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ARS Home » Northeast Area » Wyndmoor, Pennsylvania » Eastern Regional Research Center » Food Safety and Intervention Technologies Research » Research » Publications at this Location » Publication #309362

Title: Cold Plasma as a nonthermal food processing technology

Author
item Niemira, Brendan

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 9/22/2014
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Contamination of fresh and fresh-cut fruits and vegetables by foodborne pathogens has prompted research into novel interventions. Cold plasma is a nonthermal food processing technology which uses energetic, reactive gases to inactivate contaminating microbes. This flexible sanitizing method uses electricity and a carrier gas such as air, oxygen, nitrogen or helium; antimicrobial chemical agents are not required. The primary modes of action are via reactive chemical products of the cold plasma ionization process and UV light. Current research has developed a wide array of cold plasma systems which operate at atmospheric pressures or in low pressure treatment chambers. Reductions of greater than 5 logs can be obtained for pathogens such as Salmonella, Escherichia coli O157:H7, Listeria monocytogenes and Staphylococcus aureus. This presentation will summarize the science behind this class of devices and describe recent advances in this promising area of technology. Finally, key areas of future research will be described that will facilitate commercialization.