African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 688

Full Length Research Paper

Antioxidant activity of Rhodophyceae extracts from Atlantic and Mediterranean Coasts of Morocco

Bouhlal Rhimou1,2*, Riadi Hassane2 and Bourgougnon Nathalie1
  1Université européenne de Bretagne (UEB), Laboratoire de Biotechnologie et Chimie Marines (LBCM), Centre de  recherche Yves Coppens, Université de Bretagne-Sud. Vannes, BP 573 56017 France. 2Laboratoire de Diversité et Conservation de Systèmes Biologiques (LDICOSYB), Faculté des Sciences, Université Abdelmalek Essaâdi, Tétouan, B.P: 2121, 93003,Maroc.
Email: [email protected], [email protected]

  •  Accepted: 13 December 2012
  •  Published: 31 March 2013

Abstract

 

The evaluation of the antioxidant activity of ten aqueous and methanol extracts of the red seaweeds, Pterosiphonia complanata, Boergeseniella thuyoides, Sphaerococcus coronopifolius, Asparagopsis armata, Halopitys incurvus, Hypnea musciformis, Gelidium spinulosum, Plocamium cartilagineum, Gelidium pulchellum and Ceramium rubrum was realized through three different tests. Using the DPPH (2,2-diphényl-1-picrylhydrazyl)  test, four methanol extracts allowed the transformation of DPPH radical in reduced form with an EC50 between 96 and 862 µg.mL-1. With respect to the β-carotene test, 7 methanol extracts showed activity against peroxide radicals with an EC50 between 9 and 176 µg.mL-1. In the deoxyribose test, the inhibition percentage of hydroxyl radicals varies between 25 and 68% for five aqueous extracts; the most important being the extract of A. armata.

 

Key words: Red algae, antioxidant activity, DPPH, Deoxyribose, β-carotene–linoleic acid system.

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