Konan et al. J. Appl. Biosci. 2015 Dynamisme de la structure diamétrique du peuplement ligneux des différents biotopes de la forêt classée de Yapo-Abbé, Sud de la Côte d'Ivoire.Dynamism of the diametric structure of ligneous of the different habitats of the reserved forest of Yapo-Abbe, Southern Côte d'Ivoire ABSTRACT Objective : The study was conducted in the reserved forest of Yapo Abbé, to assess the disturbance of woody flora, following human activities, through the spatial distribution of tree species and the potential for natural regeneration in different habitats constituent of this forest (natural forests, managed forest, reforested areas, fallow) Journal of Applied Biosciences 94:8869 -8879 ISSN 1997-5902 Konan et al. J. Appl. Biosci. 2015 Dynamisme de la structure diamétrique du peuplement ligneux des différents biotopes de la forêt classée de Yapo-Abbé, Sud de la Côte d'Ivoire. 8870Methodology and results : The methodology focused on surface inventory. Thus, 50 records of 100 m x 50 m were arranged and inventoried through the various biotopes. The results showed that illegal logging and agricultural practice in the forest led to a significant change in the number of woody species of a biotope to another: 195 species in the natural forest, 155 in the managed forest, 117 for the reforested area and 86 in fallow. The high average diameter in the reserved forests is 24.7 ± 0.2 cm. It is only found in the natural forest habitat. The disruption of this forest has led to a strong natural regeneration, 74.6% more than in all biotopes. It has, however, not observed with commercial species. The most abundant species of the adult vegetation of natural forest habitats, forest fallows fitted and are replaced by other species in juvenile vegetation. Conclusion and application of results : The study showed that the uncontrolled exploitation of the woody flora in the reserved forest of Yapo Abbé is, for her, a real threat to the sustainable management of its natural resources and its biodiversity. This investigation should be carried out in other reserved forests of Côte d'Ivoire for the sustainable management of their natural resources.
Les maladies métaboliques et cardiovasculaires sont impliquées dans la survenue du syndrome métabolique (SMet). Les plantes alimentaires peuvent être une alternative importante dans leur prévention. L'objectif de ce travail est d'évaluer les connaissances des populations de la Région du N'Zi qui se trouvent au Centre-Est de la Côte d'Ivoire. Ces différentes plantes
Les séquelles, après un accident vasculaire cérébral, sont importantes et les patients handicapés moteurs très nombreux. La présente étude a pour objectif de définir le profil phytochimique des cinq plantes les plus utilisées pour traiter les séquelles des AVC en Côte d’Ivoire, d’évaluer leur capacité antioxydante et leur toxicité. Après le screening phytochimique, la teneur en phénols et flavonoïdes ont été quantifiés par la méthode colorimétrique de Folin-Ciocalteu. L’évaluation quantitative du potentiel antioxydant des extraits a été réalisée in vitro par le test au DPPH (1,1-diphényl-2-picryl-hydrazyle). Les tests ont mis en évidence la présence de polyphénols, de tanins et de flavonoïdes dans tous les extraits aqueux. Ces métabolites sont importants dans la prévention et le traitement des maladies cardio-vasculaires. Les taux les plus élevés de polyphénols sont présents dans les extraits aqueux d’écorce de tige de Ficus mucuso (83425,29 μg EAG/g MS) et de rameaux feuillés de Zizyphus mauritiana (74517,24 μg EAG/g MS). La plus forte teneur en flavonoïdes a été observée dans l’extrait aqueux de rameaux feuillés de Ziziphus mauritiana (20,28%). Des capacités antioxydantes importantes ont été observées dans les extraits aqueux du mélange écorces de tige/feuilles de Tamarindus indica (CI50 = 0,1269 mg/ml) et dans l’extrait d’écorce de tige de Ficus mucuso (0,1335 mg/ml). Les tests de toxicité aigüe montrent que l’extrait aqueux de l’écorce de tige de Ficus mucuso, par voie orale, à 5000 mg/kg de pc, est légèrement toxique chez les souris.Mots clés : AVC, séquelles, plantes médicinales, phytochimie, toxicité. English Title: Phytochemistry, antioxidant activity and acute toxicity of medicinal plants used against the sequelae of stroke in Côte d’IvoireThe sequelae after a stroke are significant and there are many patients with motor disabilities. The purpose of this study is to define the phytochemical profile of the five plants most used to treat the sequelae of stroke in Côte d'Ivoire, to assess their antioxidant capacity and their toxicity. After the phytochemical screening, the content of phenols and flavonoids were quantified by the colorimetric method of Folin-Ciocalteu. The quantitative evaluation of the antioxidant potential of the extracts was carried out in vitro by the DPPH (1,1-diphenyl-2-picryl-hydrazyl) test. The tests revealed the presence of polyphenols, tannins and flavonoids in all the aqueous extracts. These metabolites are important in the prevention and treatment of cardiovascular disease. The highest levels of polyphenols are found in aqueous extracts of stem bark of Ficus mucuso (83425.29 μg EAG/ g DM) and leafy twigs of Zizyphus mauritiana (74,517.24 μg EAG / g DM). The highest content of flavonoids was observed in the aqueous extract of leafy twigs of Ziziphus mauritiana (20.28%). Significant antioxidant capacities were observed in the aqueous extracts of the stem bark / leaf mixture of Tamarindus indica (IC50 = 0.1269 mg / ml) and in the extract of the stem bark of Ficus mucuso (0.1335 mg / ml). Acute toxicity tests show that the aqueous extract of the stem bark of Ficus mucuso, taken orally, at 5000 mg / kg bw, is slightly toxic in mice.Keywords: Stroke, sequelae, medicinal plants, phytochemistry, toxicity.
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