Antioxidant Activity of Brown Seaweed (Padina pavonica (L.) Extracts From the Algerian Mediterranean Coast


  • Ghania AISSAOUI
  • Wassila BENGHEDDA



Padina pavonica; antioxidant activity; total antioxidant capacity; reducing power; DPPH radical scavenging.


The crude methanolic extract, ethyl acetate and butanolic fractions, tannins, saponins and polysaccharides of the marine brown alga, Padina pavonica, growing on the Algerian Mediterranean Coast were measured for antioxidant activity, using total antioxidant capacity (TAC), reducing power and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assays. Total phenolic, flavonoid and proanthocyanidin contents were determined. The total phenolic, proanthocyanidin and flavonoid contents of methanolic extract were about of 2.007 ± 0.104 mg GAE/g DM, 4.611 ± 0.346 mg CE/g DM and 1.132 ± 0.091 mg CE/g DM, respectively. The total antioxidant capacity was higher (4.365 ± 0.452 mg AAE/g DM) in crude methanolic extract. For the other two tests, the tannins and ethyl acetate fraction presented high activities compared to the other extracts with EC50 about 1.430 ± 0.000 and 1.615 ± 0.009 mg/mL), respectively for the reducing power and 5.718 ± 1.111 and 5.848 ± 0.186 mg/mL for the DPPH radical scavenging. The seaweed extracts displayed moderate antioxidant activity compared to ascorbic acid.


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How to Cite

Khadidja KERZABI-KANOUN, Nabila BELYAGOUBI-BENHAMMOU, Larbi BELYAGOUBI, Meriem BENMAHDJOUB, Ghania AISSAOUI, Wassila BENGHEDDA, & Fawzia ATIK BEKKARA. (2021). Antioxidant Activity of Brown Seaweed (Padina pavonica (L.) Extracts From the Algerian Mediterranean Coast. Journal of Natural Product Research and Applications, 1(02), 54–62.



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