Vapour-phase-mediated antimicrobial activity

The vapour-phase-mediated antimicrobial activity (VMAA) is the inhibitory or cidal antimicrobial activity of a molecule in a liquid culture, following its initial evaporation and migration via the vapour-phase^[1] Two new in vitro assays i.e. the vapour-phase-mediated patch assay^[2] and the vapour-phase-mediated susceptibility assay^[1] were developed to detect and quantify the VMAA. Both assays belong to the newest class of vaporisation assays i.e. the broth microdilution derived vaporisation assays. In contrast, most other vaporisation assays belong to the class of agar disk diffusion derived vaporisation assays and quantify the antimicrobial activity of the vapour-phase itself.^[3] Both classes of vaporisation assays are useful and measure different aspects of the antimicrobial capacity of molecules.

Applications

Possible applications for volatiles like volatile organic compounds with VMAA are: maintaining hygiene in hospitals, treating post-harvest contamination, protecting crops against pathogens and pests, and treating infections of the digestive, vaginal or respiratory tract.^[4]

References

^ ^a ^b Feyaerts AF, Mathé L, Luyten W, De Graeve S, Van Dyck K, Broekx L, Van Dijck P (March 2018). "Essential oils and their components are a class of antifungals with potent vapour-phase-mediated anti-Candida activity". Scientific Reports. 8 (1): 3958. doi:10.1038/s41598-018-22395-6. PMC 5834617. PMID 29500393.
^ Feyaerts AF, Mathé L, Luyten W, Tournu H, Van Dyck K, Broekx L, Van Dijck P (2017-09-01). "Assay and recommendations for the detection of vapour-phase-mediated antimicrobial activities". Flavour and Fragrance Journal. 32 (5): 347–353. doi:10.1002/ffj.3400. ISSN 1099-1026.
^ Bueno J (2015). "Models of evaluation of antimicrobial activity of essential oils in vapour phase: a promising use in healthcare decontamination". Natural Volatiles & Essential Oils. 2 (2). ISSN 2148-9637.
^ "Plant-derived volatiles may serve as future antifungals". Phys.org. March 9, 2018. Retrieved 2018-03-10.

[Feyaerts_2018-1] Feyaerts AF, Mathé L, Luyten W, De Graeve S, Van Dyck K, Broekx L, Van Dijck P (March 2018). "Essential oils and their components are a class of antifungals with potent vapour-phase-mediated anti-Candida activity". Scientific Reports. 8 (1): 3958. doi:10.1038/s41598-018-22395-6. PMC 5834617. PMID 29500393.

[2] Feyaerts AF, Mathé L, Luyten W, Tournu H, Van Dyck K, Broekx L, Van Dijck P (2017-09-01). "Assay and recommendations for the detection of vapour-phase-mediated antimicrobial activities". Flavour and Fragrance Journal. 32 (5): 347–353. doi:10.1002/ffj.3400. ISSN 1099-1026.

[3] Bueno J (2015). "Models of evaluation of antimicrobial activity of essential oils in vapour phase: a promising use in healthcare decontamination". Natural Volatiles & Essential Oils. 2 (2). ISSN 2148-9637.

[4] "Plant-derived volatiles may serve as future antifungals". Phys.org. March 9, 2018. Retrieved 2018-03-10.

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