Temperature Stability and Effectiveness of Plasma-Activated Liquids over an 18 Months Period
| العنوان: | Temperature Stability and Effectiveness of Plasma-Activated Liquids over an 18 Months Period |
|---|---|
| المؤلفون: | Evanthia Tsoukou, Daniela Boehm, Paula Bourke |
| المصدر: | Articles Water, Vol 12, Iss 3021, p 3021 (2020) Water Volume 12 Issue 11 |
| بيانات النشر: | Technological University Dublin, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | lcsh:Hydraulic engineering, PH, Contact time, medicine.medical_treatment, Resistance, Geography, Planning and Development, Storage, Dielectric barrier discharge, RNS, Escherichia-coli, plasma activated saline (PAS), Biochemistry, Inactivation, chemistry.chemical_compound, lcsh:Water supply for domestic and industrial purposes, Thermocouple, Contact, Saline, Water Science and Technology, 0303 health sciences, Food Chemistry, plasma activated water (PAW), Plasma activated water (PAW), Plasma activated saline (PAS), ROS, 04 agricultural and veterinary sciences, Other Food Science, 040401 food science, Food Biotechnology, plasma activated liquids (PAL), storage, temperature stability, Temperature stability, Ozone, Period (periodic table), Aquatic Science, Food Processing, Time, 03 medical and health sciences, 0404 agricultural biotechnology, lcsh:TC1-978, medicine, lcsh:TD201-500, Log reduction, 030306 microbiology, Water, Plasma, chemistry, Food, Food Microbiology, Plasma activated liquids (PAL), Nuclear chemistry, Food Science |
| الوصف: | Non-buffered plasma-activated liquids such as water and saline have shown bactericidal effects. In the present study, we investigated the anti-bacterial efficacy and stability of plasma-activated water (PAW) and plasma-activated saline (PAS), generated using a high voltage dielectric barrier discharge system. This study compares the potential of non-buffered plasma-activated liquids (PAL) for the inactivation of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) after storage of the solutions at five different temperatures for a storage time up to 18 months after their generation. The temperatures used were room temperature, 4 ° C, &minus 16 ° 80 ° 150 ° C. Both PAW and PAS achieved 6 log reduction for both bacteria on the first day of their generation after 60 min contact time and they retained these effects after 18 months when stored at the lowest temperatures. Chemical analysis of PAL showed that plasma caused a drop in pH, generation of reactive oxygen species and nitrates, whereas no nitrites are detected in the system used. The concentrations of chemical species were affected by the storage at different temperatures and a thermocouple probe was used to investigate the freezing behaviour of the PAL. |
| وصف الملف: | application/pdf |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::152d9256c211cab6dde81d8f1b2b6efa https://arrow.tudublin.ie/context/schfsehart/article/1447/viewcontent/Temperature_Stability_and_Effectiveness_of_Plasma_.pdf |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....152d9256c211cab6dde81d8f1b2b6efa |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |