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Efectos del consumo de aceites termo-oxidados sobre la peroxidación lipídica en animales de laboratorio.

Authors: Abilés, J.; Ramón, A. N.; Moratalla, G.; Pérez-Abud, R.; Morón Jiménez, J.; Ayala, A.;

Efectos del consumo de aceites termo-oxidados sobre la peroxidación lipídica en animales de laboratorio.

Abstract

Introducción: La calidad de las grasas y aceites utilizados para frituras es tan importante como la calidad del producto final, ya que durante el proceso de fritura se desarrollan productos de oxidación que pasan a formar parte de la dieta pudiendo ser nocivos para la salud de los consumidores. Objetivo: determinar los efectos del consumo de grasas y aceites termo-oxidados sobre la oxidación de lipoproteí-nas plasmáticas en ratas de laboratorio. Métodos: determinación, mediante técnicas espectrofotométricas, de sustancias que reaccionan con el ácido tiobarbitúrico y colesterol total (método enzimático) en el suero de 40 ratas de la cepa wistar que consumieron aceites y grasas crudas y termo-oxidadas con diferentes niveles de malonilaldehido (MDA) durante 30 días. Resultados: El grupo de animales que recibió dieta con aceites y grasa termo-oxidados experimentaron aumentos significativos en la concentración plasmática de MDA a lo largo del período de estudio, siendo la peroxidación lipídica mayor cuanto mayor fue el contenido de MDA (p 0,05). En cambio, la colesterolemia aumentó hacia el final del período experimental tanto en aquellos animales que consumieron materias grasas crudas como las que las tomaron termo-oxidadas (p < 0,05). Conclusiones: el consumo de aceites y grasa sometidos a sucesivos calentamientos térmicos influye sobre la peroxidación lipídica plasmática y es mayor cuanto mayor sea el número de calentamientos aplicados, por lo que sería recomendable no abusar del recalentamiento de los aceites utilizados en la frituras

Keywords

Aceites, Peróxidos lipídicos, Grasas, Medical Subject Headings::Phenomena and Processes::Chemical Phenomena::Biochemical Phenomena::Biochemical Processes::Lipid Peroxidation, Fats, Tratamiento térmico, Medical Subject Headings::Organisms::Eukaryota::Animals, Medical Subject Headings::Chemicals and Drugs::Lipids::Fats::Dietary Fats::Dietary Fats, Unsaturated, Thermal treatment, Medical Subject Headings::Phenomena and Processes::Chemical Phenomena::Chemical Processes::Physicochemical Processes::Oxidation-Reduction, Medical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Rodentia::Muridae::Murinae::Rats, Lipidic peroxides, Medical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Rodentia::Muridae::Murinae::Rats::Rats, Wistar, Oils

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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