Exploring Potential of a Remote Plasma Electrolysis System (RPES) for Fruit Surface Sterilization
This study investigates the potential of remote plasma electrolysis systems (RPES) for eliminating microorganisms on fruit surfaces. A plasma electrolysis reactor generated long-lived reactive oxygen and nitrogen species (RONS), including hydrogen peroxide (H2O2), nitrite (NO2-), nitrate (NO3-), nit...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/02/e3sconf_icome2025_02009.pdf |
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| _version_ | 1841526771734806528 |
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| author | Thana Phuthidhorn Jaikua Mathin Maitip Jakkrawut Ungwiwatkul Sunisa Prasertboonyai Kanyarak Rueangwong Athitta Promsart Woranika |
| author_facet | Thana Phuthidhorn Jaikua Mathin Maitip Jakkrawut Ungwiwatkul Sunisa Prasertboonyai Kanyarak Rueangwong Athitta Promsart Woranika |
| author_sort | Thana Phuthidhorn |
| collection | DOAJ |
| description | This study investigates the potential of remote plasma electrolysis systems (RPES) for eliminating microorganisms on fruit surfaces. A plasma electrolysis reactor generated long-lived reactive oxygen and nitrogen species (RONS), including hydrogen peroxide (H2O2), nitrite (NO2-), nitrate (NO3-), nitrous acid (HNO2), and nitric acid (HNO3), which were introduced into a treatment chamber through airflow. The spatial distribution of these reactive species was visualized using a KI-starch agar gel reagent. The antimicrobial efficacy of RPES was tested in vitro against methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli). Following optimization, the system was applied to sterilize 1.0 kg samples of rambutans and grapes, with a treatment time of 10 minutes. After treatment, aerobic bacteria on rambutan surfaces decreased by 98.3%, and yeasts and molds level dropped by 50.1%. On grape surfaces, RPES completely eliminated aerobic bacteria, yeasts, and molds. These findings demonstrate RPES’s effectiveness in inactivating surface pathogens on fruits, highlighting its potential for broader applications in fruit sterilization. |
| format | Article |
| id | doaj-art-f58247452c424185a6c62f7b7a0eb820 |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-f58247452c424185a6c62f7b7a0eb8202025-01-16T11:22:35ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016020200910.1051/e3sconf/202560202009e3sconf_icome2025_02009Exploring Potential of a Remote Plasma Electrolysis System (RPES) for Fruit Surface SterilizationThana Phuthidhorn0Jaikua Mathin1Maitip Jakkrawut2Ungwiwatkul Sunisa3Prasertboonyai Kanyarak4Rueangwong Athitta5Promsart Woranika6Faculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong CampusFaculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong CampusFaculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong CampusFaculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong CampusFaculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong CampusFaculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong CampusFaculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong CampusThis study investigates the potential of remote plasma electrolysis systems (RPES) for eliminating microorganisms on fruit surfaces. A plasma electrolysis reactor generated long-lived reactive oxygen and nitrogen species (RONS), including hydrogen peroxide (H2O2), nitrite (NO2-), nitrate (NO3-), nitrous acid (HNO2), and nitric acid (HNO3), which were introduced into a treatment chamber through airflow. The spatial distribution of these reactive species was visualized using a KI-starch agar gel reagent. The antimicrobial efficacy of RPES was tested in vitro against methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli). Following optimization, the system was applied to sterilize 1.0 kg samples of rambutans and grapes, with a treatment time of 10 minutes. After treatment, aerobic bacteria on rambutan surfaces decreased by 98.3%, and yeasts and molds level dropped by 50.1%. On grape surfaces, RPES completely eliminated aerobic bacteria, yeasts, and molds. These findings demonstrate RPES’s effectiveness in inactivating surface pathogens on fruits, highlighting its potential for broader applications in fruit sterilization.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/02/e3sconf_icome2025_02009.pdf |
| spellingShingle | Thana Phuthidhorn Jaikua Mathin Maitip Jakkrawut Ungwiwatkul Sunisa Prasertboonyai Kanyarak Rueangwong Athitta Promsart Woranika Exploring Potential of a Remote Plasma Electrolysis System (RPES) for Fruit Surface Sterilization E3S Web of Conferences |
| title | Exploring Potential of a Remote Plasma Electrolysis System (RPES) for Fruit Surface Sterilization |
| title_full | Exploring Potential of a Remote Plasma Electrolysis System (RPES) for Fruit Surface Sterilization |
| title_fullStr | Exploring Potential of a Remote Plasma Electrolysis System (RPES) for Fruit Surface Sterilization |
| title_full_unstemmed | Exploring Potential of a Remote Plasma Electrolysis System (RPES) for Fruit Surface Sterilization |
| title_short | Exploring Potential of a Remote Plasma Electrolysis System (RPES) for Fruit Surface Sterilization |
| title_sort | exploring potential of a remote plasma electrolysis system rpes for fruit surface sterilization |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/02/e3sconf_icome2025_02009.pdf |
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