Effect of Cold Atmospheric Plasma on blueberries

Cold Atmospheric Plasma has been applied to treat wastewater produced by washing fruits and vegetables. It enables the decontamination of the byproducts in large scale production. It is an innovative technology with high potential to reduce microbial load on food surface. The efficacy of the treatment depends on how the plasma is generated as different plasma devices have been developed during the last two decades for specific use on food and wastewater.

Among the last experiments on fresh food, Cold Atmospheric Plasma has been applied on fresh blueberries to test its effect on microbial load reduction. In a recent study, it has been reported that the plasma generated as a disinfection technique reduced microbial load in blueberries without significantly impacting most quality parameters.

The key parameter in plasma treatment resides in the plasma generation and technique. Surface plasma discharges, the so-called surface Dielectric Barrier Discharges (DBD) have shown the best results in surface food decontamination.

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