Evaluación de compuestos fenólicos y actividad antioxidante en diferentes partes de plantas de variedades de sorgo

• Mohamed Zaitri Laboratoire des Sciences Fondamentales, Université Amar Telidji, BP 37, G 03000, Laghouat, Algeria. https://orcid.org/0009-0001-5631-4370
• Badreddine Belhadi Laboratoire des Sciences Fondamentales, Université Amar Telidji, BP 37, G 03000, Laghouat, Algeria. Laboratoire d’Etudes et Développement des Techniques d’Epuration et de Traitement des Eaux et Gestion Environnementale (LEDTEGE), Département des sciences physiques, Ecole Normale Supérieure Cheikh Mohamed El-Bachir El-Ibrahimi, ENS-KOUBA, B.P N° 92 16308 Vieux Kouba, Algiers, Algeria https://orcid.org/0009-0008-2637-8868
• Mohamed Benalia Laboratoire des Sciences Fondamentales, Université Amar Telidji, BP 37, G 03000, Laghouat, Algeria. https://orcid.org/0009-0006-9458-4810
• Redha Ouldkiar Laboratoire d’Etudes et Développement des Techniques d’Epuration et de Traitement des Eaux et Gestion Environnementale (LEDTEGE), Département des sciences physiques, Ecole Normale Supérieure Cheikh Mohamed El-Bachir El-Ibrahimi, ENS-KOUBA, B.P N° 92 16308 Vieux Kouba, Algiers, Algeria. Laboratory of Nutrition, Biodiversity and Environment, Faculty of Science, University of Yahia Fares, Medea, Algeria https://orcid.org/0000-0002-9629-8897
• Rachid Souilah Laboratoire des Sciences Fondamentales, Université Amar Telidji, BP 37, G 03000, Laghouat, Algeria. Laboratoire d’Etudes et Développement des Techniques d’Epuration et de Traitement des Eaux et Gestion Environnementale (LEDTEGE), Département des sciences physiques, Ecole Normale Supérieure Cheikh Mohamed El-Bachir El-Ibrahimi, ENS-KOUBA, B.P N° 92 16308 Vieux Kouba, Algiers, Algeria. Département de physique, Ecole Normale Supérieure Taleb Abderrahmane, ENSL, B.P 4033 Laghouat, Algeria. https://orcid.org/0009-0008-0271-7749
• Djaffar Djabali Laboratoire d’Etudes et Développement des Techniques d’Epuration et de Traitement des Eaux et Gestion Environnementale (LEDTEGE), Département des sciences physiques, Ecole Normale Supérieure Cheikh Mohamed El-Bachir El-Ibrahimi, ENS-KOUBA, B.P N° 92 16308 Vieux Kouba, Algiers, Algeria. https://orcid.org/0000-0002-4819-9077

Palabras clave: piensos, metabolitos secundarios, taninos, flavonoides, actividade antioxidante

Resumen

El campo de la producción de piensos para animales se considera una de las áreas más importantes en la producción ganadera. Dado que el sector ganadero en Argelia ha enfrentado muchos problemas, como la escasez de agua y el alto costo de los piensos tradicionales, es importante encontrar otras fuentes locales para superar esas dificultades. Este estudio tuvo como objetivo determinar el contenido de metabolitos secundarios, incluyendo compuestos fenólicos totales, taninos y flavonoides, y la actividades antioxidante en diferentes partes (hojas, tallos y residuos de panículas) de diez variedades de sorgo encontradas en el desierto argelino y cultivadas en la región de Bordj Bou Arreridj de Argelia. Los resultados mostraron diferencias significativas entre los contenidos de las muestras estudiadas, así como entre las tres partes diferentes de la planta, a saber, las hojas, los tallos y los residuos de las panojas. El contenido total de fenoles osciló entre 122,33 y 1.344,44 mg EAG.100 g^-1, con niveles de taninos de 4,84 a 927,78 mg EAG.100 g^-1, mientras que los valores de flavonoides variaron de 0,24 a 558,25 mg EQ.100 g^-1. La actividade antioxidante también mostró una variación significativa, con valores de DPPH entre 46,10 y 1.481,68 mg AAE.100 g^-1, FRAP de 31,76 a 1.145,92 mg AAE.100 g^-1, y valores de ABTS que oscilaron entre 28,89 y 459,92 mg AAE.100 g^-1. Estos resultados confirmaron que las plantas de sorgo no solo representan una fuente de compuestos metabólicos primarios como fibras, almidón, proteínas y materiales energéticos utilizados como alimento para animales, sino que también podrían ser utilizadas como una rica fuente de compuestos fenólicos con un valor efectivo en la salud humana.

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