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In vitro antimicrobial effect of various commercial essential oils and their chemical constituents on Aeromonas salmonicida subsp. salmonicida
- Source :
- Journal of Applied Microbiology, Journal of Applied Microbiology, Wiley, 2020, 129 (1), pp.137-145. ⟨10.1111/jam.14622⟩
- Publication Year :
- 2020
-
Abstract
- International audience; AimsThis study aimed to evaluate in vitro efficacy of essential oils (EOs) and their compounds (EOCs) alone or in combination against Aeromonas salmonicida subsp. salmonicida, the causative agent of furunculosis in salmonid fish.Methods and ResultsAntimicrobial activity of 13 EOs and 16 EOCs was investigated for four A. salmonicida subsp. salmonicida strains using broth microdilution. The checkerboard assay was used to evaluate a putative synergy between the most efficient EOs and EOCs against the tested strains. Cinnamon bark, oregano, clove, and thyme oils and their major compounds cinnamaldehyde, eugenol, carvacrol and thymol showed the lower minimum inhibitory concentration and minimum bactericidal concentration values. The association of cinnamaldehyde and eugenol (V/V: 30%/70%) showed a synergistic activity against three tested strains. The combinations of cinnamon with oregano, clove or thyme EOs showed a neutral or additive activity against all the tested strains.ConclusionsCinnamon, oregano, clove and thyme oils and their major phytochemical compounds showed strong activities against A. salmonicida subsp. salmonicida strains.Significance and Impact of the StudyTo reduce the use of antibiotics in aquaculture, phytochemicals such as cinnamaldehyde and eugenol can be tested alone or in combination in in vivo studies as functional feed alternatives.
- Subjects :
- [SDV]Life Sciences [q-bio]
animal diseases
Resistance
Phytochemicals
Diseases
Aquaculture
Aeromonas salmonicida
Microbial Sensitivity Tests
Applied Microbiology and Biotechnology
Cinnamaldehyde
03 medical and health sciences
chemistry.chemical_compound
Minimum inhibitory concentration
Aeromonas salmonicida subsp. salmonicida
Fish (live)
Oils, Volatile
Animals
Plant Oils
Carvacrol
Food science
Thymol
030304 developmental biology
0303 health sciences
Minimum bactericidal concentration
biology
Antimicrobials
030306 microbiology
Furunculosis
Drug Synergism
General Medicine
Antimicrobial
biology.organism_classification
Anti-Bacterial Agents
Eugenol
chemistry
Essential oils
Salmonidae
Biotechnology
Subjects
Details
- ISSN :
- 13652672 and 13645072
- Volume :
- 129
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Journal of applied microbiologyReferences
- Accession number :
- edsair.doi.dedup.....53b563116e3e3957d8a55b3c00cfff40