Titre :	Phenolic content and antioxidant activity of Azolla extract
Type de document :	document électronique
Auteurs :	Amira Tebib, Auteur ; Dounia Taftaf, Auteur ; Saliha Djidel, Directeur de thèse
Editeur :	Sétif : Faculté des Sciences de la Nature et de la Vie
Année de publication :	2024
Importance :	29 Feuilles
ISBN/ISSN/EAN :	MS/2024
Langues :	Anglais
Catégories :	Thèse et mémoire:Master:Biotechnologie et pathologie moléculaire
Mots-clés :	Azolla  Antioxidant activity  Polyphenols  Flavonoids.
Résumé :	The objective of this study was to determine the phenolic content and evaluate the antioxidant activity of ethanolic Azolla extract. The quantitative estimation of polyphenols and flavonoids showed the presence of 25 ±0.28μg EAG/mg and 3.40 ±0.16 μg EC/mg of extract respectively. The antioxidant activity of this plant was assessed by various methods: the DPPH test shows that Azolla has a potency IC₅₀ = 0.0094±0.003 mg/ml also the H2O2 scavenging test gives IC₅₀ = 0. 43±0.082 mg/ml and the chelating activity on Fe²⁺ shows IC₅₀ = 0.064±0.0062 mg/ml and the reducing power of ferric iron whose IC50 is 28.22±0.38 %. In conclusion, it has been shown that the ethanolic extract of Azolla is rich in phenolic compounds.

Phenolic content and antioxidant activity of Azolla extract [document électronique] / Amira Tebib, Auteur ; Dounia Taftaf, Auteur ; Saliha Djidel, Directeur de thèse . - Sétif : Faculté des Sciences de la Nature et de la Vie, 2024 . - 29 Feuilles.
ISSN : MS/2024
Langues : Anglais

Catégories :	Thèse et mémoire:Master:Biotechnologie et pathologie moléculaire
Mots-clés :	Azolla  Antioxidant activity  Polyphenols  Flavonoids.
Résumé :	The objective of this study was to determine the phenolic content and evaluate the antioxidant activity of ethanolic Azolla extract. The quantitative estimation of polyphenols and flavonoids showed the presence of 25 ±0.28μg EAG/mg and 3.40 ±0.16 μg EC/mg of extract respectively. The antioxidant activity of this plant was assessed by various methods: the DPPH test shows that Azolla has a potency IC₅₀ = 0.0094±0.003 mg/ml also the H2O2 scavenging test gives IC₅₀ = 0. 43±0.082 mg/ml and the chelating activity on Fe²⁺ shows IC₅₀ = 0.064±0.0062 mg/ml and the reducing power of ferric iron whose IC50 is 28.22±0.38 %. In conclusion, it has been shown that the ethanolic extract of Azolla is rich in phenolic compounds.