Antioxidant and antibacterial activities of Piliostigma reticulatum (DC.) Hochst extracts

  • Alexandre Zerbo
  • Jean Koudou
  • Noufou Ouédraogo
  • Rasmata Ouédraogo
  • Innocent P. Guissou

Abstract

The methanol and aqueous extracts of Piliostigma reticulatum barks were investigated for its antioxidant and antibacterial activities. The antioxidant test using 1,1-diphenyl-2-picrylhydrazyl (DPPH) method demonstrated important radical scavenging activity for the methanol extract with IC50 = 0,37 ± 0,04 μgmL-1. The 2 extracts were then examined for antibacterial activity by using the broth micro dilution method. The extracts possessed the antibacterial effect against the almost germs tested; the aqueous extract exhibited a better activity than methanol extract. These results indicate that methanol and aqueous extracts of P. reticulatum could be used as a source of antioxidant and antibacterial ingredients in the food industry.

Keywords: Piliostigma reticulatum, Ceasalpiniaceae, bark extracts, antioxidant, antibacterial

African Journal of Biotechnology Vol. 9(33), pp. 5407-5411, 16 August, 2010

Author Biographies

Alexandre Zerbo
Laboratoire de Pharmacologie-Toxicologie (UFR/SDS), Université de Ouagadougou, 03BP7021 Ouagadougou Burkina Faso
Jean Koudou
Laboratoire de chimie de substances naturelles, Faculté des Sciences, Université de Bangui, BP908 Bangui Centrafrique
Noufou Ouédraogo
Laboratoire de Pharmacologie-Toxicologie (UFR/SDS), Université de Ouagadougou, 03BP7021 Ouagadougou Burkina Faso
Rasmata Ouédraogo
Laboratoire de bactériologie-Virologie (UFR/SDS), Université de Ouagadougou, 03BP7021 Ouagadougou Burkina Faso
Innocent P. Guissou
Laboratoire de Pharmacologie-Toxicologie (UFR/SDS), Université de Ouagadougou, 03BP7021 Ouagadougou Burkina Faso
Published
2013-08-09
Section
Articles

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eISSN: 1684-5315