| Investigation of the effect factors of atmospheric cold plasma of dielectric barrier discharge on Salmonella inactivation |
| Paper ID : 1332-NICAME1402 |
| Authors: |
|
Bahareh Abdoli1, Mohammad Hadi Khoshtaghaza *2, حمیدرضا قمی مرزدشتی3, محمدامیر کریمی ترشیزی4, سامان آبدانان مهدی زاده5 1STUDENT 2Professor of Biosystems Engineering Dept., Tarbiat Modares University, 3دانشیار دانشگاه شهید بهشتی 4دانشیار دانشگاه تربیت مدرس 5دانشیار دانشگاه علوم کشاورزی و منابع طبیعی خوزستان |
| Abstract: |
| The study aimed to explore the possibility of deactivating Salmonella enterica serovar Enteritidis (SE) through a brief industrial treatment utilizing non-thermal atmospheric pressure plasma devices. Non-thermal plasma, an innovative decontamination technique, exhibits the potential to serve as an intervention strategy for food safety. This method employs an ionized gas at or near room temperature and atmospheric pressure, offering a dry, non-thermal, swift, and minimally damaging decontamination process. To assess the reduction of SE, air was used as the process gas under different experimental circumstances, with Petri dishes containing an initial concentration of 107 CFU/mL. Emission spectroscopy was employed to monitor the key factors of plasma deactivation, namely ultraviolet radiation and reactive species. The utilization of the plasma device resulted in a decrease of SE concentration below the detection limit after a 60s treatment. Moreover, scanning electron microscopy (SEM) revealed that atmospheric cold plasma (ACP) treatment caused significant physical damage to the cells. |
| Keywords: |
| Dielectric barrier discharge, Salmonella, Optical Emission Spectroscopy, scanning electron microscopy |
| Status : Paper Accepted (Poster Presentation) |
