Essential Oils and Their Antifungal Applications
Summary
Essential oils are complex mixtures of volatile, plant-derived compounds that have been utilised for centuries in medicine, agriculture and preservation. Rich in monoterpenes, sesquiterpenes and phenolic constituents, these natural extracts exhibit a broad spectrum of antifungal activity against yeasts, moulds and filamentous fungi. Their mechanisms of action commonly involve disruption of cell membranes, interference with ergosterol biosynthesis and inhibition of biofilm formation. Recent emphasis has fallen on overcoming antimicrobial resistance by combining essential oils with conventional drugs or by developing novel delivery systems such as cyclodextrin inclusion complexes, micro-emulgels and encapsulated formulations. Globally, rising rates of invasive and superficial mycoses, coupled with the toxicity and limited availability of existing antifungal agents, have driven research into plant-based alternatives. Practical applications span topical treatments for dermatophytoses, oral and vaginal candidiasis, preservation of agricultural produce and environmental disinfection. While in vitro studies frequently report low minimum inhibitory concentrations and synergistic effects with azoles or polyenes, in vivo validation and standardisation of oil composition remain challenges. Continued interdisciplinary efforts aim to translate laboratory findings into safe, effective and sustainable antifungal therapies.
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Essential Oils and Their Antifungal Applications publication trend
The graph below shows the total number of articles in essential oils and their antifungal applications across all publications each year (not limited to Nature Index journals).
Technical terms
Essential oil: A concentrated hydrophobic liquid containing volatile plant metabolites, used for antimicrobial applications.
Monoterpene: A class of terpenes consisting of two isoprene units, often responsible for antimicrobial properties.
Biofilm: A structured community of microbial cells embedded in an extracellular matrix, enhancing resistance to treatments.
Ergosterol: A key fungal membrane sterol whose disruption impairs cell integrity and viability.
Cyclodextrin: A cyclic oligosaccharide used to encapsulate hydrophobic compounds and enhance their solubility and stability.
References
- Thymus vulgaris Essential Oil in Beta-Cyclodextrin for Solid-State Pharmaceutical Applications. Pharmaceutics (2023).
- Anticandidal effects and chemical compositions of volatile oils extracted from Origanum syriacum, Clinopodium serpyllifolium subsp. fruticosum and Thymbra capitata from Palestine. Chemical and Biological Technologies in Agriculture (2023).
- Antifungal Properties of Essential Oils and Their Compounds for Application in Skin Fungal Infections: Conventional and Nonconventional Approaches. Molecules (2021).
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