Aporte de ácidos grasos trans, ácido linoleico conjugado y ácido docosahexaenoico, en la grasa de leche materna de nodrizas chilenas / Trans fatty acids, conjugated linoleic acid and docosahexaenoic acid, in the fat of breast milk of lactating Chilean mothers
Rev. chil. nutr
;
37(1): 9-17, mar. 2010. tab
Article
in Spanish
| LILACS
| ID: lil-577366
ABSTRACT
Introduction:
Breast milk has several compounds obtained from food sources, such as conjugated linoleic acid (CLA).Objective:
To compare the amount of trans fatty acids (TFA), CLA and docosahexaenoic acid (DHA) in the fat of breast milk with reported food consumption. Subjects andmethod:
Descriptive study of 10 lactating Chilean women. Breast milk fatty acids were analyzed by gas liquid chrornatography and results compared to data obtained from a food frequency questionnaire.Results:
Forty-two fatty acids were quantified, TFA (3.6 percent), CLA (0.8 percent), and DHA (0.2 percent). Of the 42 fatty acids, 4 CLA isomers and 3 TFA isomers were identified. The consumption offish, milk and meat was low. A positive correlation (p<0.05) between diet and the amount of two fatty acids, linolenic acid (LNA) and DHA, was found in breast milk fat.Conclusions:
The amount of CLA and DHA found in food consumed and breast milk had a significant correlation; however, the amount of TFA is similar to that reported in other international studies.RESUMEN
Introducción:
La leche materna posee una serie de componentes, entre ellos el ácido docosahexaenoico (DHA) y el acido linoleico conjugado (CLA), siendo la dieta el principal aportador.Objetivo:
Comparar el contenido de CLA, trans industriales (AGT) y DHA de leche materna con la ingesta alimentaria. Sujetos ymétodo:
Estudio descriptivo de 10 nodrizas, se obtuvo una muestra de leche materna, la materia grasa se analizó por cromatografía de gas-líquido, el resultado se comparó con una encuesta alimentaria.Resultados:
Se cuantificaron 42 ácidos grasos, trans industriales (3,6 por ciento), el CLA (0,8 por ciento) y DHA (0,2 por ciento) del total de ácidos grasos de la grasa. Se cuantificaron 4 isómeros de CLA y 3 ácidos grasos trans industriales. El consumo de alimentos marinos, lácteos y carnes fue bajo. Al correlacionar la dieta y presencia de ácidos grasos, el ácido linoleico (AL) y el DHA mostraron una correlación positiva (p<0,05).Conclusión:
Tanto la ingesta como la presencia de DHA y CLA en leche materna es baja, en cambio la presencia de trans industrial es moderada con respecto a otros estudios.
Full text:
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Index:
LILACS (Americas)
Main subject:
Docosahexaenoic Acids
/
Linoleic Acids, Conjugated
/
Trans Fatty Acids
/
Eating
/
Lipids
/
Milk, Human
Limits:
Female
/
Humans
Country/Region as subject:
South America
/
Chile
Language:
Spanish
Journal:
Rev. chil. nutr
Journal subject:
Nutritional Sciences
Year:
2010
Type:
Article
Affiliation country:
Chile
Institution/Affiliation country:
Universidad de Chile/CL
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