scholarly journals Antifungal Activity of Essential Oil ofEucalyptus camaldulensisDehnh. against SelectedFusariumspp.

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Martin Muthee Gakuubi ◽  
Angeline W. Maina ◽  
John M. Wagacha

The objective of this study was to evaluate the antifungal activity of essential oil (EO) ofEucalyptus camaldulensisDehnh. against fiveFusariumspp. commonly associated with maize.The essential oil had been extracted by steam distillation in a modified Clevenger-type apparatus from leaves ofE. camaldulensisand their chemical composition characterized by gas chromatography mass spectrometry. Poisoned food technique was used to determine the percentage inhibition of mycelial growth, minimum inhibitory concentration, and minimum fungicidal concentration of the EO on the test pathogens. Antifungal activity of different concentrations of the EO was evaluated using disc diffusion method. The most abundant compounds identified in the EO were 1,8-cineole (16.2%),α-pinene (15.6%),α-phellandrene (10.0%), and p-cymene (8.1%). The EO produced complete mycelial growth inhibition in all the test pathogens at a concentration of 7-8 μL/mL after five days of incubation. The minimum inhibitory concentration and minimum fungicidal concentration of the EO on the test fungi were in the range of 7-8 μL/mL and 8–10 μL/mL, respectively. These findings confirm the fungicidal properties ofE. camaldulensisessential oils and their potential use in the management of economically importantFusariumspp. and as possible alternatives to synthetic fungicides.

2019 ◽  
Vol 3 (1) ◽  
pp. 59
Author(s):  
Miftahur Rahmi ◽  
Felicia Aileen Agustia

Background:Onions (Allium cepa L.) contain essential oil that have sulfur compounds called thiosulfinates  or isothiocyanates which are known to have antibacterial and antifungal effects. Minimum Inhibition Concentration (MIC) test is needed to determine the minimum concentration of onion essential oil which can inhibit or kill  fungus test. Objectives: To determine the antifungal activity of essential oil in onion (Allium cepa L.) and to find out the Minimum Inhibitory Concentration (MIC) on Candida albicans. Methods:This research was an experimental study with disc diffusion method (Kirby Bauer) using Sabourond Dextrose Agar (SDA) media. Results: The results were obtained at concentrations of 20% (C1); 10% (C2); 5% (C3); 2.5% (C4); 1.25% (C5); 0.625% (C6); and 0.312% (C7) provided inhibition with an average diameter of 13.14 mm; 9.33 mm; 8.49 mm; 6.90 mm; 0 mm; 0 mm; and 0 mm respectively. Conclusion: Essential oil of onion (Allium cepa L.) could inhibit fungal growth of Candida albicans and Minimum Inhibitory Concentration (MIC) of essential oil onions (Allium cepa L.) indicated on concentration of 2.5% with a flat diameter average of 6.90 mm.


2019 ◽  
Vol 14 (6) ◽  
pp. 1934578X1986037
Author(s):  
Chu T.T. Ha ◽  
Tran H. Thai ◽  
Nguyen T. Hien ◽  
Ha T.V. Anh ◽  
Le N. Diep ◽  
...  

The leaf and twig essential oils of Magnolia hypolampra, growing wild in Na Hang Nature Reserve, Tuyen Quang province of Vietnam, were obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry. The oil yield calculated on a dry weight basis from leaves of M. hypolampra was very high (1.62%, v/w), while that from twigs was much lower (0.07%, v/w). The essential oils were dominated by monoterpenoids (74.3% and 84.8%) and sesquiterpenoids (24.4% and 13.3%) with β-pinene (36.5% and 41.3%), α-pinene (23.7% and 24.4%), and germacrene D (14.6% and 5.8%) as respective major components. Antibiotic activity of the essential oil samples was tested against Gram-positive bacteria Staphylococcus aureus, Gram-negative bacteria Escherichia coli, and yeast Candida albicans using an agar disk diffusion method. Both the leaf and twig oils showed strong inhibition against all 3 tested microorganism strains with inhibition zones from 18.5 to 30.5 mm and from 45.5 to 46 mm, respectively. Minimum inhibitory concentration of the essential oils was determined using microdilution broth susceptibility assay against 7 test microorganism strains including Bacillus subtilis, Lactobacillus fermentum, Salmonella enterica, Pseudomonas aeruginosa, and 3 abovementioned strains. Minimum inhibitory concentration values of the essential oil from the twigs were from 2.0 to 8.2 mg/mL, while those from the leaves were from 4.1 to 16.4 mg/mL.


2020 ◽  
Vol 8 (5) ◽  
pp. 654-662
Author(s):  
Tia Vama Etienne ◽  
◽  
Cissé Mohamed ◽  
Allani Sophie Aka Christiane ◽  
◽  
...  

