Comparative study of the antioxidant and metal chelating capacities of alkaloids and polyphenols extracted from various medicinal plants / Assia Hammiche

Public ISBD Titre : Comparative study of the antioxidant and metal chelating capacities of alkaloids and polyphenols extracted from various medicinal plants Type de document : texte imprimé Auteurs : Assia Hammiche, Auteur ; Ahlam Ournani, Auteur ; Djellali,Souad, Directeur de thèse Année de publication : 2022 Importance : 1 vol (86 f .) Format : 29cm Langues : Français (fre) Catégories : Thèses & Mémoires:Chimie Mots-clés : Chimie Punica L Rosmarinus officinalis and Cinnamonum zeylanicum Index. décimale : 540 Chimie et sciences connexes Résumé : The present study deals with the extraction and characterization of two main classes of secondary metabolites, polyphenols and alkaloids, from three medicinal plants: Punica L, Rosmarinus officinalis and Cinnamonum zeylanicum. The antioxidant activities (DPPH, FRAP) and the metal chelation powers toward several metals (Fe, Zn, Cu, Co and Cr) of these secondary metabolites plants were also evaluated. The results revealed that all the extracted secondary metabolites had significant antioxidant capacities, however; the alkaloids were more active than polyphenols. The metal chelation tests showed that the active compounds of all the extracts had a great capacity to link the metals. Côte titre : MACH/0269 Comparative study of the antioxidant and metal chelating capacities of alkaloids and polyphenols extracted from various medicinal plants [texte imprimé] / Assia Hammiche, Auteur ; Ahlam Ournani, Auteur ; Djellali,Souad, Directeur de thèse . - 2022 . - 1 vol (86 f .) ; 29cm. Langues : Français (fre) Catégories : Thèses & Mémoires:Chimie Mots-clés : Chimie Punica L Rosmarinus officinalis and Cinnamonum zeylanicum Index. décimale : 540 Chimie et sciences connexes Résumé : The present study deals with the extraction and characterization of two main classes of secondary metabolites, polyphenols and alkaloids, from three medicinal plants: Punica L, Rosmarinus officinalis and Cinnamonum zeylanicum. The antioxidant activities (DPPH, FRAP) and the metal chelation powers toward several metals (Fe, Zn, Cu, Co and Cr) of these secondary metabolites plants were also evaluated. The results revealed that all the extracted secondary metabolites had significant antioxidant capacities, however; the alkaloids were more active than polyphenols. The metal chelation tests showed that the active compounds of all the extracts had a great capacity to link the metals. Côte titre : MACH/0269

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
MACH/0269	MACH/0269	Mémoire	Bibliothéque des sciences	Anglais	Disponible Disponible

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