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Decontamination of raw foods using ozone-based sanitization techniques.
Jennifer J Perry1, Ahmed E Yousef
1Department of Food Science and Technology, The Ohio State University, Columbus, Ohio, USA. perry.1723@osu.edu
Ozone is a versatile sanitizer for decontaminating fresh produce and dry nuts, enhancing food safety and shelf life. Careful control of ozone application is crucial to avoid adverse effects on product quality and ensure worker safety.
Area of Science:
- Food Science
- Microbiology
- Food Safety
Background:
- Fresh produce and dry nuts are frequently linked to foodborne illness outbreaks.
- Conventional processing is unsuitable for these delicate food items, necessitating alternative decontamination methods.
Purpose of the Study:
- To investigate ozone as a decontamination method for high-risk foods like fresh produce.
- To evaluate ozone's efficacy, safety, and impact on product quality.
Main Methods:
- Ozone application in gaseous or aqueous states.
- Controlled process parameters for treatment.
- Assessment of antimicrobial activity and product quality.
Main Results:
- Ozone demonstrates broad-spectrum antimicrobial activity.
- Effective for decontaminating fresh produce without compromising quality when parameters are controlled.
- Increases food safety and extends shelf life.
Conclusions:
- Ozone is a viable sanitizer for easy-to-damage foods like fresh produce.
- Careful control of ozone application and equipment maintenance are essential for safety and efficacy.
- Ozone may not be suitable for liquid foods or products high in unsaturated fats and soluble proteins.
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