Thomas Weihe
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Plasma-Treated Water Effect on Sporulating Bacillus cereus vs. Non-Sporulating Listeria monocytogenes Biofilm Cell Vitality Open
Foodborne illness caused by bacterial pathogens is a global health concern and results in millions of infections annually. Therefore, food products typically undergo several processing stages, including sanitation steps, before being distr…
A metadata schema to standardize non-thermal plasma decontamination parameters in food-related applications Open
Non-thermal plasma research has gained significant attention as a promising technology for food-related decontamination. However, the lack of standardization in reporting key parameters restricts the applicability and reusability of result…
View article: Plasma-Treated Water Retards Pellicle-like Biofilm Formation of Bacillus subtilis
Plasma-Treated Water Retards Pellicle-like Biofilm Formation of Bacillus subtilis Open
Plasma-treated water (PTW) recently entered science as a sanitizing agent, which possess the capability for on-demand production. It offers interesting possibilities for sustainable and resource-saving applications in healthcare and food p…
View article: Reducing Storage Losses of Organic Apples by Plasma Processed Air (PPA)
Reducing Storage Losses of Organic Apples by Plasma Processed Air (PPA) Open
The consumer demand for organic food including apples is increasing worldwide. Despite favorable environmental and health benefits, organic farming bears also disadvantages like high amounts of fruit losses due to storage rot. A novel trea…
View article: Plasma-Treated Water: A Comparison with Analog Mixtures of Traceable Ingredients
Plasma-Treated Water: A Comparison with Analog Mixtures of Traceable Ingredients Open
Plasma-treated water (PTW) possess anti-microbial potential against Pseudomonas fluorescence, which is observable for both suspended cells and cells organized in biofilms. Against that background, the chemical composition of PTW tends to f…
View article: Microbial Control of Raw and Cold-Smoked Atlantic Salmon (Salmo salar) through a Microwave Plasma Treatment
Microbial Control of Raw and Cold-Smoked Atlantic Salmon (Salmo salar) through a Microwave Plasma Treatment Open
The control of the pathogenic load on foodstuffs is a key element in food safety. Particularly, seafood such as cold-smoked salmon is threatened by pathogens such as Salmonella sp. or Listeria monocytogenes. Despite strict existing hygiene…
View article: Microbial control of raw and cold-smoked Atlantic salmon (Salmo salar) through a microwave-plasma treatment
Microbial control of raw and cold-smoked Atlantic salmon (Salmo salar) through a microwave-plasma treatment Open
The control of the pathogenic load on foodstuff is a key element in food safety. Particularly, seafood like cold-smoked salmon is threaten by pathogens such as Salmonella sp. or Listeria monocytogenes. Despite existing strict hygienic conc…
View article: A Plasma-Based Decontamination Process Reveals Potential for an in-Process Surface-Sanitation Method
A Plasma-Based Decontamination Process Reveals Potential for an in-Process Surface-Sanitation Method Open
Methods, which use an indirect plasma treatment for the inactivation of microorganisms in foods, claim a vastly growing field of research. This paper presents a method that uses plasma-processed air (PPA) as a sanitizer. In addition to a s…
View article: Reduce and refine: Plasma treated water vs conventional disinfectants for conveyor-belt cleaning in sustainable food-production lines
Reduce and refine: Plasma treated water vs conventional disinfectants for conveyor-belt cleaning in sustainable food-production lines Open
Sustainable and microbiologically secure foodstuff production lines are of increasing scientific interest and are in the focus of recent research programs. Additionally, they are of great importance for the production industry due to the p…
View article: Plasma-Treated Water Affects Listeria monocytogenes Vitality and Biofilm Structure
Plasma-Treated Water Affects Listeria monocytogenes Vitality and Biofilm Structure Open
Background: Plasma-generated compounds (PGCs) such as plasma-processed air (PPA) or plasma-treated water (PTW) offer an increasingly important alternative for the control of microorganisms in hard-to-reach areas found in several industrial…
View article: The Effect of Plasma Treated Water Unit Processes on the Food Quality Characteristics of Fresh-Cut Endive
