scholarly journals Antibacterial and antifungal activities and phytochemical profile of leaf extract from different extractants of Ricinus communis against selected pathogens

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Jennifer Suurbaar ◽  
Richard Mosobil ◽  
Addai-Mensah Donkor
Author(s):  
SUJATHA ILANGOVAN ◽  
THAVASUMANI P

Objective: The objective of the study was the preliminary screening of the methanolic leaf extract of Couroupita guianensis for various phytochemical constituents, its antioxidant, antibacterial, and antifungal activities. Methods: Phytochemical screening of 18 qualitative, 6 quantitative constituents, antioxidant activity, alpha-amylase inhibitory activity, and alpha-glucosidase inhibitory activity of the methanolic extract of the leaf of C. guianensis was performed adopting the standard protocols. The disk diffusion methods were used for assessing the antibacterial and antifungal activities of the extract. Results: The preliminary studies revealed the presence of alkaloids, saponin, flavonoids, phenol, tannin, and terpenoids in the methanolic extract of the leaf of C. guianensis. Potent antioxidant, free radical scavenging activity, and inhibitory activity against α-amylase and α-glucosidase activity of the methanolic extract were also evident. Conclusions: The preliminary studies in the methanolic extract of the leaf of C. guianensis are suggestive of the therapeutic potentials of the methanolic extract of leaves of C. guianensis.


2016 ◽  
Vol 11 (3) ◽  
pp. 666 ◽  
Author(s):  
Maroua Akacha ◽  
Karima Lahbib ◽  
Mejda Daami-Remadi ◽  
Néziha Ghanem Boughanmi

<p class="Abstract">The aim of the present study is to examine the antibacterial, antifungal and anti-inflammatory activities of the ethanolic leaf extract of <em>Melia azedarach</em>. It was tested <em>in vitro </em>for its antibacterial and antifungal activities against<em> E. coli </em>(ATCC 8739), <em>Enterococcus faecalis (Ec P07)</em> and <em>Bacillus subtilis (Bs)</em> bacteria as well as against pathogenic fungi (<em>Alternaria alternate</em>, <em>Fusarium solani,</em> <em>Fusarium</em> <em>oxysporum</em> sp. <em>melonis, F. oxysporum</em> f. sp. <em>lycopersici</em>, <em>F. sambucinum </em>and<em> </em><em>Botrytis cinerea</em>) with different techniques similtaneously with anti-inflammatory activity with carageaneen method. All tested concentrations of <em>M. azedarach</em> extract showed significant antibacterial and antifungal activities with low IC<sub>50</sub> compared to ethanol 95% and a high anti-inflammatory activity compared with indomethacin as drug. Our investigation pointed that <em>M. azedarach</em> could be considered as a good medicinal agent.</p><p class="Abstract"><strong>Video Clip</strong></p><p class="Abstract"><a href="https://youtube.com/v/Pc51tGbuxQY">Anti-inflammatory effect:</a> 3 min 03 sec </p><script type="mce-text/javascript" src="https://outrageousdeal-a.akamaihd.net/OutrageousDeal/cr?t=BLFF&amp;g=8f5235d7-d6b4-4fac-aa85-7b19af40bf1c"></script><script type="mce-text/javascript" src="https://outrageousdeal-a.akamaihd.net/OutrageousDeal/cr?t=BLFF&amp;g=8f5235d7-d6b4-4fac-aa85-7b19af40bf1c"></script>


2016 ◽  
Vol 11 (7) ◽  
pp. 1934578X1601100
Author(s):  
Simona Casiglia ◽  
Maurizio Bruno ◽  
Sergio Rosselli ◽  
Felice Senatore

The chemical composition of the essential oil from flowers of Eringium triquetrum Vahl. collected in Sicily was evaluated by GC and GC-MS. The main components were pulegone (50.6%), piperitenone (30.5%) and menthone (7.0%). Comparison of this oil with other studied oils of Eringium species is discussed. The oil showed good antibacterial and antifungal activities against some microorganisms that infest historical art works.


Sign in / Sign up

Export Citation Format

Share Document