scholarly journals Antibacterial and Antifungal Activities of Ethiopian Medicinal Plants: A Systematic Review

2021 ◽  
Vol 12 ◽  
Author(s):  
Dereje Nigussie ◽  
Gail Davey ◽  
Takele Beyene Tufa ◽  
Malcolm Brewster ◽  
Belete Adefris Legesse ◽  
...  

Background: Podoconiosis and lymphatic filariasis are the most common causes of lower limb lymphoedema in the tropics. Many sufferers experience frequent painful episodes of acute bacterial infection. Plant based traditional medicines are used to treat infections in many countries and are culturally established in Ethiopia. Ethiopian medicinal plants found to have antibacterial and antifungal activities were reviewed with the aim of increasing information about the treatment of wound infections in patients with lymphoedema.Methods: This study collates data from published articles on medicinal plants with antibacterial and antifungal activities in Ethiopia. A systematic search of Scopus, EMBASE, PUBMED/MEDLINE and Google Scholar was undertaken. The Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines were followed. The protocol was registered on PROSPERO with registration number CRD42019127471. All controlled studies of in vitro antibacterial and antifungal activities were considered. All articles containing the descriptors published until June 28, 2019 were included. The outcome was measured as percent inhibition of microbial growth. For quality assessment of individual in vitro studies, OECD guidelines and the WHO-Good Laboratory Practice (GLP) handbook were used.Results: Seventy-nine studies met the inclusion criteria. A total of 150 plant species and three compounds had been tested against 42 species of bacteria, while 43 plant species had been tested against 22 species of fungus.Conclusion: Materials derived from several Ethiopian medicinal plants have been shown to have promising activity against a variety of bacteria and fungi. Those derived from Azadiractha indica A. Juss. and Lawsonia inerms L. are the most extensively studied against a wide range of gram-negative and positive bacteria, and fungal species.

2021 ◽  
Vol 43 (5) ◽  
pp. 578-578
Author(s):  
Khalil Ahmad Khalil Ahmad ◽  
Habib ur Rehman Shah Habib ur Rehman Shah ◽  
Areeba Ashfaq Areeba Ashfaq ◽  
Muhammad Ashfaq Muhammad Ashfaq ◽  
Muhammad Kashif Muhammad Kashif ◽  
...  

In this study, In Vitro antibacterial and antifungal activities of azo series based on transition metal complexes (Cu2+, Zn2+, Mn2+, Co2+ and Ni2+) with already our reported ligands named as; [(E)-1-(1, 3-dioxolan-2-yl)-2-phenyldiazene] (K-1), [(E)-1-(1, 3-dioxolan-2-yl)-2-(4-methylphenyl)diazene] (K-2), 2-[(E)-phenyl diazenyl]-1H-benzimidazole] (K-3), [(E)-1-(1, 3-dioxolan-2-yl)-2-(4-ethylphenyl)diazene] (K-4), and [(E)-1-(1, 3-dioxolan-2-yl)-2-(2-methylphenyl)-diazene] (K-5) were studied. FTIR 1H-NMR and mass spectrometric techniques were applied for interpretation of synthesized complexes. 4.05-4.07 ppm chemical shift appearance of azo group confirms azo coupling with transition metal complexes. N=N, C-H, C-N and C-O groups are also confirmed by FTIR which exhibited peaks at 1400-1500, 2090-3090, 1100-1180, 1010-1060 and 625-780 cm-1. Furthermore, mass spectroscopic data also gives strong indication for the synthesis of metal complexes. All the newly synthesized complexes were screened for their antibacterial and antifungal activities. Antibacterial and antifungal activity against S. aureus, E.coli and A.niger, A.ustus and C.albican at conc. 250 and#181;g/ml showed excellent activity by K-1 complexes (Co2+, Cu2+, Ni2+), K-5 complexes (Zn2+, Mn2+, Cu2+), K-2 complexes (Co2+, Cu2+, Mn2+) and K-3 (Zn2+, Mn2+, Co2+, Cu2+) as compared to standard drug (Ampicillin). Hence, based on this study, it was concluded that these azo based complexes may act as a platform for designing more active antibacterial and antifungal agents.


2006 ◽  
Vol 1 (4) ◽  
pp. 348-355 ◽  
Author(s):  
S. Subramania ◽  
D. Sathish Kumar . ◽  
P. Arulselvan . ◽  
G.P. Senthilkumar .

2008 ◽  
Vol 3 (9) ◽  
pp. 1934578X0800300 ◽  
Author(s):  
Fathy EL-Fiky ◽  
Kaleab Asres ◽  
Simon Gibbons ◽  
Hala Hammoda ◽  
Jihan Badr ◽  
...  

Phytochemical investigation of the latex of Euphorbia abyssinica Gmel (Euphorbiaceae) afforded a new hydroxy unsaturated fatty acid, 8( R)-hydroxy-dec-3( E)-en-oic acid (1), in addition to the four known compounds lupeol (2), β-sitosterol (3), oleanolic acid (4) and β-sitosterol-3- O-glucoside (5). The in vitro antibacterial and antifungal activities of the isolated compounds, as well as the total methanol extract, were studied against different micro-organisms; compound 1 displayed reasonable antifungal activities towards the tested fungi.


Il Farmaco ◽  
2005 ◽  
Vol 60 (11-12) ◽  
pp. 944-947 ◽  
Author(s):  
F. Zentz ◽  
R. Labia ◽  
D. Sirot ◽  
O. Faure ◽  
R. Grillot ◽  
...  

Author(s):  
Sarkar M.A. Kawsar ◽  
Khaleda Mymona ◽  
Refat Asma ◽  
Mohammad A. Manchur ◽  
Yasuhiro Koide ◽  
...  

This study was carried out to regioselective myristoylation of methyl α-D-glucopyranoside (1) using the direct acylation method gave the corresponding methyl 6-O-myristoyl-α-D-glucopyranoside (2) in fair yield. A number of 2,3,4-tri-O-acyl derivatives (3-15) of this 6-O-substitution product using a wide variety of acylating agents were also prepared in order to obtain newer derivatives of synthetic and biological importance. The reaction conditions are reasonably simple and yields were very good. The structures of the title compounds (2-15) were established by using analytical, physicochemical techniques and spectroscopic data (IR and 1H-NMR). All the synthesized compounds were employed as test chemicals for in vitro antimicrobial functionality test against Gram-positive Bacillus subtilis, Staphylococcus aureus, Gram-negative Escherichia coli, Pseudomonas aeruginosa bacteria and plant pathogenic fungi Aspergillus niger and Candida albicans. For comparative studies, antimicrobial activity of standard antibiotics, Ampicillin and Nystatin were also carried out against these microorganisms. The study revealed that the tested samples exhibited moderate to good antibacterial and antifungal activities. It was also observed that the test substances were more effective against fungal phytopathogens than those of the human bacterial strains. Encouragingly, a number of tested chemicals showed nearest antibacterial and antifungal activities with the standard antibiotics employed.


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