The objective of this study was to evaluate the antifungal activity of Lippia multiflor and Melaleuca leucadendron essential oils against three phytopathogenic fungi (Rhizopus sp., Fusarim sp., and Aspergillus sp.) associated with Ipomea batatas tuberous. Essential oils had been extracted by steam distillation method from leaves of selected plants and their chemical composition was characterized by gas chromatography-mass spectrometry (GC-MS). Essential oil composition characterization was followed by the estimation of percentage mycelial growth inhibition, minimum inhibitory concentration, and minimum fungicidal concentration of the isolated essential oils against the tested pathogens by the Sabouraud dilution medium method. Antifungal activity of different concentrations of isolated essential oils was evaluated by using the microdilution method. The most abundant compounds identified in the M. leucadendron essential oil are 1,8-cineole (38.2%), viridiflorol (13.4%), α-Pinene (12.5%), α-terpineol(9.2%), and geranial (22.8%) while L. multiflora essential oil have neral (18.7%), 1,8-Cineole (11.4%), α-Phellandrene (6.8%), sabinene (3.5%) as active ingredients. The concentration of essential oils which completely inhibited the mycelial growth and spore germination of all the tested pathogen varies and it was reported 0.33µL/mL and 0.66µL/mL for L. multiflora respectively while it was reported 24 µL/mL for M. leucadendron, for both effect, seven days of incubation. The minimum concentration of fungicidal essential oil against Aspergillus sp. was 0.33µL/mL for L. multiflora. The findings of the current study confirm the fungicidal properties of the tested essential oils and their potential use in the management of economically important fungal pathogens of Ipomea batatas. Further, these essential oils can be used as possible alternatives to synthetic fungicides.


INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (12) ◽  
pp. 39-44
Author(s):  
A. P. Pandit ◽  
◽  
K. S. Khandagale ◽  
V. C Nakhate ◽  
N. N Dharmadhikari

The objective of the study was to prepare antifungal gel using leaves of Amaranthus viridis for the treatment of cutaneous candidiasis. The leaves were studied for pharmacognostic evaluation. The powder of leaves was tested for phytoconstituents. The plant extract was evaluated for the minimum inhibitory concentration (MIC), minimum fungicidal concentration (MFC) and antifungal activity. Gel was prepared and evaluated for pH, viscosity, homogeneity and grittiness. MIC and MFC of extract were both found to be 600 mg. The zone of inhibition of extract was obtained at 21.2±0.2mm, which confirmed antifungal activity, due to presence of phenolic compound. Gel exhibited good antifungal activity, good spreadability, extrudability and high viscosity. Thus, gel loaded with leaves extract of A. viridis is a good choice for the treatment of cutaneous candidiasis.


2015 ◽  
Vol 7 (4) ◽  
pp. 412-416
Author(s):  
Mahboobeh NASSERI ◽  
Hossein AROUIEE ◽  
Shiva GOLMOHAMMADZADEH ◽  
Mahmoud Reza JAAFARI ◽  
Hossein NEAMATI

The present study aimed to determine minimum inhibitory concentration and minimum fungicidal concentration of the essential oil of Zataria multiflora to control Alternaria solani, Rhizoctonia solani, Rhizopus stolonifer, Aspergillus flavus, Aspergillus ochraceus and Aspergillus niger. The essential oil of Zataria multiflora was tested in vitro on PDA (malt extract agar medium) with eight concentrations: 0, 10, 50, 100, 200, 300, 400, 500, 600, 700, 800, 900 and 1000 ppm. This investigation followed the completely randomized design (CRD) with three replications. GC-MS evaluations of the essential oil revealed that thymol (35%), carvacrol (34%), cymene-p (9.89%), gamma-terpinene (5.88%) and alpha-pinene (4.22%) were the main compounds of Zataria multiflora oil. The results showed that the essential oil of Zataria multiflora has antifungal activity; the lowest inhibition (75%) was observed in the A. niger, while the highest inhibition (95.3%) was observed in A. solani. Minimum inhibitory concentration for A. solani, R. solani, R. stolonifer, A. flavus, A. ochraceus and A. niger was 200, 200, 200, 300, 300 and 200 ppm respectively. In addition, the present results showed that minimum fungicidal concentration (MFC) for A. solani, R. solani, R .stolonifer, A. niger and A.ochraceus was 600, 400, 300, 900 and 700 ppm respectively and none of the tested concentrations were fatal for A. flavus. A. solani and R. solani showed a strong sensitivity to Zataria multiflora essential oil at all concentrations. Findings of the current study suggest that essential oils of Zataria multiflora could be used for control of postharvest phytopathogenic fungi on fruits or vegetables.


