scholarly journals Antifungal Activity of the Essential Oil of Echinops kebericho Mesfin: An In Vitro Study

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Tamirat Bekele Beressa ◽  
Serawit Deyno ◽  
Paul E. Alele

Background. Echinops kebericho is an endemic medicinal plant in Ethiopia widely used in the treatment of infectious and noninfectious diseases. Essential oils are known for their antibacterial, antifungal, antiviral, insecticidal, and antioxidant properties. This study evaluated the antifungal activity of essential oil from E. kebericho against four common pathogenic fungi and two standard strains. Methods. The essential oil was obtained by hydrodistillation. The antifungal screening was done by agar well diffusion method. Minimal inhibitory concentrations (MICs) were determined by broth microdilution. Minimal fungicidal concentrations (MFCs) were determined by subculturing fungal strains with no visible growth onto a Sabouraud dextrose agar (SDA) plate. Results. Candida albicans and Cryptococcus neoformans were highly sensitive while Aspergillus flavus did not show sensitivity up to 1 mg/ml of essential oil; MICs ranged from 0.083 mg/ml to 0.208 mg/ml. Concentration and fungal species showed significant dose-dependent associations ( p < 0.0001 ) with antifungal activity. The MICs of essential oil were comparable to those of the standard drug (fluconazole) against C. glabrata and C. krusei. The lowest MFC of the essential oil was observed against Candida parapsilosis (0.145 mg/ml) while the highest MFC was against Candida krusei (0.667 mg/ml). Conclusion. Echinops kebericho essential oil showed noteworthy antifungal activity against Cryptococcus neoformans, Candida albicans, and Candida glabrata and could be a potential candidate for further antifungal drug development.

2016 ◽  
Vol 30 (1-2) ◽  
pp. 7-10 ◽  
Author(s):  
Puspa Das ◽  
Shoma Dutta ◽  
Jaripa Begum ◽  
Md Nural Anwar

The essential oil of Pogostemon cablin (Blanco) Benth, also known as Patchouli oil was subjected for its antimicrobial investigation against a panel of ten human pathogenic bacteria and six human pathogenic fungi by Agar well diffusion method and Macrobroth dilution technique using Ampicillin (20ìg/well) and Nystatin (20ìg/well) as control. Antibacterial activity revealed that, the essential oil was more active against Gram positive bacteria than Gram negative bacteria. The largest zone of inhibition was 35 mm (against Bacillus cereus) with 20 ìl of oil. Ditermination of Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) showed that, Bacillus cereus exhibited the lowest MIC (250 ìg/ml) and MBC (750 ìg/ml). The oil showed moderate antifungal activity against all tested organisms. Candida albicans showed greater zone of inhibition (16 mm) than Saccharomyces cerevisiae (14 mm) with 20 ìl and Candida albicans showed lowest MIC and MFC (both were 750 ìg/ml). The zone of inhibition was 25 mm for each filamentous fungal strain with 20 ìl, except for Rhizopus oligosporus (15 mm) and the lowest MIC (250 ìg/ml) and MFC (500 ìg/ml) were reported for Aspergillus fumigatus.Bangladesh J Microbiol, Volume 30, Number 1-2,June-Dec 2013, pp 7-10


mSphere ◽  
2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Eric H. Jung ◽  
David J. Meyers ◽  
Jürgen Bosch ◽  
Arturo Casadevall

