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Feb 5, 2016Keywords:
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Phytochemical analysis and antioxidant activities of Combretum molle and Pericopsis laxiflora
Abstract
In Burkina Faso as in several African countries, diabetes is becoming a very serious disease and public concern. Patients use both drugs and plants for treatment. Thus, Combretum molle and Pericopsis laxiflora have been identified as plants used in Burkina Faso for the treatment of that disease. The aim of the study was to assess phytochemical components and antioxidant activities of those plants in order to highlight why diabetes patients refer to them. The phytochemical analysis of water, ash quantification and screening were done using the standard methods; the antioxidant activities of the ethanolic extract against 2, 2-diphenyl-1- picryl-hydrazyl (DPPH), nitric oxide (NO) and hydroxyl radical were performed using colorimetric or spectrophotometric methods. The Inhibitory Concentration (IC) was determined using GraphPad Prism version 5. The results showed 6.76±0.076% and 7.52±0.015% of water contents in Combretum molle and Pericopsis laxiflora, respectively. The ash content was 3.41±0.35% for Combretum molle and 3.87±0.15% for Pericopsis laxiflora. The screening revealed the presence of tannins, phenolic compounds, flavonoids and saponins in both plant materials. However, alkaloids were found in Pericopsis laxiflora and hydrolysables tannins and heterosides cardiotonics in Combretum molle. The IC50 for the extract plant of Combretum molle was 42 μg/mL and that of the Pericopsis laxiflora was 44.15 μg/mL for DPPH radical. The antioxidant effect of the extract plant of Combretum molle was 216 μg/mL and the extract plant of Pericopsis laxiflora was 225 μg/mL on the nitric oxide radical. It was concluded that the presence of tannins, flavonoids, phenolic compounds, saponin, alkaloids and cardiotonic heterosides, explains why traditional medicine uses both plants together to treat certain diseases. However, further investigations of the pharmacological potential for diabetes treatment are needed.
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Keywords: Phytochemical, antioxidant activities, Combretum molle, Pericopsis laxiflora, Burkina Faso
