Zizyphus mauritiana as a Source of Tannins with Antibacterial and Antiplasmodial Activities | Chapter 7 | Chemistry and Biochemistry: Research Progress Vol. 8

 

Background: In Africa and other countries where malaria is endemic, traditional medicinal plants are frequently used to treat or cure malaria. Ziziphus mauritiana, a tropical fruit tree species belonging to the family Rhamnaceae, is used in African traditional medicine against different symptoms and diseases.

 

Aim: This study was designed to evaluate tannins extracted from Ziziphus mauritiana as a source of potential antimalarial and antimicrobial agents in Mali.

 

Methodology: The collection of plant materials, tannins extraction, antibacterial activity evaluation were done at the University of Sciences, Techniques and Technologies of Bamako, Mali and antiplasmodial activity assessment at Department of Microbiology and Immunology, Weill Cornell Medicine, New York, United States of America, between September 2013 and February 2014. The tannins were extracted from leaves of Z. mauritiana collected around Bamako, Mali. Antiplasmodial activity was evaluated against 3D7 (chloroquine-sensitive) and Dd2 (chloroquine-resistant) strains of Plasmodium falciparum using the fluorescence-based SYBR® green I method. Antibacterial activity of tannins was evaluated by the disc diffusion method against strains of Escherichia coli, Salmonella Typhi, Streptococcus and Staphylococcus aureus donated by the National Research Institute in Public Health in Mali and collected from infected patients suffering from different diseases. The Kruskal–Wallis H test for data of zone of inhibition was used with the Statistical Package for the Medical Sciences version 17.0.

 

Results: The tannin extracts from leaves of Z. mauritiana demonstrated moderate antibacterial activity (average 7-9 mm diameter of inhibition zone) on tested strains. Tannins extracted from leaves of Z. mauritiana showed moderate antiplasmodial activity against 3D7 P. falciparum (46.9±1.12 μg/mL) and against Dd2 P. falciparum strains (67.8±2.39 μg/mL). They also showed an antibacterial activity on different bacterial strains, showing important inhibition zones. Especially, they were more active on Streptococcus than Escherichia coli, Salmonella typhi, and Staphylococcus aureus.

 

Conclusion: Tannins extracted from Z. mauritiana demonstrated good antiplasmodial and antibacterial activities. It could be regarded as effective and studied for further consideration as a complementary medicine source of antimicrobials against most multidrug-resistant bacteria and other parasites. These data confirm the potential use of tannins as a key element in antimalarial and antibacterial drug development.

 

Author(s) Details

Mamadou Wélé
African Center of Excellence in Bioinformatics and Data Science, Université des Sciences des Techniques et des Technologies de Bamako, Mali.

 

Singou Keita
Laboratoire de Biosciences et Applications, Université des Sciences des Techniques et des Technologies de Bamako, Mali.

 

Cheickna Cisse
African Center of Excellence in Bioinformatics and Data Science, Université des Sciences des Techniques et des Technologies de Bamako, Mali.

 

Mamadou A Konare
Laboratoire de Biosciences et Applications, Université des Sciences des Techniques et des Technologies de Bamako, Mali.

 

Laura Kirkman
Department of Medicine, Microbiology and Immunology, Weill Cornell Medicine, New York, USA.

 

Lamine Baba-Moussa
Laboratoire de Biologie et de Typage Moléculaire en Microbiologie, Faculté des Sciences et Techniques, Université d’Abomey-Calavi, Cotonou, Benin.

 

Please see the book here :- https://doi.org/10.9734/bpi/cbrp/v8/6695