ABSTRACTSimilarities in fungal and animal cells make antifungal discovery efforts more difficult than those for other classes of antimicrobial drugs. Currently, there are only three major classes of antifungal drugs used for the treatment of systemic fungal diseases: polyenes, azoles, and echinocandins. Even in situations where the offending fungal organism is susceptible to the available drugs, treatment courses can be lengthy and unsatisfactory, since eradication of infection is often very difficult, especially in individuals with impaired immunity. Consequently, there is a need for new and more effective antifungal drugs. We have identified compounds with significant antifungal activity in the Malaria Box (Medicines for Malaria Ventures, Geneva, Switzerland) that have higher efficacy than some of the currently used antifungal drugs. Our best candidate, MMV665943 (IUPAC name 4-[6-[[2-(4-aminophenyl)-3H-benzimidazol-5-yl]methyl]-1H-benzimidazol-2-yl]aniline), here referred to as DM262, showed 16- to 32-fold-higher activity than fluconazole againstCryptococcus neoformans. There was also significant antifungal activity in other fungal species with known antifungal resistance, such asLomentospora prolificansandCryptococcus gattii. Antifungal activity was also observed against a common fungus,Candida albicans. These results are important because they offer a potentially new class of antifungal drugs and the repurposing of currently available therapeutics.IMPORTANCEMuch like the recent increase in drug-resistant bacteria, there is a rise in antifungal-resistant strains of pathogenic fungi. There is a need for novel and more potent antifungal therapeutics. Consequently, we investigated a mixed library of drug-like and probe-like compounds with activity inPlasmodiumspp. for activity against two common fungal pathogens,Cryptococcus neoformansandCandida albicans, along with two less common pathogenic species,Lomentospora prolificansandCryptococcus gattii. We uncover a previously uncharacterized drug with higher broad-spectrum antifungal activity than some current treatments. Our findings may eventually lead to a compound added to the arsenal of antifungal therapeutics.


2010 ◽  
Vol 9 (2) ◽  
pp. 60
Author(s):  
J.S. Al-Hussaini, and A. M. G. Al-Mohana

The aim of this study was to evaluate the antifungal activity of the ethanolic extract of three local plants ( Elettaria cardamomum, Aloe vera, Thyme Vulgaris) against the growth of pathogenic Candida albicans in culture media. The antifungal activity was carried out by using agar well diffusion method. Ethanolic extracts of Elettaria cardamomum and Aloe vera inhibited the growth of Candida albicans isolates at all concentrations which tested in the present study (25, 50, 100, 150, 200, and 400) mg/ml, while the extract of Thymus vulgaris showed no activity against tested Candida albicans


F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 559
Author(s):  
Tatiana de los Ángeles Mosquera Tayupanta ◽  
Sandra Elizabeth Ayala Valarezo ◽  
Tatiana Alexandra Vasquez Villareal ◽  
María Belén Montaluisa Álvarez

Background: Currently, there is a trend towards using natural and ethnopharmacological species with therapeutic potential. This investigation evaluated the antifungal activity of two species in the Ecuadorian Andes, which are used in treating dermatomycosis: Ambrosia arborescens Mill. (Marco) and Aristeguietia glutinosa Lam. (Matico). Methods: We worked with seven concentrations (100 to 700ppm) of Ambrosia arborescens Mill. extract and ten concentrations (0.5 to 5%) of essential oil (EO) of Aristeguietia glutinosa Lam. on Trichophyton mentagrophytes ATCC 9533, Trichophyton rubrum ATCC 28188, Microsporum canis ATCC 36299 and Candida albicans ATCC 10231. The methodology used was a modified version of the Kirby-Bauer method, using diffusion in agar wells. Results: The Tukey test, after the one-way Anova, determined effective concentrations of EO: 5% for Trichophyton mentagrophytes, 4.5% for Trichophyton rubrum, 5% for Microsporum canis and 2% for Candida albicans. In the extracts, the concentration of 700ppm was used for Trichophyton mentagrophytes, Trichophyton rubrum, and 600ppm for Microsporum canis and Candida albicans. Conclusions: The evaluation of the antifungal activity of the Ambrosia arborescens extract showed inhibition in the studied dermatophytes in each one of the planted concentrations (100 to 700ppm). The evaluation of the antifungal activity of Aristeguietia glutinosa EO showed inhibition in the studied dermatophytes in each of the planted concentrations (0.5 to 5%).


