scholarly journals Evaluation of antimicrobial activity of Terfezia arenaria extracts collected from Saharan desert against bacteria and filamentous fungi

3 Biotech ◽  
2019 ◽  
Vol 9 (7) ◽  
Author(s):  
Mohammed Harir ◽  
Hamdi Bendif ◽  
Merzouk Yahiaoui ◽  
Miloud Bellahcene ◽  
Fortas Zohra ◽  
...  
2014 ◽  
Vol 9 (5) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Imad Abdelhamid El-Haci ◽  
Chahrazed Bekhechi ◽  
Fewzia Atik-Bekkara ◽  
Wissame Mazari ◽  
Mohamed Gherib ◽  
...  

Three fruit oil samples of Ammodaucus leucotrichus Cosson & Durieu from Algerian Sahara were obtained by hydrodistillation and analyzed by GC(RI), GC-MS and 13C NMR spectroscopy. The main compounds were perillaldehyde (87.0-87.9%) and limonene (7.4-8.2%). The antimicrobial effect of the essential oil was evaluated against bacteria, yeasts and filamentous fungi. High antibacterial activity was observed against Escherichia coli, Staphylococcus aureus, Enterobacter cloaceae, Bacillus cereus and Salmonella typhimurium, with MIC values between 0.5-1.0 μL/mL. Fungal strains were also sensitive to the essential oil (MIC values: 0.25-0.75 μL/mL). The most potent activity was observed against the filamentous fungi, Fusarium oxysporum and Aspergillus flavus (0.25-0.50 μL/mL).


2010 ◽  
Vol 53 (6) ◽  
pp. 1363-1369 ◽  
Author(s):  
Dayana Lacerda Custódio ◽  
Rafaela Pinheiro Burgo ◽  
Bárbara Moriel ◽  
Aneli de Melo Barbosa ◽  
Maria Ines Rezende ◽  
...  

The present study describes the chemical composition and antimicrobial activity of essential oils obtained by hydrodistillation from the leaves of Pimenta pseudocaryophyllus (1.0% w/w) and Tynanthus micranthus (1.1% w/w). GC and GC/MS analysis demonstrated that eugenol was the only component in the T. micranthus essential oil (99.9%) and the major component in the P. pseudocaryophyllus essential oil (92.59%), which also presented methyleugenol, terpinen-4-ol, o-cymene and (E)-caryophyllene, among others. Both the oils presented antimicrobial activity against bacteria, yeast and filamentous fungi tested.The Bioautography test revealed that eugenol was the bioactive component in both the oils against Cladosporium herbarum. This is the first report about the T. micranthus essential oil, and the antifungal activity of P. pseudocaryophyllus. The results confirmed the potential of eugenol-rich essential oils not only as a source of flavor compounds, but also of use as antimicrobial agent in agriculture and in pharmaceutical and food products.


2006 ◽  
Vol 61 (7-8) ◽  
pp. 499-507 ◽  
Author(s):  
Hayrettin Türk ◽  
Meral Yılmaz ◽  
Turgay Tay ◽  
Ayşen Özdemir Türk ◽  
Merih Kıvanç

The antimicrobial activity and the MIC values of the ethanol, chloroform, diethyl ether, and acetone extracts of the chemical races of Pseudevernia furfuracea (var. furfuracea and var. ceratea) and their physodic acid, chloroatranorin, atranorin, and olivetoric acid constituents have been investigated against some microorganisms. Nearly all extracts of both chemical races showed antimicrobial activity against Aeromonas hydrophila, Bacillus cereus, Bacillus subtilis, Listeria monocytogenes, Proteus vulgaris, Staphylococcus aureus, Streptococcus faecalis, Yersinia enterocolitica, Candida albicans, Candida glabrata, Alternaria alternata, Ascochyta rabiei, Aspergillus niger, Fusarium culmorum, Fusarium moniliforme, Fusarium oxysporum, Fusarium solani, and Penicillium notatum. There was no antimicrobial activity of the extracts against Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Pseudomonas syringae, Salmonella typhimurium, Alternaria citri, Alternaria tenuissima, and Gaeumannomyces graminis. Chloroatranorin and olivetoric acid were active against the same microorganisms with few exceptions. Physodic acid was active against about the same bacteria and yeasts and inactive against all of the filamentous fungi tested. Also no activity of atranorin against the filamentous fungi was observed.


