Antimicrobial activity of three plant species against multi-drug resistant E. coli causing urinary tract infection

Jafarzadeh, Mohammad Mehdi; Moghaddam, Mohammad Javad Mehdipour; Bakhshi, Davood

doi:10.1016/j.hermed.2020.100352

Cited by 10 publications

(10 citation statements)

References 31 publications

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“…The highest bactericidal activity was also attributed to ethanolic extract from M. chamomilla, as well as the ethanolic extract from S. marianum (MBC = 1.11 μg/mL). Jafarzadeh et al (2020) concluded that the ethanolic extract from M. chamomilla could substitute 18 studied antibiotics except for meropenem and piperacillin. It should be considered that after studying the chemical profile of the extracts, the authors assigned this bioactivity to some of the identified compounds such as flavonoids (e.g.…”

Section: Compoundsmentioning

confidence: 99%

Chemical characterization of carob seeds (Ceratonia siliqua L.) and use of different extraction techniques to promote its bioactivity

Ayache

Reis²,

Días³

et al. 2021

Food Chemistry

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Section: Compoundsmentioning

confidence: 99%

Chemical characterization of carob seeds (Ceratonia siliqua L.) and use of different extraction techniques to promote its bioactivity

Ayache

Reis²,

Días³

et al. 2021

Food Chemistry

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“…A detailed description of preparing the bacterial strains and the formation of P. aeruginosa and E. coli biofilms is mentioned in our previous studies 2 , 6 , 37 . In short, two bacterial strains including P. aeruginosa ATCC 27853 and E. coli ATCC 8739 were used.…”

Section: Methodsmentioning

confidence: 99%

Antimicrobial activity of cold atmospheric-pressure argon plasma combined with chicory (Cichorium intybus L.) extract against P. aeruginosa and E. coli biofilms

Shabani

Dezhpour

Jafari

et al. 2023

Sci Rep

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The present study reports a significant combined antibacterial activity of Cichorium intybus L. (known as Chicory) natural extract with cold atmospheric-pressure argon plasma treatment against multi-drug resistant (MDR) Gram-negative bacteria. To detect reactive species that are generated in the argon plasma, optical emission spectra were recorded. The molecular bands were allocated to the hydroxyl radicals (OH) and neutral nitrogen molecules (N2). Moreover, the atomic lines form the emitted spectra were determined to argon atoms (Ar) and the oxygen atoms (O), respectively. The results revealed that Chicory extract treatment at a concentration of 0.043 g/ml reduced the metabolic activity of P. aeruginosa cells by 42%, while, a reduced metabolic activity of 50.6% was found for E. coli biofilms. Moreover, the combination of Chicory extract with 3 min Ar-plasma introduced a synergistic effect, so that it exhibited a significantly reduced metabolic activity of P. aeruginosa to 84.1%, and E. coli ones to 86.7%, respectively. The relationship between cell viability and membrane integrity of P. aeruginosa and E. coli biofilms treated with Chicory extract and argon plasma jet were also analyzed by CLSM. It was found that after the combined treatment, a noticeable membrane disruption was formed. Besides, it was concluded that E. coli biofilms showed a higher sensitivity to Ar-plasma than P. aeruginosa biofilm at longer plasma exposure times. This study suggests that the anti-biofilm therapy based on a combined effect of Chicory extract and cold argon plasma treatment can serve as a considerable green method for treatment of antimicrobial MDR bacteria.

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“…Recent antimicrobial activity studies on M. chamomilla mainly performed with its' extracts which obtained by using various solvents and extraction techniques or essential oil of the plant. Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, Bacillus cereus and Salmonella typhi bacterial strains and Candida albicans, Aspergillus flavus and Aspergillus niger fungal strains were the most common strains in these studies (7,8,(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31).…”

Section: Introductionmentioning

confidence: 91%

Pharmacopoeia Researches and Antimicrobial Activity Studies on Matricaria chamomilla L.

Özdemir

Selçuk

Kara

et al. 2021

Clinical and Experimental Health Sciences

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Objective:The aim of this study is to compare Matricaria chamomilla samples collected from nature and supplied from pharmacies and herbalists by performing quality control analyses and investigate the antimicrobial activities of them.Methods: These samples were examined according to Matricariae flos monograph analysis in European Pharmacopoeia. Macroscopic and microscopic examination, loss on drying and total ash experiment were performed. Essential oil was obtained from the drugs and analyzed by thin layer chromatography. Additionally, aqueous and ethanolic extracts of all samples were compared by thin layer chromatography. Antimicrobial activity was determined by microdilution method in aqueous and ethanolic extracts.Results: According to the pharmacopoeia analysis; in macroscopic and microscopic examinations, all samples except 2 herbalist samples were found to suitable for the pharmacopoeia standards. In loss on drying, none of the samples were found to suitable for the standards except 2 herbalist samples. In total ash, all samples were suitable for the standards. While the essential oil of M. chamomilla samples collected from nature was yellow-orange colored, we obtained the blue essential oil containing chamazulene from pharmacy samples and 3 of herbalist samples. The highest activity in antimicrobial activity assay was observed in ethanol extracts against Staphylococcus aureus, Staphylococcus epidermidis and Candida tropicalis strains. Conclusion:Examples of true M. chamomilla were found among herbalist samples, contrary to the previous studies. Pharmacy samples were qualified but limited in terms of variety. Essential oil analyses pointed out the importance of geographical location among natural samples. Antimicrobial activity tests did not provide significant results.

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Antimicrobial activity of three plant species against multi-drug resistant E. coli causing urinary tract infection

Cited by 10 publications

References 31 publications

Chemical characterization of carob seeds (Ceratonia siliqua L.) and use of different extraction techniques to promote its bioactivity

Chemical characterization of carob seeds (Ceratonia siliqua L.) and use of different extraction techniques to promote its bioactivity

Antimicrobial activity of cold atmospheric-pressure argon plasma combined with chicory (Cichorium intybus L.) extract against P. aeruginosa and E. coli biofilms

Pharmacopoeia Researches and Antimicrobial Activity Studies on Matricaria chamomilla L.

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