2014 ◽  
Vol 9 (9) ◽  
pp. 1934578X1400900
Author(s):  
Camila Hernandes ◽  
Silvia H. Taleb-Contini ◽  
Ana Carolina D. Bartolomeu ◽  
Bianca W. Bertoni ◽  
Suzelei C. França ◽  
...  

Reports on the chemical and pharmacological profile of the essential oil of Schinus weinmannifolius do not exist, although other Schinus species have been widely investigated for their biological activities. This work aimed to evaluate the chemical composition and antimicrobial activity of the essential oil of S. weinmannifolius collected in the spring and winter. The essential oils were extracted by hydrodistillation, analyzed by GC/MS and submitted to microdilution tests, to determine the minimum inhibitory concentration. The oils displayed different chemical composition and antimicrobial action. Bicyclogermacrene and limonene predominated in the oils extracted in the winter and spring, respectively, whereas only the latter oil exhibited antifungal activity.


2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Awol Mekonnen ◽  
Berhanu Yitayew ◽  
Alemnesh Tesema ◽  
Solomon Taddese

In this study, thein vitroantimicrobial activities of four plant essential oils (T. schimperi,E. globulus,R. officinalis, andM. Chamomilla) were evaluated against bacteria and fungi. The studies were carried out using agar diffusion method for screening the most effective essential oils and agar dilution to determine minimum inhibitory concentration of the essential oils. Results of this study revealed that essential oils ofT. schimperi,E. globulus, andR. officinaliswere active against bacteria and some fungi. The antimicrobial effect ofM. chamomillawas found to be weaker and did not show any antimicrobial activity. The minimum inhibitory concentration values ofT. schimperiwere<15.75 mg/mL for most of the bacteria and fungi used in this study. The minimum inhibitory concentration values of the other essential oils were in the range of 15.75–36.33 mg/mL against tested bacteria. This study highlighted the antimicrobial activity of the essential oil ofE. globulus,M. chamomilla,T. Schimperi, andR. officinalis. The results indicated thatT. schimperihave shown strong antimicrobial activity which could be potential candidates for preparation of antimicrobial drug preparation.


2019 ◽  
Vol 5 (1) ◽  
pp. 23
Author(s):  
Rahayu Kusdarwati, Ayu Ratnaningtyas, Dewa Ketut Meles

Abstract Saprolegnia sp. is a fungus that causes the Saprolegniasis disease can infection eggs and fresh water fish. Treatment Saprolegniasis done using chemical drugs, however the use of drugs is bad for the environment and biota. The purpose of the research was to determined the antifungal activity include a minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) from Kaempferia galanga L. to Saprolegnia sp. by in vitro. This research used 9 different concentrations of Kaempferia galanga L extract were 50%, 12.5%, 6.25%, 3.12%, 1.56%, 0.78%, 0, 39%, 0.2%, positive control used H2O2 3% and negative control used DMSO 10%. The results showed that the extract of Kaempferia galanga L had an antifungal activity were inhibits and kill with minimum inhibitory concentration (MIC) was 0.39% equivalen with 3,9 mg/ml and minimu fungicidal concentration (MBC) was 1.56% equivalen with 15,6 mg/ml. The existence of antifungal activity against Saprolegnia sp. by in vitro caused by some active compounds from the extracts of the Kaempferia galanga L. are polyphenolic compounds, flavonoin, saponins and essential oils.


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.


1970 ◽  
Vol 25 (2) ◽  
pp. 85-89 ◽  
Author(s):  
Jaripa Begum ◽  
M Nazrul Islam Bhuiyan ◽  
Jasmin Uddin Chowdhury ◽  
M Nuzmul Hoque ◽  
M Nural Anwar

The essential oil of Carum carvi L. seeds was screened for its antimicrobial activity against ten pathogenic bacteria and six phytopathogenic fungi. The essential oil showed promising inhibitory activity against all the test bacteria, even at 2 ìl/disc. The minimum inhibitory concentration (MIC, 100-300 ppm) and minimum bactericidal concentration (MBC, 200-400 ppm) values of essential oil were determined. The antifungal screening of the essential oil showed 100% inhibition of radial mycelial growth of all the test fungi at 100 ppm. The MIC and minimum fungicidal concentration (MFC) values were found to vary from 50-300 ppm and 200-400 ppm respectively. The essential oil extracted by hydrodistillation from seeds of C. carvi was analyzed by gas chromatography-mass spectrometry (GC-MS). About 10 compounds had been identified in the seeds oils, accounting for more than 99.7% of the oils. The main components of the seeds oil were thymol (48.20%), o-cymene (19.29%), ϒ-terpinen (17.61%) and trimethylene dichloride (8.81%). Keywords: Antimicrobial activities; Carum carvi; Essential oil; GC-MS; ThymolDOI: http://dx.doi.org/10.3329/bjm.v25i2.4867 Bangladesh J Microbiol, Volume 25, Number 2, December 2008, pp 85-89


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