HOME > EDICIONES > Año 2009, Volumen 59 - Número 1
Trabajos de Investigación
Acidos grasos de la leche materna madura de mujeres venezolanas de estratos socioeconómicos bajos: Influencia de la temperatura y tiempo de almacenamiento
Virgilio Bosch, Iván Golfetto, Hilda Alonso, Zuly Laurentin, Mercedes Materan y Ninoska García.
Instituto de Medicina Experimental. Sección de Lipidología. Facultad de Medicina. Universidad Central de Venezuela. Centro de Análisis Especiales “Dr Jacobo Domínguez Rochil” Universidad de Carabobo. Valencia, Venezuela
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SUMMARY
Fatty acids in mature breast milk from low socioeconomic levels of Venezuelan women: influence of temperature and time of storage
Breast milk is the main food in infants from birth until six months old. It is important to know if precarious life conditions could limit some nutrients in mother’s milk. The objective of this study is to evaluate the total fat and essential long chain fatty acids in mature breast milk from low socioeconomic levels in Venezuelan women. The values of total fat (3.56 ± 1.18 g/%) are similar that reported in the literature, however the sume of LC-PUFA n-3 was 0,3 ± 0.04% which is related whith low n-3 fatty acid maternal diet.The sume LC-PUFA n-3 contained in this study is below most of the reviewed publications. The average amount of 22:6 n-3 in breast milk offered to newborn one month old (750 ml/day) is below estimated requirements (70mg/day). The majority of these samples provide to the infants, the amount of DHA estimated as convenient to sustain normal growth. Also it was explored how the time (8h to 24 h) and temperatura (+40C, +150C y +250C) can affect its composition. This data will permit to select the best condiitions of sampling and storage of mother’s milk in future investigations in different regions of Venezuela. Most of the breast milk fatty acids tolerate some hours at room temperature (250C) but essential long chain fatty acids are very vulnerable. We propose that, in consequence, that samples should be transported in sterile conditions in dry ice to the laboratory in a few hours and should be kept at –700C until their analysis.
Key words: Breast milk, n-3 fatty acids, socioeconomic level, temperature, storage.
Recibido: 06/08/2008
Aceptado: 09/02/2009
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PRIVACIDAD | ACCESIBILIDAD
ALAN-VE ISSN 0004-0622 - Depósito Legal: pp 199602DF83
Sociedad Latinoamericana de Nutrición
Producción editorial en Venezuela: Capítulo Venezolano - RIF: J-30843129-0
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