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Articles by T.H. Coulidiati
Total Records ( 2 ) for T.H. Coulidiati
  T.H. Coulidiati , H. Millogo-Kone , A. Lamien-Meda , C.E. Lamien , M. Lompo , M. Kiendrebeogo , S. Bakasso , M. Yougbare-Ziebrou , J. Millogo-Rasolodimby and O.G. Nacoulma
  In this study, the antioxidant and antibacterial activities of acetone extract, ethyl acetate, n-butanol and n-hexane fractions of acetone extract from leaves of Combretum nioroense Aubrév. ex Keay were investigated. The total phenolics and total flavonoids contents in the fractions and acetone extract were determined by spectrophotometric methods using Folin-Ciocalteu and AlCl3, respectively. Two methods were adopted to assess the antioxidant activities: the Ferric Reducing Antioxidant Power (FRAP) and the radical scavenging activity of 2, 2’-azinobis (3-ethylbenzothiozoline-6-sulfonate) radical cation (ABTS). The Minimum Inhibitory Concentrations (MICs) of the extract and fractions against pathogenic bacteria (4) and serotyped bacteria (4) from American Type Culture Collection (ATCC) were also determined using the agar-well diffusion method. The results showed that the butanol fraction, with the highest phenolic content, exhibited the best antioxidant and antibacterial activities as compared to the ethyl acetate fraction which contains more flavonoids.
  T.H. Coulidiati , H. Millogo-Kone , A. Lamien-Meda , M. Yougbare-Ziebrou , J. Millogo-Rasolodimby and O.G. Nacoulma
  The aim of this study was to determine the phytochemical content and to evaluate the antioxidant and antibacterial activities of the acetone extract from Combretum acutum Laws (leaves) and Combretum sericeum G. Don (aerial part). Acetone extracts were fractionated with n-hexane, ethyl acetate and butanol successively and their bioactivities were also evaluated. Phenolic, tannin and flavonoid contents have been determined using spectrophotometric methods. The antioxidant activity of these plant extracts and fractions has been determined by ABTS, FRAP and DPPH methods. The phytochemical screening revealed the presence of tannins, steroids/triterpenoids, saponins and cardenolides and different contents of flavonoids and anthraquinones in the acetone extracts of both plants. Results obtained from this study also showed that the butanol fractions, with the highest phenolic and tannin contents, exhibited the best antioxidant and antibacterial activities and will be maintained for further investigations. In addition to that, the Minimum Inhibitory Concentrations (MICs) of the extracts and fractions against pathogenic bacteria (5) and serotyped bacteria (5) from American Type Culture Collection (ATCC) were also determined using the agar-well diffusion method. Both plants possess good antioxidant and antibacterial activities.
 
 
 
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