https://ijrdo.org/index.php/bs/issue/feed IJRDO - Journal of Biological Science (ISSN: 2455-7676) 2019-05-19T07:41:59+00:00 Naeem Akhtar editor@ijrdo.org Open Journal Systems <p>IJRDO Journal of Biological Sciences is a peer-reviewed and open access journal dedicated to publish and disseminate the high quality scientific research work in the broad field of biological sciences. Scope of the journal includes: Cell biology, developmental biology, structural biology, microbiology, molecular biology &amp; genetics, biochemistry, biotechnology, biodiversity, entomology, toxicology, ecology, freshwater biology, marine biology, environmental Biology, plant biology, Ethno-medicines and bioinformatics.<br><span style="font-size: 1.5em;"><strong> <span style="color: #fcbd0f; text-shadow: #666666 0px 0px 3px;">Current Impact Factor: 2.557</span></strong></span></p> https://ijrdo.org/index.php/bs/article/view/2870 Isolation and Partial Characterization of Flavone from Sudanese Acacia nilotica subsp. adstringens Pods and Antibacterial activity of Pod Fractions 2019-05-19T07:41:59+00:00 Mohamed,A.M. mohd_5860@hotmail.co.uk Mayada,I.S. no-reply@gmail.com Weam.A.K. no-reply@gmail.com <p>The methanolic extract of <em>&nbsp;Acacia nilotica </em>subsp. <em>adstringens</em> pods was fractionated over silica gel plates to give a flavonoid-compound I . The structure of compound I was partially characterized via some spectral data: &nbsp;UV, <sup>1</sup>HNMR . Different fractions of <em>acacia nilotica</em> were assessed &nbsp;for their antimicrobial activity against Gram negative<em> (Escherichia coli </em>and<em> Pseud</em>om<em>onas aeruginos</em>) , Gram positive (<em>Bacillus subtilis </em>and <em>Staphylococcus aureus)</em> and the yeast <em>Candida albicans</em>. The n-butanol and ethanol fractions showed moderate activity against <em>Pseudomonas aeruginosa</em>.The ethyl acetate fraction exhibited moderate activity against <em>Bacillus subtiles </em>while the chloroform fraction showed moderate activity against <em>Bacillus subtilis </em>and <em>Staphylococcus aureus.</em></p> 2019-05-17T06:22:16+00:00 Copyright (c) 2019 IJRDO - Journal of Biological Science (ISSN: 2455-7676)