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4 results on '"Puškárová A"'

1. Protection and Disinfection Activities of Oregano and Thyme Essential Oils Encapsulated in Poly(ε-caprolactone) Nanocapsules

Author

Monika Hofbauerová, Magdaléna Rusková, Andrea Puškárová, Mária Bučková, Adriana Annušová, Eva Majková, Peter Šiffalovič, Giuseppe Granata, Edoardo Napoli, Corrada Geraci, and Domenico Pangallo

Subjects
essential oils, poly(ε-caprolactone) nanocapsules, antimicrobial effect, reflectivity ratio, disinfection, environmental biofilm, Organic chemistry, QD241-441
Abstract

The biocolonization of building materials by microorganisms is one of the main causes of their degradation. Fungi and bacteria products can have an undesirable impact on human health. The protection and disinfection of sandstone and wood materials are of great interest. In this study, we evaluated the protection and disinfection activity of oregano and thyme essential oils encapsulated in poly(ε-caprolactone) nanocapsules (Or-NCs, Th-NCs) against four types of environmental microorganisms: Pleurotus eryngii, Purpureocillium lilacinum (fungal strains), Pseudomonas vancouverensis, and Flavobacterium sp. (bacterial strains). The surfaces of sandstone and whitewood samples were inoculated with these microorganisms before or after applying Or-NCs and Th-NCs. The concentration-dependent effect of Or-NCs and Th-NCs on biofilm viability was determined by the MTT reduction assay. The results showed that Or-NCs and Th-NCs possess effective disinfection and anti-biofilm activity. Diffuse reflectivity measurements revealed no visible color changes of the materials after the application of the nanoencapsulated essential oils.

Published
2023
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2. Protection and Disinfection Activities of Oregano and Thyme Essential Oils Encapsulated in Poly(ε-caprolactone) Nanocapsules

Author

Hofbauerová, Monika, primary, Rusková, Magdaléna, additional, Puškárová, Andrea, additional, Bučková, Mária, additional, Annušová, Adriana, additional, Majková, Eva, additional, Šiffalovič, Peter, additional, Granata, Giuseppe, additional, Napoli, Edoardo, additional, Geraci, Corrada, additional, and Pangallo, Domenico, additional

Published
2023
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3. The Effect of Ten Essential Oils on Several Cutaneous Drug-Resistant Microorganisms and Their Cyto/Genotoxic and Antioxidant Properties

Author

Katarína Kozics, Viktória Kalászová, Mária Bučková, Domenico Pangallo, Terézia Cabicarová, and Andrea Puškárová

Subjects
Antioxidant, Candida parapsilosis, medicine.medical_treatment, Proteus vulgaris, human keratinocytes HaCaT, Pharmaceutical Science, Analytical Chemistry, law.invention, Thuja, law, Cassia, Origanum, Drug Discovery, Candida albicans, Skin Diseases, Infectious, 0303 health sciences, biology, Traditional medicine, Chemistry, Antimicrobial, Klebsiella pneumoniae, Chemistry (miscellaneous), Pseudomonas aeruginosa, Molecular Medicine, Citrobacter koseri, multi-drug-resistant bacteria, total antioxidant status, Microbial Sensitivity Tests, Article, drug-resistant Candida, Cell Line, Thymus Plant, 03 medical and health sciences, Drug Resistance, Fungal, Drug Resistance, Bacterial, medicine, Oils, Volatile, Humans, Plant Oils, Physical and Theoretical Chemistry, Cymbopogon, essential oils, Essential oil, 030304 developmental biology, 030306 microbiology, Organic Chemistry, biology.organism_classification, HaCaT, cyto/genotoxic effects
Abstract

In this study, we determined the antimicrobial activity of ten essential oils (EOs)&mdash, oregano, thyme, clove, arborvitae, cassia, lemongrass, melaleuca, eucalyptus, lavender, and clary sage&mdash, against drug-resistant microorganisms previously isolated from patients with skin infections. The essential oil compositions were determined using gas chromatography coupled to mass spectrometry (GC/MS). The assayed bacteria included Pseudomonas aeruginosa, Proteus vulgaris, Citrobacter koseri, and Klebsiella pneumoniae. Two drug-resistant yeasts (Candida albicans and Candida parapsilosis) were also involved in our survey. Oregano, thyme, cassia, lemongrass and arborvitae showed very strong antibacterial and antifungal activity against all tested strains. These results show that these essential oils may be effective in preventing the growth of the drug-resistant microorganisms responsible for wound infections. In this study, the genotoxic effects of tested essential oils on healthy human keratinocytes HaCaT were evaluated using the comet assay for the first time. These results revealed that none of the essential oils induced significant DNA damage in vitro after 24 h. Moreover, the treatment of HaCaT cells with essential oils increased the total antioxidant status (TAS) level. The obtained results indicate that EOs could be used as a potential source of safe and potent natural antimicrobial and antioxidant agents in the pharmaceutical and food industries.

Published
2019
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