Empirical prediction and validation of antibacterial inhibitory effects of various plant essential oils on common pathogenic bacteria

Evrendilek, Gülsün Akdemir

doi:10.1016/j.ijfoodmicro.2015.02.030

Cited by 69 publications

(49 citation statements)

References 35 publications

(31 reference statements)

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“…Regarding the essential oil from M. piperita, the princpal constituents were carvone (84.34%) and limonene (10.97%). Recent studies verified the presence of 18 compounds in the essential oil from M. piperita, and the principal components were pulegone (45.00%) followed by iso-menthol (12.80%), piperitanona (9.10%), menthone (8.00%), piperitone (7.40%) and piperitanone oxide (6.90%) [17]. Their data are different from those found in this work.…”

Section: Resultscontrasting

confidence: 85%

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Characterization of the Biological Potential of the Essential Oils from Five Species of Medicinal Plants

Rezende¹,

Souza²,

Magalhães³

et al. 2017

AJPS

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Essential oils from Mentha piperita, Cymbopogon citratus, Rosmarinus officinalis, Peumus boldus and Foeniculum vulgare were extracted by hydrodistillation, chemically characterized and quantified by GC/MS and GC/FID. The principal componentes in the essential oil of M. piperita (carvone and limonene), C. citratus (geranial, neral and myrcene), R. officinalis (1,8-cineole, camphor and α-pinene), P. boldus (α-terpinyl formate, p-cymene and 1,8-cineole) and F. vulgare (methyl chavicol, limonene and fenchone) were identified. The oils were tested for antioxidant activity employing the DPPH (2,2-diphenyl-1-picryl-hydrazyl) radical-capture method, the oxidation of the β-carotene/linoleic acid system, and the ABTS radical-capture method. The essential oils were not effective. The antioxidant activities of the oils were determined by the hydroxyl method, and the highest activity (62.80%) was observed with the essential oil from M. piperita. Activities of 1.54 and 1.82 μg μg −1 , respectively, were observed for the essential oils from C. citratus and P. Boldus using the phosphomolybdenum method. No activity was observed with respect to reducing power. The essential oil from C. citratus was effective in inhibiting the growth of L. monocytogenes ( How to cite this paper: Rezende,

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Section: Resultscontrasting

confidence: 85%

“…In recent studies by Evrendilek [17] of the essential oil from F. vulgare extracted from fennel seeds acquired in Hatay markets (Turkey), seven compounds were found; the principal component was trans-anethole (80.4%). These results are different from those found in the present work where no trans-anethole was found.…”

Section: Resultsmentioning

confidence: 99%

Characterization of the Biological Potential of the Essential Oils from Five Species of Medicinal Plants

Rezende¹,

Souza²,

Magalhães³

et al. 2017

AJPS

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“…Extracts combined with Litsea glaucescens Kunth and Tagetes lucida Cav showed the same antibacterial activity against B. subtilis and E. coli, that combined with barley straw, but were less active against S. epidermidis, which contrasts with the results reported in experiments using oils obtained from such plants, which showed a higher zone of inhibition (25.4 mm) for Gram-positive and Gram-negative bacteria (Dadalioglu & Evrendilek, 2004;Shirazi et al, 2014;Evrendilek, 2015). Spent substrate Pleurotus ostreatus extracts did not inhibit S. epidermidis growth; but a concentration of 100 mg mL -1 , showed antibacterial activity against E. coli and B. subtilis, with a zone of inhibition of 14.17 mm and 15.00 mm, respectively, which contrasts with previous reports where the extract of the plant, which showed a zone of inhibition of 8 mm for E. coli and no effect against B. subtilis (Mathlouthi et al, 2012).…”

Section: Discussioncontrasting

confidence: 73%

Antibacterial Activity of Spent Substrate of Mushroom Pleurotus ostreatus Enriched with Herbs

