Cambios en la composición proximal y en las características de los aceites durante el desarrollo de semillas de linaza

Autores/as

  • W. Herchi Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis
  • S. Bahashwan College of Pharmacy, Taibah University
  • H. Trabelsi Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis
  • S. Boukhchina Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis
  • H. Kallel Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis
  • S. Rochut UPMC University Paris
  • C. Pepe UPMC University Paris

DOI:

https://doi.org/10.3989/gya.097713

Palabras clave:

APPI-MS, Composición proximal, Fracciones de proteínas, HPLC, Madurez, Semillas de linaza

Resumen


Fotoionización a presión atmosférica-Espectrometría de masas (APPI-MS) y cromatografía líquida de alta resolución (HPLC) son dos métodos de análisis que se utilizaron para caracterizar triglicéridos (TAGs) durante el desarrollo de semillas de linaza. El método HPLC mostró la presencia de 15 especies de TAG, en contraste, los cromatogramas de APPI-MS mostraron 17 picos de TAG siendo el método APPI-MS más rápido que el de HPLC (11 min). El índice de yodo de los aceites mostró un aumento gradual, mientras que la estabilidad disminuyó continuamente. El estudio de la composición proximal de la linaza durante su desarrollo, mostró que esta semilla es una fuente potencialmente buena de energía y de proteína para la dieta. Al final de la maduración, la linaza contenía 37 % de aceite y 24 % de proteína sobre peso seco; albúmina fue la principal proteína de almacenamiento (53% sobre el total de las proteínas de almacenamiento) seguido de la globulina (33 %) y glutelina (11 %). Las prolaminas presentaron el porcentaje más bajo con 3 %. La actividad α-amilasa fue mayor en las semillas maduras que en las más jóvenes.

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Citas

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Publicado

2014-06-30

Cómo citar

1.
Herchi W, Bahashwan S, Trabelsi H, Boukhchina S, Kallel H, Rochut S, Pepe C. Cambios en la composición proximal y en las características de los aceites durante el desarrollo de semillas de linaza. Grasas aceites [Internet]. 30 de junio de 2014 [citado 23 de febrero de 2025];65(2):e022. Disponible en: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1486

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Sección

Investigación