PURIFICATION AND BIOLOGICAL ACTIVITIES OF COMBINATION OF HEMI-SYNTHESIZED THIOSEMICARBAZONES OF  MITRACARPUS SCABER ZUCC

BAMBOLA Bouraima; HOUNGBEME Gouton Alban; FAGBOHOUN Louis; MEDEGAN Sèdami; GBAGUIDI Ahokanou Fernand

doi:10.22270/ujpr.v4i6.335

BAMBOLA Bouraima Pharmacognosy Laboratory/Institute for Research and Experimentation in Traditional Medicine and Pharmacopoeia (IREMPT)/ Beninese Center for Scientific Research and Innovation (CBRSI). 01 BP 06 Oganla Porto-Novo, Benin.
HOUNGBEME Gouton Alban Pharmacognosy Laboratory/Institute for Research and Experimentation in Traditional Medicine and Pharmacopoeia (IREMPT)/ Beninese Center for Scientific Research and Innovation (CBRSI). 01 BP 06 Oganla Porto-Novo, Benin.
FAGBOHOUN Louis Pharmacognosy Laboratory/Institute for Research and Experimentation in Traditional Medicine and Pharmacopoeia (IREMPT)/ Beninese Center for Scientific Research and Innovation (CBRSI). 01 BP 06 Oganla Porto-Novo, Benin.
MEDEGAN Sèdami Organic Pharmaceutical Chemistry Laboratory, School of Pharmacy, Faculty of Health Sciences, University of Abomey-Calavi, Campus du Champ de Foire, 01 BP 188, Cotonou, Benin.
GBAGUIDI Ahokanou Fernand Pharmacognosy Laboratory/Institute for Research and Experimentation in Traditional Medicine and Pharmacopoeia (IREMPT)/ Beninese Center for Scientific Research and Innovation (CBRSI). 01 BP 06 Oganla Porto-Novo, Benin. Organic Pharmaceutical Chemistry Laboratory, School of Pharmacy, Faculty of Health Sciences, University of Abomey-Calavi, Campus du Champ de Foire, 01 BP 188, Cotonou, Benin.

10.22270/ujpr.v4i6.335

Keywords:

Biological activities, chromatography, hemi synthesis, Mitracarpus Scaber, thiosemicarbazone

Abstract

Objective: The harvested Mitracarpus Scaber plants are identified in the national herbarium and registered under the number AA. 6252/HLB. During this work, three crude extracts are prepared from three organic solvents, namely dichloromethane; ethanol and hydroethanol in 50/50 v/v proportion.

Methods: The respective alkaloid extracts obtained from the corresponding crude extracts served as substrates for the hemi synthesis of thiosemicarbazone totals from thiosemicarbazides. The three hemi-synthesis products obtained were tested on eight (08) strains of germs, namely E. coli ATCC 25922, S. aureus ATCC 25923, E. faecalis ATCC 22921, P. aeruginosa ATCC 27853, C. albicans ATCC 10231, S. typhi, K. pneumoniae and Dermatophilus 146.

Results: The ethanolic extract of thiosemicarbazones exhibited the best bioactive activity and was found to be the most selective. By a series of bioguided chromatographies: TLC thin layer chromatography; CPA atmospheric pressure chromatography and medium pressure liquid chromatography. MPLC (medium pressure liquid chromatography), separation on dextran gel: Sephadex® LH20). The use of available spectral data, cross-checked with that of the literature, made it possible to identify and purify three (03) molecules of thiosemicarbazones, making it possible to study the biological activity of their combination.

Conclusion: On the basis of results, this work has made it possible to confirm the concept which affirms that medicinal plants are libraries of several thousand molecules.