Suivi des témpératures dans des préparations lactées en néonatalogie : potentiels de croissance de Enterobacter sakazakii

Abstract

The purpose of this study was to evaluate the temperature conditions in neonate care units for infant milk formula (IMF) preparation, storage and neonate feeding by oral and enteral nutrition. From IMF preparation until first and last neonate feeding period per 24 h, 179 time-temperature profiles of IMF samples were collected in 25 neonatal care units in 15 hospitals. Results showed Afssa specifications on temperatures were not completely observed: blast chiller missing and important delay for cooling down IMF to 4 ̊C, ineffective or incorrectly regulated cold cabinet cold cabinet for keeping IMF at 4 ̊C, microwave or water batch used for rethermalizing IMF. In order to show the health impact of this data, potential Enterobacter sakazakii growth was calculated. For bottles, potential E. sakazakii growth increments were under 2 log 10 due to short (≤24 h) cold storage duration. Nevertheless good hygiene practices have to be respected for reducing a particularly high danger for neonates. Afssa specifications are the minimum to observe. For continuous feeding syringe, potential growth values were mainly due to the feeding period because of the IMF was kept in the infant's room at room temperature (≈ 25 ̊C) during a long time. In these conditions microbial growth is difficult to control. Nevertheless the use of a cold cover for keeping the IMF at low temperature in a continuous feeding syringe could ensure good food safety.