"Microbiologia de alimentos." . . "2002." . . "Hospitales." . . "Kehr S., Juan" . . "Contreras Sch., Paula" . . "Nutricion enteral." . . . . "Alimentos formulados Microbiol." . . "Servicio de alimentacion en hospital Normas." . . "Aranda Ch., Waldo" . . "Castillo D., Loriana" . . "Morales V., Blanca" . . "SANTIAGO." . . . . . . "Calidad microbiológica de una fórmula enteral lista para usar" . "El objetivo de este estudio fue determinar y comparar en dos periodos de tiempo la calidad microbiologica de una formula enteral (FE) lista para usar: ADN lYquidoó. En central de FE, se recolectaron 40 muestras, de 50 ml cada una, al tiempo 0 y 24 horas, a temperatura ambiente, y se realizaron los siguientes estudios en el laboratorio de microbiologYa del CESMEC: Recuento de bacterias mesofilas (Me), coliformes totales (CT) y coliformes fecales (CF). Los est ̄ndares de calidad microbiologica (ECM) utilizados al tiempo 0 fueron <102 ufc/ml de Me y, ausencia de CT y CF; y a las 24 horas <103 ufc/ml de Me; <10 ufc/ml de CT y ausencia de CF. El an ̄lisis estadYstico se realizo en programa Stata. Los resultados fueron analizados mediante prueba Z para proporciones. Se considero significativo un nivel p <0,05. Los porcentajes de cumplimiento de ECM al tiempo 0 fueron: 100 por ciento para Me, CT y CF y a las 24 horas: 95 por ciento para Me y 100 por ciento para CT y CF (p = 0,3). Se concluye que las FE de ADN lYquidoó pueden estar colgadas hasta por 24 horas a temperatura ambiente. (AU)."@es . . "Journal article" . "Objective: To determinate and compare the microbiological quality of a ready to use enteral formula (EF): liquid ADNâ\"[cent] during different periods of time. Methods: The study was developed in the Hospital formula-preparing room. Twenty liters of EF were delivered in 40 plastic sterile bottles using aseptic technique, and were maintained at room temperature during 24 hours. Feed samples of 50 ml at time 0 and at 24 hours were obtained and frozen at -70o. C, until they were investigated (40 feed samples of EF were cultivated at preparation time 0, and 24 hours). Mesophile count (Me), total coliform (TC) and faecal coliform (FC) bacteria were investigated. The feed samples were analized at the Microbiologic Laboratory of CESMEC. The microbial quality standards (MQS) were at time 0: <10² UFC/ml of (Me), and no (TC) and (FC). At 24 hours: <10³ UFC/ml of (Me), <10 UFC/ml of (TC) and no (FC). The statistical data analysis was done using Stata program and Z test was used for proportions. The level of p <0,05 was considered statistically significant. Results: The average of fulfilment (MQS) for liquid ADNâ\"[cent] at time 0, and 24 hours was 100% and 95% (p = 0,3) for Me. TC got 100% fulfilment (MQS) at any time. FC were not detected at any time. Conclusions: Liquid ADNâ\"[cent]can be hung during 24 hours at room temperature." . . . . . . . . . . . . . "Calidad microbiologica de una formula enteral lista para usar"@es . . . . . . "Humano." . .