A study of the antibacterial and antifungal activity of three species of aloe native to Rwanda

MARIE LuCIE CHANTAL NYIRAGARuKA, Emmanuel Songa Bajyana & Jean Pierre Mugiraneza

Author address: 

National University of Rwanda, South Province, Rwanda


Traditional medicines are currently the basis for much of the primary health care delivered in tropical nations. Plant species endowed with therapeutic properties, useful against human ailents, represent one of the most powerful economic arguments in favour of maintaining the world’s biological diversity. Aloe is well known for certain medicinal properties, about 420 species have been identified globally. There are 6 species native to Rwanda, and it is widely used for treatment of skin maladies and HIV/AIDS. In this study, we explored the antibacterial activity and fungicidal activity of three varieties of Aloe native to Rwanda, Aloe dawei, Aloe Volkenssi and Aloe sp. We compared proteins extracted from these varieties and found significant differences in protein content and medicinal properties. We found that the Rwandan Aloe species studied possess antibacterial properties at extract concentrations varying from 10-12.5 μg/ml against the majority of Gram-positive and Gram-negative bacteria. However we did not identify any antifungal properties. Our results suggest that Rwandan Aloe is an effective antibacterial plant. More detailed studies of the active properties of these species, as well as their diversity, distribution and the conservation status are needed in Rwanda

abstract No: 


Full conference title: 

Society for General Microbiology
    • SGM 2012