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Bibliographic record number: 916898

Journal

Authors: Vukušić, Tomislava; Stulić, Višnja; Režek Jambrak, Anet; Milošević, Slobodan; Stanzer, Damir; Herceg, Zoran
Title: Effect of treatment by non-thermal plasma jet on the growth of various food spoilage bacteria in superfluous
Source: Croatian Journal of Food Science and Technology (1847-3466) 8 (2016), 1; 20-29
Paper type: article
Keywords: gas-phase plasma ; atmospheric pressure ; food spoilage bacteria ; response surface methodology
Abstract:
The efficiency of gas phase plasma at atmospheric pressure by using an electrical discharge in gas argon on the inactivation of microorganisms was examined. The gas phase plasma was applied to suspensions of pure cultures Escherichia coli 3014, Staphylococcus aureus 3048, Salmonella sp. 3064, Listeria monocytogenes ATCC 23074 and Bacillus cereus 30. The experiments were planned and performed according to a statistical experimental design, specifically central composite design, which considered three independent variables: volume (2, 3 and 4 mL), gas flow (0.75, 1 and 1.25 L/min) and treatment time (3, 4 and 5 min). Two studied parameters, volume and treatment time, substantially affected the inactivation. For plasma treatment, the inactivation can be attributed to UV radiation and plasma reactive oxygen species (ROS). It was found that Gram-negative bacteria were more susceptible to the plasma treatment than Gram-positive bacteria, and that the susceptibility of Gram-positive bacteria was remarkably species-dependent. Complete inactivation of Escherichia coli, Salmonella sp., and Listeria monocytogenes was achieved when optimal combination of parameters was applied.
Project / theme: HRZZ-IP-11-2013-6248
Original language: ENG
Category: Znanstveni
URL: http://www.ptfos.unios.hr/novicjfst/index.php/2016/06/23/cjfst-2016-8-1-03-3/
Broj citata:
Altmetric:
DOI: 10.17508/CJFST.2016.8.1.03
URL cjelovitog rada:
Google Scholar: Effect of treatment by non-thermal plasma jet on the growth of various food spoilage bacteria in superfluous
Contrib. to CROSBI by: Karla Hanousek Čiča (khanousekcica@pbf.hr), 8. Sij. 2018. u 10:46 sati



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