Author(s):  
Wadimuna Mudiyanselage Dharmasenage Ruvinika Wirajani Wadimuna ◽  
Gunarathnage Upul Anuruddha Kumara ◽  
W. L. A. Rajini Saroja Pushpakumari

Panchawalkala is one of the ideal herbal combinations in Ayurveda and it has therapeutic properties such as Vranaropana, Shothahara, Graahi and Visarpahara. And also researchers have been proven anthelmintic, antimicrobial, wound healing and anti-inflammatory activities of these plants in combination and individual too. Ghrita (Ghee) is one of the oil preparation made by cow’s milk and it has Balavardhaka, Ojovardhaka, Vayasthapaka, Dhatuposhaka properties and is supreme in Snehana Dravyas. Panchawalkala is widely used in Kwatha and Powder form. Shatadauta Ghrita is the most famous form of the Ghee. The advantages of different innovative preparations are; increased shelf life, ready to use, better acceptability and ease of application. This study was planned to evaluate in-vitro antifungal activity of traditional Panchawalkala Kwatha and innovative Panchawalkala Shatadauta Ghrita (the Ghrita, hundreds times purified by Panchawalkala Kwatha). It was assessed by adopting agar diffusion method. Each agar plate was divided into four equal parts and was cultivated the Candida albicans. Replicator device was used to inoculate multiple specimens on to two parts of three series of plates with respective drugs. Further, responses of organism to the trial drugs were measured and compared with standard drug of Fluconazole (+ve control) and distilled water (-ve control) by using other two parts of the agar plates. All the plates were incubated at 37°C for 24 hours. According to the findings, Panchawalkala Shatadauta Ghrita has an antifungal effect than Panchawalkala Kwatha. Fluconazole is the best antifungal drug among these and distilled water does not have any antifungal action. Hence, it can be concluded that, Panchawalkala Shatadauta Ghrita has antifungal activity rather than Panchawalkala Kwatha but not effective than Fluconazole.    


2011 ◽  
Vol 6 (11) ◽  
pp. 1934578X1100601 ◽  
Author(s):  
Dharmendra Singh ◽  
Umakant Sharma ◽  
Parveen Kumar ◽  
Yogesh K Gupta ◽  
M. P. Dobhal ◽  
...  

This study evaluated the in vitro antifungal activity of the chloroform extract of Plumeria bicolor and its phytoconstituents plumericin and isoplumericin against Candida species and Cryptococcus neoformans by measuring the Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration (MFC). Plumericin's consistently high activity against Candida albicans, C. krusei, C. glabrata, C. tropicalis and Cryptococcus neoformans was more potent than isoplumericin and the standard antifungal drug nystatin suggesting its potential as a drug candidate for candidiasis and cryptococcosis.


2018 ◽  
Vol 13 (9) ◽  
pp. 1934578X1801300 ◽  
Author(s):  
Daniele Fraternale ◽  
Donata Ricci

The present study reports the results of gas chromatography-mass spectrometry (GC/MS) analyses of the essential oil from flowering aerial parts of Cotinus coggygria Scoop. (Anacardiaceae), as well as its in vitro antifungal activity against nine plant pathogenic fungi. Moreover, the essential oil was evaluated for its antifungal activity using the agar dilution method, and also MICs (minimum inhibitory concentrations) and MFCs (minimum fungicidal concentrations) were determined. The major compounds identified by GC-MS were limonene (49.2%), (Z)-β-ocimene (13.6%), α-pinene (8.8%) and (E)-β-ocimene (5.9%). The oil showed in vitro antifungal activity against some species of the Fusarium genus, Botrytis cinerea, and Alternaria solani. Our study indicates that the oil of C. coggygria could be used as a control agent for plant pathogenic fungi in natural formulations.


