Antimicrobial analysis, black soap variants, indigenous, honey, lime, turmeric.


International Research Journal of Medicine and Biomedical Sciences

Original Research Article

Comparative antimicrobial analysis of indigenous black soap variants

Oleghe O. Peace*1, Agholor Kin2, Orhewere D. A. Regina3  and Orhewere A.Victory4

1Department of Biological Science Laboratory Technology, Auchi Polytechnic, Auchi, Edo State, Nigeria.
2Department of Biological Science, Niger State Polytechnic, Zungeru, Niger State, Nigeria.
3Department of Basic Sciences, Auchi Polytechnic, Auchi, Edo State, Nigeria
4Department of Microbiology, University of Abuja FCT, Abuja, Nigeria.

*Corresponding Author E-mail: kinagholor(at)

Tel: +2347062361650

Oleghe O. Peace

Agholor Kin

Orhewere D. A. Regina

Orhewere A.Victory

Article Number: irjmbs.22.003  |   Pages: 24-30  |   Vol. 7 (2), September 2022   |   DOI:

 Received: April 22, 2022  Accepted: June 3, 2022  Published: September 15, 2022


The in-vitro antimicrobial efficacy of Indigenous Black Soaps (IBS) to promote and increase the awareness of the economic viability of these skin-care products were comparatively evaluated in this study. Three (3) different locally produced black soups variants (turmeric, honey and lime) and two (2) different commercially available black soap in Nigeria (Dudu-Osun® and Zee black soap®) were analyzed against some selected microorganisms isolated from human skin. The clinical isolates were Staphylococcus aureus, Pseudomonas aeruginosa and Candida albicans. The susceptibility pattern of each of the tested organism to the different soap samples was determined using agar well diffusion method. The result obtained from this study reveals that the commercially available black soaps and the locally produced once, showed significant antimicrobial activities against the test organisms. This justifies the use of the traditional materials found in back soaps as potent antiseptics. The average inhibition zone diameter (IZD) of the locally produced black soap containing turmeric showed the highest zone of inhibition (41.1mm) and the locally produced black soap with lime (8 mm) was the least. The percentage of activity of the soaps on the test organisms showed that Staphylococcus aureus displayed higher susceptibility to most of the black soaps compared to Candida albicans and Pseudomonas aeruginosa. Therefore, it is recommended that locally produced soaps with turmeric and honey could be considered as viable alternatives in future topical and skin-care formulations for the treatment of infections caused by the tested organisms used in this study.


Antimicrobial analysis, black soap variants, indigenous, honey, lime, turmeric.

How to Cite this Article

Oleghe OP, Agholor K, Orhewere DAR Orhewere AV (2022). Comparative antimicrobial analysis of indigenous black soap variants. Int. Res. J. Med. Biomed. Sci. 7(2):24-30.

Author(s) retain the copyright of this article. Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.

Select Language »