2016 ◽  
Vol 11 (1) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Mohammed Gherib ◽  
Chahrazed Bekhechi ◽  
Fewzia Atik Bekkara ◽  
Ange Bighelli ◽  
Joseph Casanova ◽  
...  

One oil sample isolated from aerial parts of Pulicaria mauritanica Coss. from Western Algeria has been analyzed by GC(RI), GC-MS and 13C NMR. In total, 21 components, accounting for 97.0% of the oil, were identified. Then, 36 oil samples coming from plants harvested at two flowering periods in three locations were analyzed by GC(RI) and 13C NMR. Although all the oil samples exhibited similar composition, dominated by carvotanacetone (89.2–96.1%), the yield of essential oil varied drastically from sample to sample (0.35–1.44%), depending on the location of harvest. The essential oil displayed moderate antimicrobial effect against bacteria, yeast and filamentous fungi (MIC = 2–4 μL/mL).


2013 ◽  
Vol 168 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Eric Pereira ◽  
Ana Santos ◽  
Francisca Reis ◽  
Rui M. Tavares ◽  
Paula Baptista ◽  
...  

2017 ◽  
Vol 124 (1) ◽  
pp. 126-135 ◽  
Author(s):  
R.D. Pacheco-Cano ◽  
R. Salcedo-Hernández ◽  
J.E. López-Meza ◽  
D.K. Bideshi ◽  
J.E. Barboza-Corona

2002 ◽  
Vol 49 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Sally N Jewell ◽  
Robert H Waldo ◽  
Cody C Cain ◽  
Joseph O Falkinham

2012 ◽  
Vol 2 (1) ◽  
pp. 11591 ◽  
Author(s):  
K. Stefan Svahn ◽  
Ulf Göransson ◽  
Hesham El-Seedi ◽  
Lars Bohlin ◽  
D.G. Joakim Larsson ◽  
...  

2012 ◽  
Vol 1 (2) ◽  
pp. 211 ◽  
Author(s):  
Patricia Larrañaga ◽  
Paola Díaz-Dellavalle ◽  
Andrea Cabrera ◽  
Diego Alem ◽  
Carolina Leoni ◽  
...  

<p>The search for environmentally biocompatible and cost-effective methods to control filamentous fungi in agriculture is becoming increasingly urgent. <em>In vitro</em> antimicrobial activity of three synthetic peptides was investigated against some filamentous fungi with agricultural relevance. The peptides were an analog of Temporin called Temporizina, a fragment from Pleurocidin termed Plc-2, and a peptide identified from sesame seeds named Pses3. Antimicrobial activity of these peptides towards filamentous fungi has not been previously reported. Seven plant pathogenic or mycotoxigenic fungal species, isolated from plant tissues were assayed: <em>Alternaria</em> <em>solani</em>, <em>Colletotrichum</em> <em>gloesporioides</em>, <em>Fulvia </em><em>fulvum</em>, <em>Fusarium oxisporum</em>, <em>Aspergillus niger</em>, <em>A. ochraceus</em> and <em>Penicillium digitatum</em>. Values of Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration (MFC) were determined and compared with the commercially available fungicide Captan as a positive control. The peptides showing greatest inhibition were Pses3 and Plc-2 and <em>C. gloesporioides </em>was the most sensitive of the evaluated fungi. The MIC<sub> </sub>values for Plc-2 and Pses3 peptides ranged from 0.64 µM to 10.25 µM. These values were much lower than those observed for Captan, suggesting the potential of these peptides as fungicides. In particular, Pses3 is a novel peptide derived from sesame seeds not reported in databases.</p>


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