Ayala-Martínez¹,

Ramírez²,

Soto-Simental³

et al. 2015

JAS

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The recurrent use of antibiotics has given the guideline so that bacteria will develop resistance to drugs used in medicine, which is why recent investigations have been directed to evaluate natural sources such as plants or fungi, which can fight the bacteria. Here the antibacterial activity of spent substrate of Pleurotus ostreatus combined with medicinal plants was evaluated. We designed six mixtures (barley straw, barley straw/Chenopodium ambrosioides L., barley straw/Mentha piperita L., barley straw/Rosmarinus officinalis L., barley straw/Litsea glaucescens Kunth and barley straw/Tagetes lucid Cav) to be used as a substrate of cultivation of mushroom. These were recovered after the harvest. We obtained aqueous extracts from spent substrates and resuspended them to different concentrations (25, 50 and 100 mg mL -1 ). These were tested for antibacterial activity against Staphylococcus epidermidis, Bacillus subtilis and Escherichia coli; as a positive control we used azithromycin, cephalexin and dicloxacillin. The protocol was a completely randomized assay with a factorial arrangement design. The data were analyzed with PROC GLM, SAS. The spent substrate from Pleurotus ostreatus that contained Mentha piperita L. presented the largest zone of inhibition against Staphylococcus epidermidis (40.00 mm) which was similar to control antibiotics (40.00 mm). Second in toxicity was the spent substrate from barley straw extract (33.33 mm). In conclusion, the results suggest that it is possible to use the spent substrate of Pleurotus ostreatus as source of extracts with antibacterial activity, being the best option the combination of barley straw with Mentha piperita L.

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“…Antibacterial properties of hop compounds are well known and have been applied in beer production since 11th century, in particular against beer spoiling bacterial strains . Since then, antibacterial activities against other bacteria, activities against some viruses, fungi and protozoa have been reported . For example, in his 2015 study, Evrendilek described an effect of hop essential oil on pathogenic bacteria such as Yersinia enterocolitica , Salmonella enteritidis and S. typhimurium , Proteus mirabilis , Escherichia coli O157:H7 and Klebsiella oxytoca .…”

mentioning

confidence: 99%

Strong antimicrobial activity of xanthohumol and other derivatives from hops (Humulus lupulus L.) on gut anaerobic bacteria

Čermák

Olšovská

Mikyška

et al. 2017

APMIS

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Strong antimicrobial activity of xanthohumol and other derivatives from hops (Humulus lupulus L.) on gut anaerobic bacteria. APMIS 2017; 125: 1033-1038.Anaerobic bacteria, such as Bacteroides fragilis or Clostridium perfringens, are part of indigenous human flora. However, Clostridium difficile represents also an important causative agent of nosocomial infectious antibiotic-associated diarrhoea. Treatment of C. difficile infection is problematic, making it imperative to search for new compounds with antimicrobial properties. Hops (Humulus lupulus L.) contain substances with antibacterial properties. We tested antimicrobial activity of purified hop constituents humulone, lupulone and xanthohumol against anaerobic bacteria. The antimicrobial activity was established against B. fragilis, C. perfringens and C. difficile strains according to standard testing protocols (CLSI, EUCAST), and the minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBC) were calculated. All C. difficile strains were toxigenic and clinically relevant, as they were isolated from patients with diarrhoea. Strongest antimicrobial effects were observed with xanthohumol showing MIC and MBC values of 15-107 lg/mL, which are close to those of conventional antibiotics in the strains of bacteria with increased resistance. Slightly higher MIC and MBC values were obtained with lupulone followed by higher values of humulone.Our study, thus, shows a potential of purified hop compounds, especially xanthohumol, as alternatives for treatment of infections caused by select anaerobic bacteria, namely nosocomial diarrhoea caused by resistant strains.

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Empirical prediction and validation of antibacterial inhibitory effects of various plant essential oils on common pathogenic bacteria

Cited by 69 publications

References 35 publications

Characterization of the Biological Potential of the Essential Oils from Five Species of Medicinal Plants

Characterization of the Biological Potential of the Essential Oils from Five Species of Medicinal Plants

Antibacterial Activity of Spent Substrate of Mushroom Pleurotus ostreatus Enriched with Herbs

Strong antimicrobial activity of xanthohumol and other derivatives from hops (Humulus lupulus L.) on gut anaerobic bacteria

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