Antibacterial Activity of Lantana camara montevidensis Leaf Extract on Wound Isolates Using Animal Models

Ofonime M. Ogba^1*,Edim S.Nyambi¹, Oluwayemisi A. Olorode², Enosakhare Asemota¹

¹Department of Medical Laboratory Science, Faculty of Allied Medical Sciences, University of Calabar, Nigeria

²Department of Medical Laboratory Science, Faculty of Basic Medical Sciences, Niger Delta University, Ammasoma, Bayelsa State, Nigeria

Corresponding Author: [email protected]; [email protected] ; Tel: +2348035404728

Recieved Date: 28 September 2021; Accepted Date: 28 December 2021; Published Date: 04 January

Citation: Ogba OM, Nyambi ES, Olorode OA, Asemota E. Antibacterial Activity of Lantana camara montevidensis Leaf Extract on Wound Isolates Using Animal Models.Trop J Nat Prod Res. 2021; 5(12): 2160-2164 http://www.doi.org/10.26538/tjnpr/v5i12.20

Copyright:

© 2021 Ogba et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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ABSTRACT

Many communities in Nigeria and other African countries use plants to treat various infections, including wounds. This study was aimed to determine the antibacterial activity of Lantana camara montevidensis leaf extract on wound isolates using animal models. Lantana camara leaves were shade-dried, pulverized and extracted by Soxhlet method in methanol and water before standardization for use. Extract concentrations of 100 µg/mL, 50 µg/mL, 25 µg/mL and 12.5 µg/mL were prepared for topical treatment of the Wistar rats’ incision wounds. Thirty healthy mature male Wistar rats weighing 120-170 g were used for this study. All the animals were wounded by making incisions on the neck region close to the scapula with initial wound area of 20.0 mm2.  Pseudomonas aeruginosa and Staphylococcus aureus were introduced into each wound incision. Results revealed that the susceptibility rate to antibiotics ranged from 10.0% – 70.0%. The susceptibility rate of the bacterial isolates to different concentrations of the extract (100, 50, 25 and 12.5 µg/mL) ranged from 0.0 – 60.0%. The isolates were most susceptible to 100 µg/mL methanol extract but were all resistant to the aqueous extract. Methanol extract had broad spectrum antimicrobial activity on wound isolates. Histologically, there was damaged tissue repair indicated by the presence of fibrocollagen formation with mild inflammatory cells. Therefore, Lantana camara montevidensis crude extract may be used for bacterial wound infection management.