The Effect of Plasma Treated Water Unit Processes on the Food Quality Characteristics of Fresh-Cut Endive Open
This study evaluated the impact of a defined plasma treated water (PTW) when applied to various stages within fresh-cut endive processing. The quality characteristic responses were investigated to establish the impact of the PTW unit proce…
View article: Plasma-Functionalized Water: from Bench to Prototype for Fresh-Cut Lettuce
Plasma-Functionalized Water: from Bench to Prototype for Fresh-Cut Lettuce Open
Fresh-cut produce like lettuce may contain a very high microbial load, including human pathogens. Therefore, the need for antimicrobial agents at post-harvest stages to mitigate microbial cross-contamination and growth is evident. Sanitati…
View article: Plasma-treated water affects Listeria monocytogenes vitality and biofilm formation
Plasma-treated water affects Listeria monocytogenes vitality and biofilm formation Open
Plasma-generated compounds (PGCs) such as plasma-processed air (PPA) or plasma-treated water (PTW) offer an increasingly important alternative for the treatment of microorganisms in hard-to-reach areas found in several industrial applicati…
View article: Effect of cold atmospheric pressure plasma treatment of eggshells on the total bacterial count inoculated <i>Salmonella</i> Enteritidis and selected quality parameters
Effect of cold atmospheric pressure plasma treatment of eggshells on the total bacterial count inoculated <i>Salmonella</i> Enteritidis and selected quality parameters Open
In the European Union, foodborne outbreaks caused by Salmonella Enteritidis, related to eggs and egg products, have even been reported in 2018. Atmospheric pressure plasma is becoming increasingly important as a decontamination method. A s…
View article: Characterization of Antimicrobial Effects of Plasma-Treated Water (PTW) Produced by Microwave-Induced Plasma (MidiPLexc) on Pseudomonas fluorescens Biofilms
Characterization of Antimicrobial Effects of Plasma-Treated Water (PTW) Produced by Microwave-Induced Plasma (MidiPLexc) on Pseudomonas fluorescens Biofilms Open
For the decontamination of surfaces in the food production industry, plasma-generated compounds such as plasma-treated water or plasma-processed air offer many promising possibilities for future applications. Therefore, the antimicrobial e…
View article: Characterization of Antimicrobial Effects of Plasma‑Treated Water (PTW) Produced by Microwave‑Induced Plasma (MidiPLexc) on <em>Pseudomonas fluorescens </em>Biofilms
Characterization of Antimicrobial Effects of Plasma‑Treated Water (PTW) Produced by Microwave‑Induced Plasma (MidiPLexc) on <em>Pseudomonas fluorescens </em>Biofilms Open
For the decontamination of surfaces in the food production industry, plasma generated compounds (PGCs) such as plasma-treated water (PTW) or plasma processed air (PPA) offer many promising possibilities for future applications. Therefore, …
View article: Antimicrobial effects of microwave‐induced plasma torch (MiniMIP) treatment on <i>Candida albicans</i> biofilms
Antimicrobial effects of microwave‐induced plasma torch (MiniMIP) treatment on <i>Candida albicans</i> biofilms Open
Summary The susceptibility of Candida albicans biofilms to a non‐thermal plasma treatment has been investigated in terms of growth, survival and cell viability by a series of in vitro experiments. For different time periods, the C. albican…
View article: Nonthermal Plasma Jet Treatment Negatively Affects the Viability and Structure of Candida albicans SC5314 Biofilms
Nonthermal Plasma Jet Treatment Negatively Affects the Viability and Structure of Candida albicans SC5314 Biofilms Open
Microbial communities are an increasing problem in medicine but also in industry. Thus, an efficient and rapid removal of biofilms is becoming increasingly important. With the aid of the kINPen09, a radiofrequency plasma jet (RFPJ) instrum…
View article: Effects on cell viability, growth and morphology of <i>C. albicans</i> SC5314 biofilms after kINPen®09 plasma treatment
Effects on cell viability, growth and morphology of <i>C. albicans</i> SC5314 biofilms after kINPen®09 plasma treatment Open
Microorganisms are predominantly organized in biofilms, where cells live in dense communities and are more resistant to external stresses compared to their planktonic counterparts. With in vitro experiments, the susceptibility of Candida a…