Abstract
The aim of this study was to analyze the chemical composition and biological and antibiofilm activity of the essential oil (EO) of Thymus serpyllum with the use of a MALDI-TOF MS Biotyper. The main compounds of the EO were thymol, 18.8%; carvacrol, 17.4%; o-cymene, 15.4%; and geraniol, 10.7%. It was found that free-radical scavenging activity was high. The highest antimicrobial activity was observed against Pseudomonas aeruginosa, Salmonella enteritidis, and biofilm-forming bacteria. The changes in the biofilm structure after T. serpyllum EO application confirmed the inhibitory action and the most pronounced effect was observed on Bacillus subtilis biofilm. The antifungal activity of the vapor phase was the most effective against Penicillium crustosum. T. serpyllum should be a suitable alternative to synthetic antioxidants as well as antimicrobials. The EO of T. serpyllum can be used in the vapor phase in the storage of root vegetables as well as a growth inhibitor of Penicillium on bread.
Highlights
Introduction published maps and institutional affilThymus serpyllum or wild thyme of the family Lamiaceae is an aromatic flowering plant which contains high amounts of essential oils (EOs) rich in polyphenolic compounds—phenolic acids or flavonoids
Gas chromatography/mass spectrometry (GC/MS) and gas chromatography (GCFID) of T. serpyllum EO was used for detection and the major compounds were found to be thymol, 18.8%; carvacrol, 17.4%; o-cymene, 15.4%; and geraniol, 10.7% (Table 1)
The MALDI-TOF MS Biotyper used for the first time in analyses of a biofilm formed by
Summary
Introduction published maps and institutional affilThymus serpyllum or wild thyme of the family Lamiaceae is an aromatic flowering plant which contains high amounts of essential oils (EOs) rich in polyphenolic compounds—phenolic acids or flavonoids. Thymus serpyllum or wild thyme of the family Lamiaceae is an aromatic flowering plant which contains high amounts of essential oils (EOs) rich in polyphenolic compounds—. EOs are biologically active substances with polyphenolic compounds which exhibit high radical scavenging potential and anti-inflammatory activity [1]. These properties are used in the pharmaceutical industry for pharmaceutical preparations such as antihypertensive, anti-inflammatory, antiproliferative, and anticancer medicines. EOs are known to exhibit this effect on the growth and development of the microorganisms and this is especially important in the prevention of contamination with spoilage and pathogenic microorganisms. T. serpyllum EO exhibits a strong inhibitory effect on the growth of Gram-positive iations
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