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Updated: Mar 19, 2026

Measuring Volatile and Non-volatile Antifungal Activity of Biocontrol Products
Published on: December 5, 2020
Anti-fungal potential of ozone against some dermatophytes
Salama A Ouf1, Tarek A Moussa1, Alshimaa M Abd-Elmegeed2
1Botany and Microbiology Department, Faculty of Science, Cairo University, Giza, Egypt.
Abstract:
Dermatophytes are classified in three genera, Epidermophyton, Microsporum and Trichophyton. They have the capacity to invade keratinized tissue to produce a cutaneous infection known as dermatophytoses. This investigation was performed to study the effect of gaseous ozone and ozonized oil on three specific properties of six different dermatophytes. These properties included sporulation, mycelia leakage of sugar and nutrients and the activity of their hydrolytic enzymes. Generally, ozonized oil was found to be more efficacious than gaseous ozone. Microsporum gypseum and Microsporum canis were the most susceptible, while Trichophyton interdigitale and T. mentagrophytes were relatively resistant. The study revealed a steady decline in spore production of M. gypseum and M. canis on application of ozonated oil. An increase in leakage of electrolytes and sugar was noticed after treatment with ozonized oil in the case of M. gypseum, M. canis, T. interdigitale, T. mentagrophytes and T. rubrum. The results also revealed loss in urease, amylase, alkaline phosphatase, lipase and keratinase enzyme producing capacity of the investigated fungi.
Insights
Ozonized oil effectively inhibited dermatophyte growth and enzyme activity, outperforming gaseous ozone. This study highlights ozonized oil as a potent agent against common fungal skin infections.
Area of Science:
- Mycology
- Dermatology
- Ozone Therapy
Background:
- Dermatophytes cause superficial fungal infections (dermatophytoses) by invading keratinized tissues.
- Understanding their biological properties is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the impact of gaseous ozone and ozonized oil on key properties of six dermatophyte species.
- To compare the efficacy of gaseous ozone versus ozonized oil against dermatophytes.
Main Methods:
- Exposure of dermatophytes to gaseous ozone and ozonized oil.
- Assessment of fungal sporulation, mycelial nutrient leakage, and hydrolytic enzyme activity.
- Comparative analysis of treatment effects on different dermatophyte genera (Epidermophyton, Microsporum, Trichophyton).
Main Results:
- Ozonized oil demonstrated greater efficacy than gaseous ozone against dermatophytes.
- Microsporum gypseum and Microsporum canis showed higher susceptibility to ozonized oil.
- Ozonized oil treatment led to reduced sporulation, increased electrolyte/sugar leakage, and diminished enzyme activity (urease, amylase, phosphatase, lipase, keratinase).
Conclusions:
- Ozonized oil is a promising therapeutic agent for dermatophytoses.
- The antifungal mechanism involves disruption of cell integrity and inhibition of essential enzymes.
- Differential susceptibility among dermatophyte species warrants further investigation for targeted therapies.
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