Antibacterial activity of Tabernaemontana stapfiana Britten (apocynaceae) extracts
Bibliographic Data
| ID | 20346000 |
|---|---|
| Authors | EK Ruttoh (Kenyatta National Hospital), P Tarus, Paul K Tarus (Kenyatta University), Christine Bii (0000-0002-5635-3871, Kenya Medical Research Institute), Alex K Machocho (0000-0003-1525-6757, Kenyatta University), A Machocho, Leila Karimi (0000-0003-2364-504X, Kenyatta University), P Okemo (Kenyatta University) |
| Year | 2010 |
| Volume | 6 |
| Issue | 2 |
| Pages | 186-94 |
| Publication date | 2010-07-28 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | African Journal of Traditional Complementary and Alternative Medicines (JOURNAL) |
| Journal identifiers | ISSN: 0189-6016 • E-ISSN: 2505-0044 |
| Publisher | African Journals Online (AJOL) (PUBLISHER) |
| DOI | 10.4314/ajtcam.v6i2.57090 |
| PMID | 20209011 |
| OpenAlex | W2123588565 |
| Language | EN |
| Citations received | 2 |
| References cited | 2 |
Antibacterial and phytochemical screening of methanolic, sequential extracts (hexane, dichloromethane, ethyl acetate and methanol) and alkaloid rich fractions of Tabernaemontana stapfiana Britten was carried out. The phytochemical screening showed the presence of alkaloids, flavonoids, coumarins, tannins and saponins that have been associated with antimicrobial activity. The stem and root bark methanolic extracts showed good activity against the bacterial strains used including the multiple drug resistant Staphylococcus aureus strain with minimum inhibitory concentrations ranging from 15.6 to 500 microg/ml and minimum bactericidal concentrations ranging from 31.25 to 500 microg/ml. The sequential extracts of the root and stem bark had high antimicrobial activity with minimum inhibitory concentrations (MICs) ranging between 3.9 and 250 microg/ml and minimum bactericidal concentrations (MBCs) ranging between 7.8 and 500 microg/ml against the tested microorganisms. The dichloromethane extract of the alkaloid rich fractions however exhibited reduced antibacterial activities as compared to methanol and sequential extracts but the dichloromethane:methanol (4:1) mixture showed high activity with MICs ranging between 15.6 and 250 microg/ml. These antibacterial efficacy studies suggest that Tabernaemontana stapfiana Britten could be a source of antibacterial agents
Alkaloid · Antibacterial activity · Antibacterial agent · Antibiotics · Antimicrobial · Apocynaceae · Bacteria · Biological activity · Biology · Botany · Chromatography · Dichloromethane · Ethyl acetate · In vitro · Minimum inhibitory concentration · Pharmacognosy · Phytochemical · Solvent · Traditional medicine · Alkaloids: synthesis and pharmacology · Chemistry · Essential Oils and Antimicrobial Activity · Medicine · Phytochemistry and Biological Activities · Biochemistry · Microbiology
| Unique citing works | 2 |
|---|---|
| Citations per year | 0,14 |
| Citation span | 2012 - 2014 (3) |
| Citation velocity | historical |
| Highly cited | No |