Componentes menores y estabilidad a la oxidación mediante DSC de aceite de colza fraccionado y estructurado mediante catálisis con lipasa

Autores/as

  • M. A. Alim Department of Food Science, Division of Plant Products and Food Chemistry, Uppsala BioCenter, Swedish University of Agricultural Sciences - Department of Food Technology and Rural Industries, Bangladesh Agricultural University
  • P. Wessman AgResearch Limited - Department of Microbiology, Uppsala BioCenter, Swedish University of Agricultural Sciences
  • P. C. Dutta Department of Food Science, Division of Plant Products and Food Chemistry, Uppsala BioCenter, Swedish University of Agricultural Sciences

DOI:

https://doi.org/10.3989/gya.107912

Palabras clave:

Aceite de colza, Calorimetría diferencial de barrido, Estabilidad oxidativa, Esteroles, Reacción catalizada por lipasa, Tocoferoles

Resumen


Las grasas y aceites naturales pueden ser modificados mediante diversos métodos para preparar productos con propiedades físicas, químicas y nutricionales deseadas. El enriquecimiento y la retención de componentes lipídicos menores, la incorporación de ácido cáprico y estabilidad a la oxidación a baja temperatura de aceites de colza (RSO) fraccionado en acetona, se evaluaron en este estudio. La fracción líquida (L-RSO), la fracción sólida (S-RSO) y el RSO son transesterificados con ácido cáprico (CA) en diversas relaciones molares utilizando lipasa. Los rendimientos de las fracciones L-RSO y RSO-S fueron de 30 y 70 g por 100 g, respectivamente. La fracción líquida L-RSO contenía un mayor nivel de los ácidos linoleico y linolénico, y un menor nivel de ácido oleico en comparación con la fracción sólida S-RSO. La fracción sólida S-RSO tiene mayor contenido total de esteroles que RSO y que L-RSO. En contraste, la fracción L-RSO contenía mayor contenido de tocoferoles totales que RSO y que S-RSO. La incorporación de CA fue excelente con una relación molar de 1:3. El contenido de esteroles y tocoferoles disminuyó gradualmente con un incremento de la relación molar de la incorporación de CA. La estabilidad oxidativa muestra cómo la temperatura de inicio, determinada mediante DSC, de la fracción S-RSO fue mayor en comparación con la de la L-RSO y RSO.

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Citas

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Publicado

2013-06-30

Cómo citar

1.
Alim MA, Wessman P, Dutta PC. Componentes menores y estabilidad a la oxidación mediante DSC de aceite de colza fraccionado y estructurado mediante catálisis con lipasa. Grasas aceites [Internet]. 30 de junio de 2013 [citado 28 de julio de 2026];64(3):264-71. Disponible en: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1431

Número

Sección

Investigación