regrouper les quantit\u00e9s d\u00e9j\u00e0 r\u00e9frig\u00e9r\u00e9es dans un seul r\u00e9cipient.<\/li>\n<\/ul>\n<h5 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"8dhjog\" data-start=\"5826\" data-end=\"5848\"><strong><span style=\"color: #006271;\">Pour la r\u00e9frig\u00e9ration :<\/span><\/strong><\/h5>\n<ul data-start=\"5850\" data-end=\"6115\">\n<li data-section-id=\"1rm9137\" data-start=\"890\" data-end=\"1043\">Conserver le lait dans la partie arri\u00e8re du r\u00e9frig\u00e9rateur, en position verticale, de pr\u00e9f\u00e9rence \u00e0 l\u2019int\u00e9rieur d\u2019un sac destin\u00e9 au contact alimentaire ;<\/li>\n<li data-section-id=\"2807jl\" data-start=\"1044\" data-end=\"1098\">\u00c9tiqueter chaque r\u00e9cipient avec la date de recueil ;<\/li>\n<li data-section-id=\"4gjjhu\" data-start=\"1099\" data-end=\"1215\">Ne pas r\u00e9chauffer une nouvelle fois un lait d\u00e9j\u00e0 chauff\u00e9 et ne pas le remettre au r\u00e9frig\u00e9rateur apr\u00e8s utilisation.<\/li>\n<\/ul>\n<h5 data-section-id=\"1ga1yrt\" data-start=\"6117\" data-end=\"6134\"><span style=\"color: #006271;\"><strong>Pour la cong\u00e9lation :<\/strong><\/span><\/h5>\n<ul data-start=\"6136\" data-end=\"6490\">\n<li data-section-id=\"11azpjq\" data-start=\"1244\" data-end=\"1362\">Laisser environ 2 cm d\u2019espace libre dans le r\u00e9cipient afin de permettre l\u2019expansion du lait lors de la cong\u00e9lation ;<\/li>\n<li data-section-id=\"whdevg\" data-start=\"1363\" data-end=\"1491\">D\u00e9congeler lentement au r\u00e9frig\u00e9rateur ou sous un filet d\u2019eau courante \u00e0 une temp\u00e9rature inf\u00e9rieure \u00e0 37 \u00b0C, ou au bain-marie ;<\/li>\n<li data-section-id=\"19l58gp\" data-start=\"1492\" data-end=\"1543\">Le lait d\u00e9congel\u00e9 ne doit jamais \u00eatre recongel\u00e9 ;<\/li>\n<li data-section-id=\"v9adls\" data-start=\"1544\" data-end=\"1668\">Une l\u00e9g\u00e8re modification de l\u2019odeur ou de la couleur apr\u00e8s d\u00e9cong\u00e9lation est normale et n\u2019indique pas une perte de qualit\u00e9.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Le lait maternel repr\u00e9sente la r\u00e9f\u00e9rence absolue sur le plan nutritionnel et immunologique pour le nouveau-n\u00e9 \u00e0 terme comme pour le pr\u00e9matur\u00e9. Son administration diff\u00e9r\u00e9e, par extraction et conservation, constitue une pratique essentielle dans de nombreux contextes cliniques et \u00e0 domicile, afin de garantir la continuit\u00e9 de l\u2019apport nutritionnel et fonctionnel du lait en l\u2019absence [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":29020,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"focus-approfondimento":[965],"focus-appartenenza":[],"coauthors":[110],"class_list":["post-29018","news-approfondimenti","type-news-approfondimenti","status-publish","format-standard","has-post-thumbnail","hentry","focus-approfondimento-le-lait-maternel-et-ses-bienfaits-nutritionnels"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Conservation du lait maternel - Baby Wellness Foundation<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/babywellnessfoundation.org\/fr\/news-approfondimenti\/conservation-du-lait-maternel\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Conservation du lait maternel - Baby Wellness Foundation\" \/>\n<meta property=\"og:description\" content=\"Le lait maternel repr\u00e9sente la r\u00e9f\u00e9rence absolue sur le plan nutritionnel et immunologique pour le nouveau-n\u00e9 \u00e0 terme comme pour le pr\u00e9matur\u00e9. 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