The main objective of this study was to determine the inactivation efficacy dielectric barrier discharge atmospheric cold plasma (DBD-ACP) generated inside a sealed package for Escherichia coli ATCC 25922.A between two circular aluminium electrodes at 40 kV. E. suspensions (10(7) CFU ml(-1)) in either maximum recovery diluent (MRD) or phosphate buffered saline (PBS) were treated 96-well microtitre plate package. effects treatment time, post-treatment storage direct indirect samples exposure...

The main objectives of this work were to investigate the effect atmospheric cold plasma (ACP) against a range microbial biofilms commonly implicated in foodborne and healthcare associated human infections P. aeruginosa quorum sensing (QS)-regulated virulence factors, such as pyocyanin, elastase (Las B) biofilm formation capacity post-ACP treatment. processing namely treatment time mode exposure on antimicrobial activity ACP also examined. Antibiofilm was assessed for E. coli, L....

Recent reports indicate that atmospheric cold plasma (ACP) treatment of seeds can enhance their germination, however, the mechanisms action are not yet entirely clear. In present work, we report on effects wheat seed germination and seedling growth. Additionally, changes in surface chemistry characteristics exposed to were investigated. Treatments 30–60 s significantly enhanced rate showed positive ACP resulted chemical including water uptake contact angle values. Changes pH total titratable...

Antibiotics, such as ofloxacin (OFX) and ciprofloxacin (CFX), are often detected in considerable concentrations both wastewater effluents surface water. This poses a risk to non-target organisms human health. The aim of this work was study atmospheric cold plasma (ACP) degradation antibiotics water meat effluent explore any residual antimicrobial activity samples submitted the process. results revealed that ACP successfully degraded studied reaction mechanism is principally related attack by...

Atmospheric cold plasma (ACP) treatment is an emerging food technology for product safety and quality retention, shelf-life extension, sustainable processing. The activated chemical species of ACP can act rapidly against microorganisms without leaving residues on surfaces. main objectives this study were to investigate the efficiency mechanisms inactivation fungal spores biofilms by understand effects gas-mediated liquid-mediated modes application important contaminants.

Increasing process complexity and consumer demands for less processed goods has led to strong demand new effective decontamination methods. Therefore, atmospheric cold plasma (ACP) technology is finding increasing attention in the food sector potential diverse applications. The aim of this work was investigate antimicrobial efficacy an open-air dielectric barrier discharge reactor treatment products after packaging. approach tested under both static continuous modes against pathogenic...

Atmospheric cold plasma (ACP) is a non-thermal technology, effective against wide range of pathogenic microorganisms. Inactivation efficacy results from generated reactive species. These may interact with any organic components in test matrix including the target microorganism, thus food exert protective effect antimicrobial mode action. The an in-package high voltage ACP process applied conjunction common meat processing MAP gas compositions as well bacteria type and model media composition...

In recent years, atmospheric cold plasma (ACP) has been widely investigated for potential application as an alternative decontamination technology in biomedical and healthcare sectors. this study, the antimicrobial efficacy of ACP against Pseudomonas aeruginosa biofilms was investigated. The 48-h were treated inside sealed polypropylene containers with a high-voltage dielectric barrier discharge (DBD) (80 kVRMS) subsequently stored 24 h at room temperature. Treatment 60 s by either direct or...

The safety and quality of cereal grain supplies are adversely impacted by microbiological contamination, with novel interventions required to maximise whole grains stability. contaminants wheat the efficacy Atmospheric Cold Plasma (ACP) for potential control these risks were investigated. evaluations performed using a contained reactor dielectric barrier discharge (DBD) system; samples treated 0-20 min direct indirect plasma exposure. Amplicon-based metagenomic analysis bacterial 16S rRNA...

Abstract The insecticidal properties and mechanisms of high‐voltage air‐based atmospheric cold plasma using a contained dielectric barrier discharge reactor were investigated against Tribolium castaneum as an important bio‐contaminant in stored grains spoilage. mortality 95.0%–100% for preadult stages can be achieved within seconds treatment, but longer exposure (5 min) is required to kill adult insects. Cold treatment reduces both the respiration rate weight insects affects levels oxidative...

Atmospheric cold plasma (ACP) is under investigation for an extensive range of biocontrol applications in food biosystems. However, the development a novel intervention technology requires thorough evaluation potential negative effects and implications human animal chains' safety. The evaluations were performed using contained, high-voltage, dielectric barrier discharge system. cytotoxicity two types models-a liquid model (wheat medium (WMM)) vs. solid grain extract (WGE)) was compared vitro...

Antimicrobial coating of medical devices has emerged as a potentially effective tool to prevent or ameliorate device-related infections. We investigated novel plasma deposition process for direct pharmaceutical drugs on range surfaces and assessed retention structure function relationship antimicrobial efficacy against mono-species biofilms. Two selected sample antibiotics – ampicillin gentamicin, were deposited onto two types polystyrene microtiter plates stainless steel coupons. The the...

The technology of atmospheric plasma (ionized gas), widely used in material processing, offers one the most significant breakthroughs food processing and safety. allows generation bactericidal molecules very efficiently with low power requirements. Non-thermal has been to effectively decontaminate surfaces, but received limited investigation for in-package decontamination. This study demonstrates potential treatment products sealed packages. advantage cold is that are generated contained...

We present a helium porous plasma jet based on gas diffuser, designed with the aim of decontaminating inner surfaces contaminated structures, e.g., pipes. The operates three discharge modes in ambient air and inside vessel. Its decontamination capacity is demonstrated by evaluating inactivation efficacy biofilm form Pseudomonas aeruginosa , adherent to surface glass vial. Plasma treatments for 5 min filament mode double region reduced bacterial numbers 2.4 2.5 Log 10 CFU/ml. treatment...