A5005129549- Plasma Applications and Diagnostics
- Listeria monocytogenes in Food Safety
- Essential Oils and Antimicrobial Activity
- Microbial Inactivation Methods
- Postharvest Quality and Shelf Life Management
- Nanocomposite Films for Food Packaging
- Surface Modification and Superhydrophobicity
- Advanced Chemical Sensor Technologies
- Biosensors and Analytical Detection
- Recycling and Waste Management Techniques
- Electrohydrodynamics and Fluid Dynamics
- Hops Chemistry and Applications
- Phytochemicals and Antioxidant Activities
- Meat and Animal Product Quality
- Plasma Diagnostics and Applications
- Radiation Effects and Dosimetry
- Microencapsulation and Drying Processes
- Biopolymer Synthesis and Applications
- Medical Device Sterilization and Disinfection
- Infection Control and Ventilation
- Insect Pest Control Strategies
- Nanoparticles: synthesis and applications
- Food Safety and Hygiene
- Microplastics and Plastic Pollution
- 3D Printing in Biomedical Research
Fraunhofer Institute for Process Engineering and Packaging
2015-2024
University of Regensburg
2022
Technical University of Munich
2019
Inter 3
2016
Fraunhofer Society
2008
Abstract The inactivation of bacteria and biomolecules using plasma discharges were investigated within the European project BIODECON. goal was to identify isolate mechanisms by combining dedicated beam experiments with especially designed reactors. reactors are based on a fully computer‐controlled, low‐pressure inductively‐coupled (ICP). Four these built distributed among consortium, thereby ensuring comparability results between teams. Based this combined effort, role UV light, chemical...
Journal Article Antimicrobial activity of hop extracts against foodborne pathogens for meat applications Get access B. Kramer, Kramer Fraunhofer Institute Process Engineering and Packaging IVV Freising Germany Correspondence Bernd Department Food Quality, (IVV), Giggenhauser Str. 35, D‐85354 Freising, Germany. E‐mail: bernd.kramer@ivv.fraunhofer.de Search other works by this author on: Oxford Academic Google Scholar J. Thielmann, Thielmann A. Hickisch, Hickisch P. Muranyi, Muranyi...
The application of essential oils as antimicrobials is a current subject research and promising approach in terms natural food preservation. Due to the diversity EO producing plant genera inconsistent use susceptibility testing methods, information on antibacterial potency many varieties fragmentary. This study was performed assess minimal inhibitory concentrations (MIC) 179 samples from 86 varieties, using single method approach, excluding emulsifying agents. MICs were acquired broth...
Aims: To investigate the microbial inactivation efficiency of a newly developed cascaded dielectric barrier discharge (CDBD) set-up against various micro-organisms on polyethylene terephthalate (PET) foils. Methods and Results: Inactivation kinetics in dependency time were produced with air as process gas test strains like Salmonella serotype Mons, Staphylococcus aureus Escherichia coli spores Bacillus atrophaeus, Aspergillus niger Clostridium botulinum, which homogeneously distributed...
Journal Article Effect of pulsed light on structural and physiological properties Listeria innocua Escherichia coli Get access B. Kramer, Kramer Fraunhofer Institute for Process Engineering Packaging IVV Freising Germany Correspondence Bernd Department Retention Food Quality, (IVV), Giggenhauser Str. 35, D‐85354 Freising, Germany.E‐mail: bernd.kramer@ivv.fraunhofer.de Search other works by this author on: Oxford Academic Google Scholar P. Muranyi Applied Microbiology, Volume 116, Issue 3, 1...
There are two chemotypes of Litsea cubeba (Lour.) Pers. (fam. Lauraceae) essential oils (EOs), either dominated by citral and limonene or citronellal. L. EOs exhibits broad antimicrobial activity against bacteria fungi with minimal inhibitory concentrations (MICs) from 0.5 to 2500 µg/mL. This is attributed the monoterpene citral, exhibiting a spectrum (MICs 50–1000 µg/mL). Pseudomonas aeruginosa were found most resistant, MIC values above 1000 Citral's mode action not fully investigated. At...
Aims: To investigate the effect of relative gas humidity on inactivation efficiency a cascaded dielectric barrier discharge (CDBD) in air against Aspergillus niger and Bacillus subtilis spores PET foils. Methods Results: The kinetics as function treatment time were determined using synthetic with different process gas. Spores A. B. respectively evenly sprayed foils for use bioindicators. In case niger, increased spore mortality was found at high 70% (approx. 2 log10). This more evident...
Development and evaluation of an antimicrobially active titanium dioxide coating.For this purpose, coatings were applied to glass slides by using a sol-gel method then exposed light source. The antimicrobial efficiency was determined count reduction test for selected strains (Aspergillus niger, Bacillus atrophaeus, Kocuria rhizophila), which homogenously sprayed onto surface. bacterial K. rhizophila reduced up 3.3 log(10) on samples within 4 h UV-A exposure. Experiments with spore formers...
Weight loss, microbial spoilage and enzymatic browning are the main quality-determining processes which limit shelf-life of fresh-cut apples. In this study, two edible coatings based on Aloe vera gel (AV) sodium alginate cross-linked with calcium lactate (AC), addition 10 mg/mL ferulic acid (FA) as a functional ingredient, were developed in order to prolong quality safety apple discs. Texture parameters, pH Brix values water activity did not undergo relevant changes related treatments....
Aims: To investigate the effect of a cascaded dielectric barrier discharge (CDBD) treatment on biological structure selected bacterium and properties different polymer films. Methods Results: Inactivation kinetics were measured using air as process gas Bacillus atrophaeus spores vegetative cells, which had been homogeneously distributed surface. The changes to outer coats DNA endospores cells after plasma determined biomolecular chemical methods. experiments showed that damage molecules in...
The dessert banana is a popular fruit worldwide, but its ripening process greatly accelerated by high temperatures, which eventually leads to an unpleasant taste and the appearance of spots on skin fruits. To slow down bananas, expensive strategies are used, usually not practical for conventional farmers in less developed countries. In this study, we try find costly alternative. Therefore, effects coatings lemon peel extract (2.5%, 5%, 10%), calcium chloride (4%), glycerol (2%) shelf life...