@article{MAKHILLRJMS20093211671,
    title = {Evaluation of Flavonoids and Total Phenolic Contents of Stem Bark and Leaves of <I>Parkia biglobosa</I> (Jacq.) Benth. (Mimosaceae)-Free Radical Scavenging and Antimicrobial Activities},
    journal = {Research Journal of Medical Sciences},
    volume = {3},
    number = {2},
    pages = {70-74},
    year = {2009},
    issn = {1815-9346},
    doi = {rjmsci.2009.70.74},
    url = {https://makhillpublications.co/view-article.php?issn=1815-9346&doi=rjmsci.2009.70.74},
    author = {H. Millogo-Kone,M. Lompo,F. Kini,S. Asimi,I.P. Guissou and},
    keywords = {Parkia biglobosa,total phenolics,flavonoids,antioxidant,antimicrobial},
    abstract = {The total phenolics and the flavonoids contents of stem barks and leaves of <I>Parkia biglobosa</I> harvested at different periods of the year, on 2 different areas of Burkina Faso (Yako and L&egrave;na), were determined. The total phenolics were extracted according to Harborne&#146;s method and also by the means of a soxhlet apparatus. The determination of the phenolics contents was conducted with 8 extracts using tannic acid as standard. The flavonoids contents of the 8 extracts were also determined, using quercetin as a reference substance. The results showed that the total phenolics contents vary significantly all year round at the same area and also from L&egrave;na to Yako. They also revealed that the flavonoids contents of the leaves harvested at Yako ranged from 1.49-1.80% throughout the year. The results also confirmed that the leaves contain more flavonoids than the barks. Antioxidant activity was determined by the means of 1, 1-diphenyl-2-picrylhydrazyl (DPPH) assay. The results showed effectiveness with a radical inhibition ranging from 25.53&plusmn;3.56-55.449&plusmn;4.53 mg mL<SUP>-1</SUP>. The antibacterial assays on gram positive <I>Staphylococcus aureus </I>showed that the hydroalcoholic extract of stem bark harvested in May at Yako was the most effective of all the extracts.}
    }