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Working Paper Cnr-Ceris, N° 03/2013

Emerging scientific directions in plasma technology for food decontamination

Mario Coccia
National Research Council of Italy
CNR-CERIS
Institute for Economic Research on Firm and Growth
Collegio Carlo Alberto - via Real Collegio, n. 30
10024 Moncalieri (Torino) – ITALY

Georgia Institute of Technology
School of Public Policy
685 Cherry Street, N.W. Atlanta, Georgia, US 30332-0345
Tel.: +39 011 68 24 925;
fax : +39 011 68 24 966;
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Ugo Finardi
National Research Council of Italy
CNR-CERIS
Institute for Economic Research on Firm and Growth
Collegio Carlo Alberto - via Real Collegio, n. 30
10024 Moncalieri (Torino) – ITALY
University of Torino

Department of Chemistry and NIS-Centre of Excellence
via P. Giuria 7, 10125 Torino
Tel.: +39 011 68 24 923;
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Abstract: The purpose of this research is to analyze the evolutionary growth of knowledge in non-thermal plasma technologies applied for food decontamination in order to pinpoint emerging scientific directions. The sample uses 22,836 articles and 2,282 patents from Scopus/SciVerse database in order to calculate the rate of scientific and technological growth that may detect emerging technological trajectories and applications. Results show that emerging plasma technology for food decontamination are mainly cold atmospheric pressure plasma and gas plasma. Moreover, plasma seems to be a promising technology for decontamination of fresh food from bacteria Staphylococcus Aureus, Listeria Monocytogenes and Pseudomonas Aeruginosa, respectively. However, key limitations are the relatively early state of technology development, and the largely unexplored impacts of non thermal plasma on nutritional qualities of treated foods. Nevertheless, this technology shows promise for bio-decontamination and is the subject of active research to enhance efficacy and open up crucial opportunities to industrial and social safety.

Keywords: Plasma, Non-Thermal Plasma, Technological Innovation, Technological Trajectories, Decontamination, Sterilization, Food, Bacteria.

JEL Codes: L 66, O30

Mario Coccia thanks the colleagues of the Georgia Institute of Technology for scientific support. In addition, he gratefully acknowledges financial support from the CNR - National Research Council of Italy for visiting at Yale University and Georgia Institute of Technology where this research has been developed. Ugo Finardi acknowledges the help and spur of Proff. S. Coluccia and L. Battezzati (University of Torino, Italy). We also thank Ceris-CNR staff and Prof. S. Rolfo of CERIS-CNR for supporting this research field. We thank an anonymous referee for detailed comments and suggestions. The usual disclaimer holds, however.

The authors in parentheses (MC: Mario Coccia and UF: Ugo Finardi) have made substantial contributions to the following tasks of research: Conception (MC); Design (MC and UF); theoretical framework (MC & UF); acquisition of data (UF); modelling and analysis of data (MC); interpretation of data (MC and UF); drafting of the manuscript (MC and UF); critical revision of the manuscript for important intellectual content (MC); statistical analysis (MC), supervision (MC). The usual disclaimer holds, however.

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