Microbial inactivation using plasma-activated water obtained by gliding electric discharges
Top Cited Papers
Open Access
- 6 January 2009
- journal article
- Published by Oxford University Press (OUP) in Letters in Applied Microbiology
- Vol. 48 (1), 13-18
- https://doi.org/10.1111/j.1472-765x.2008.02476.x
Abstract
Aim: To evaluate the microbial disinfection efficacy of a plasmachemical solution obtained by the activation of water with gliding electric discharges. Methods and Results: Distilled water was activated for 5 min by a nonthermal quenched plasma of the glidarc type operating in humid air and at atmospheric pressure. The plasma‐activated water (PAW) was then used to treat planktonic and adherent cells of Staphylococcus epidermidis, Leuconostoc mesenteroides (as models of Gram‐positive bacteria), Hafnia alvei (a Gram‐negative bacteria) and Saccharomyces cerevisiae (as a yeast model). The treatments were less efficient on adherent cells than on planktonic cells in the case of bacteria, but not of S. cerevisiae. Inactivation was more effective for bacteria than for the yeast. Conclusions: Significant reductions in microbial populations were achieved in all cases, demonstrating the effectiveness of this new approach to treat contaminated media. Significance and Impact of the Study: PAW is a promising solution with potential application to the decontamination of equipment and surfaces.Keywords
This publication has 21 references indexed in Scilit:
- Destruction of planktonic, adherent and biofilm cells of Staphylococcus epidermidis using a gliding discharge in humid airJournal of Applied Microbiology, 2007
- Evidence of Temporal Postdischarge Decontamination of Bacteria by Gliding Electric Discharges: Application to Hafnia alveiApplied and Environmental Microbiology, 2007
- Inactivation of Foodborne Pathogens Using A One Atmosphere Uniform Glow Discharge PlasmaFoodborne Pathogens & Disease, 2007
- Formation of reactive species in gliding arc discharges with liquid waterJournal of Electrostatics, 2006
- Effects of microbial loading and sporulation temperature on atmospheric plasma inactivation of Bacillus subtilis sporesApplied Physics Letters, 2005
- GInaFiT, a freeware tool to assess non-log-linear microbial survivor curvesInternational Journal of Food Microbiology, 2005
- Emerging decontamination techniques for meatPublished by Elsevier BV ,2005
- Density and Rotational Temperature Measurements of the OH° and NO° Radicals Produced by a Gliding Arc in Humid AirPlasma Chemistry and Plasma Processing, 2002
- Sterilization and plasma processing of room temperature surfaces with a one atmosphere uniform glow discharge plasma (OAUGDP)Surface and Coatings Technology, 2000
- One explanation for the variability of the bacterial suspension testJournal of Applied Microbiology, 2000