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Grapefruit essential oils inhibit quorum sensing of Pseudomonas aeruginosa.
- Source :
-
Food science and technology international = Ciencia y tecnologia de los alimentos internacional [Food Sci Technol Int] 2020 Apr; Vol. 26 (3), pp. 231-241. Date of Electronic Publication: 2019 Nov 05. - Publication Year :
- 2020
-
Abstract
- Citrus essential oils are used in food to confer flavor and aromas. The citrus essential oils have been granted as GRAS and could be used as antimicrobial additives to control bacterial quorum sensing from potential food bacterial pathogens. The chemical composition and inhibitory activity of Citrus paradisi (grapefruit) essential oils obtained by cold-pressed method (EOP) and cold-pressed method followed by steam distillation, against Pseudomonas aeruginosa were determined . The GC-MS analyses of the oil indicated the amount of the essential oil components was highest with D-limonene in both cases. However, the extraction method modified the chemical composition. EOP had higher amount of coumarins and flavonoid as well as less oxygenated terpenoids. At 0.1 mg/mL essential oils were not able to modify the bacterial development but inhibited the P. aeruginosa biofilm production between 52% and 55%, sessile viability between 45% and 48%, autoinducer production and elastase activity between 30% and 56%. Limonene was less effective at inhibiting P. aeruginosa than the essential oils, suggesting a synergistic effect of the minor components. According to our results, grapefruit essential oils could be used as a food preservative to control P. aeruginosa virulence.
- Subjects :
- Biofilms drug effects
Coumarins analysis
Coumarins pharmacology
Flavonoids analysis
Flavonoids pharmacology
Food Preservation methods
Food Preservatives analysis
Humans
Limonene analysis
Limonene pharmacology
Oils, Volatile chemistry
Plant Extracts chemistry
Pseudomonas aeruginosa physiology
Terpenes analysis
Terpenes pharmacology
Citrus paradisi chemistry
Food Microbiology
Food Preservatives pharmacology
Oils, Volatile pharmacology
Plant Extracts pharmacology
Pseudomonas aeruginosa drug effects
Quorum Sensing drug effects
Subjects
Details
- Language :
- English
- ISSN :
- 1532-1738
- Volume :
- 26
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Food science and technology international = Ciencia y tecnologia de los alimentos internacional
- Publication Type :
- Academic Journal
- Accession number :
- 31684768
- Full Text :
- https://doi.org/10.1177/1082013219883465