ABSTRACT
Guiera senegalensis is a well known medicinal plant which is used as a drug in Burkina Faso. The aim of this study was to investigate the chemical composition and antifungal activity from galls of Guiera senegalensis against different kinds of fungi in vitro. The chemical composition of the Guiera senegalensis volatile compounds obtained from the galls was analysed using gas chromatograph (GC)-flame ionization detectors (FID) and GC-MS. Thirteen (13) components were identified for hexane-acetone (50:50) column fraction of hydroacetone extract and twenty one (21) compounds for hexane-acetone (50:50) column fraction of aqueous decoction extract. This composition differed according to the kind of extract. The ethyl acetate fraction extract from hydroacetone extract (EAF/HAE) exhibited the highest of flavonol content (0.56 ± 0.01 mg QE/100 mg of fraction). The G senegalensis exhibited an interesting antifungal activity against all strains tested.
ABSTRACT
Cleome gynandra L. and Maerua angolensis DC (Forsk) are two species of Capparidaceae family and of which the traditional uses are directed much against the inflammatory diseases, cancer and cellular ageing. The aim of this study is to measure the anti-FRAP, anti-ABTS and anti-DPPH activities through the n-hexane (n-H), dichloromethanolic (DCM), acetonitrile (ACN), ethyl acetate (EA), methanolic (MeOH) and n-butanol (n-BuOH) fractions of each species. We thus quantified the total phenolic and total flavonoids in different fractions. The whole of the tests were evaluated with a sample concentration at 100 μg/mL. Thus, three methods i.e., FRAP, ABTS and DPPH were used to estimate the total antioxidant capacity of the plants fractions. The total phenolic and total flavonoid were also determined spectrophotometrically using Folin-Ciocalteu and AlCl3 reagents, respectively. Butanolic fractions were give the bests anti-FRAP (535.961 μmol AAEAC/g of fraction), anti- ABTS (155.868 μmol TEAC/g of fraction) and anti-DPPH (81.109 μmol QEAC/ g of fraction) activities. The best phenolic content was obtained with n-butanol fraction (133.023 mg GAE/g of fraction, for C. gynandra), followed of methanolic fraction of M. angolensis (128.043 mg GAE/g of fraction). C. gynandra was give the best flavonoids contents with DCMF (50.09 %), followed of EAF (19.464 %). The obtained results allow justifying the traditional uses of these plants in the above-mentioned diseases.
ABSTRACT
Argemone mexicana L. (Papaveraceae) fait l'objet de nombreuses indications therapeutiques en medecine traditionnelle dans la region des Cascades au Burkina Faso. Dans une etude preliminaire de 2006; il a ete mis en evidence une activite anti-hepatotoxique du decocte aqueux lyophilise des feuilles chez le rat Wistar prealablement icterise par une administration de tetrachlorure de carbone CCl4 (0;5 mL/kg; i.p.). Dans la presente etude; les auteurs projettent de comparer les effets anti-hepatotoxiques de trois (03) extraits de la plante notamment deux extraits aqueux lyophilises (decocte et macere) et un extrait du totum alcaloidique; tous administres a differents lots de rats rendus initialement icteriques par injection de l'hepatotoxique. La silymarine (100 mg/kg) a ete utilisee comme produit de reference anti-hepatotoxique. Les trois extraits (250 mg/kg; p.o.) ont temoigne une action anti-hepatotoxique significative (p0;05) objectivee par un pourcentage de reduction notable des marqueurs biochimiques enzymatiques notamment les transaminases (ASAT/GOT; ALAT/GPT); la phosphatase alcaline (PAL) et la bilirubine directe (DBil). Les pourcentages moyens de reduction d'hepato-toxicite induite ont ete de 79;4 (silymarine); 69;73 (decocte lyophilise); 70;63 (macere lyophilise) et 72 (totum alcaloidique). Ces resultats illustrent d'une part la preeminence de l'action pharmacologique anti-hepatotoxique de l'extrait de totum alcaloidique compare aux extraits aqueux lyophilises et d'autre part; l'effet des extraits pris isolement reste en deca de celui de la silymarine