2020 ◽  
Vol 150 ◽  
pp. 02003 ◽  
Author(s):  
Azeddin El Barnossi ◽  
Fatimazahrae Moussaid ◽  
Abdelilah Iraqi Housseini

Candida albicans an opportunistic pathogenic fungus causes many infections in humans. Whereas Aspergillus niger is a fungus that can produce ochratoxins, a group of extremely dangerous secondary metabolites that are classified as potentially carcinogenic to humans and also causing deterioration in grapes, strawberries, etc. The purpose of the current study is to isolate, purify, identify and characterize new microorganisms associated with solid green household waste for the control of C. albicans and A. niger. The antifungal activity of bacterial isolates was carried out in vitro by the agar plug diffusion method, the disk and well diffusion method. The isolate that showed promising activity has been identified by those macroscopic, microscopic and biochemical characteristics. The results obtained in the course of this study showed the isolation of an isolate named Gn-A11-18, which was shown to have significant inhibitory activity with a 42.66% inhibition percentage against A. niger and a 44.66 mm inhibition diameter against C. albicans compared to the controls. The identification of Gn-A11-18 isolate has shown that this isolate belongs to the genus Bacillus with a similarity to Bacillus subtilis and Bacillus tequilensis. In the light of the results of this study, we can suggest that the bioactive compound of Bacillus sp. Gn-A11-18 could become a biological alternate that could have an important role to fight against C. albicans and A. niger.


2020 ◽  
Vol 15 (6) ◽  
pp. 648-655
Author(s):  
Gabriel O. de Azambuja ◽  
Laura Svetaz ◽  
Itamar L. Gonçalves ◽  
Patricia F. Corbelini ◽  
Gilsane L. von Poser ◽  
...  

Background: Since the Monastrol discovery in 1999 as the first inhibitor of Eg5, functionalized dihydropyrimidinones/thiones (DHPMs) have emerged as prototypes for drug design in different targets. The present work aimed to evaluate the antifungal activity of a chemical library of DHPMs. Methods: The compounds were obtained employing Biginelli reaction. Their antifungal activities were assessed against C. neoformans and C. albicans. Results: The compounds 1-i and 1-k inhibited moderately the fungal growth of C. neoformans, with compound 2-k presenting MIC80 values of 62.5-125 µg·mL-1. Considering activity against C. albicans, the compounds 1-i and 1-n present an MIC50 value of 125-250 µg·mL-1. Conclusion: The changes performed in DHPM scaffold appear to be valuable for generating compounds with potential antifungal effect.


2021 ◽  
Author(s):  
M. Brahmi ◽  
D.E.H. Adli ◽  
M.Y. Boufadi ◽  
W. Arabi ◽  
K. Kahloula ◽  
...  

The principle aim of this work is to evaluate the antimicrobial and antiochratoxic power of the essential oil of Mentha spicata (EOM). This oil was obtained by hydrodistillation with a yield of 0.3%. EOM was screened for its possible antibacterial activity in vitro against five strains of pathogenic bacteria, using the solid disc diffusion method and the microdilution method. The extract reacted positively to the bacterial strains tested. The results of the antifungal activity show an inhibition of mycelial growth; it is total on Aspergillus ochraceus, Aspergillus flavus, Aspergillus niger, Penicillium viridicatum, and on Rhizopus stolonifer and Alternaria alternate at a concentration of 12.5 μl/ml. Tests carried out on yeasts mainly referenced as Candida albicans IP444 and Candida albicans 2679 showed minimal inhibition (MIC) of the order of 7.81 μl/ml and 0.97 μl/ml, respectively and theMICis of the order of 0.48 μl/ml for Candida albicans 10 231. In addition, the EOM antiochratoxigenic test for ochratoxin A production capacity following a series of high performance liquid chromatography separation and ultraviolet detection (HPLC–UV) analyses detected an inhibitory effect proportional to the EOM concentration. In general, the essential oil showed an effective antimicrobial action on the growth of the tested pathogens and an antiochratoxigenic.


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