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Changeover method for biosafety cabinets using ozone gas.
PLoS One
January 2025
Center for Stem Cell and Regenerative Medicine, Institute of Science Tokyo, Bunkyo-ku, Tokyo, Japan.
This study evaluated the effectiveness of a biosafety cabinet equipped with an ozone generator, particularly during the transition periods between the production of cell products. As living cell products cannot undergo sterilization, maintaining an aseptic manufacturing environment is paramount. Raw materials, often derived from human tissues, are frequently contaminated with various resident bacteria, necessitating environmental resets after each process.
View Article and Find Full Text PDFOzone disinfection of treated wastewater for inactivation of Cryptosporidium parvum for agricultural irrigation.
Water Environ Res
January 2025
Laboratorio Nacional para la Investigación en Inocuidad Alimentaria (LANIIA), Centro de Investigación en Alimentación y Desarrollo (CIAD), Culiacán, Sinaloa, Mexico.
The reliance on agriculture in many nations has increased the use of treated wastewater for irrigation. However, reclaimed water still poses health risks from resistant pathogens like Cryptosporidium spp. Ozone, a strong disinfectant, has been used in water treatment.
View Article and Find Full Text PDFCu-Doped MnO Catalysts for Effective Fruit Preservation via Ozone Synergistic Catalytic Oxidation.
Foods
December 2024
State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
Developing and implementing technologies that can significantly reduce food loss during storage and transport are of paramount importance. Ozone synergistic catalytic oxidation (OSCO) technology has been developed, which sterilizes bacteria and viruses on the surface of food and degrades ethylene released during fruit storage through the active oxygen produced by the catalytic decomposition of ozone. Herein, we report the hydrothermal synthesis of MnO with distinct phase compositions and nanostructures through simply varying the reaction temperatures.
View Article and Find Full Text PDFEffectiveness of gaseous ozone on and bacterial loads on retailed meat sold at Iraqi Wasit markets.
Open Vet J
November 2024
Department of Nursing, Technical Institute of Suwaria, Middle Technical University, Baghdad, Iraq.
Background: Ozone (O) is a promising alternative antibacterial agent that has recently been used in meat processing. The understanding of the appropriate functional settings of O for addressing food safety problems is still insufficient.
Aim: The aim of this study was, therefore, to investigate the effects of exposure to O on the bacteriological quality of retail meat inoculated with at refrigeration temperatures.
Active plasma sterilizer for planetary protection and contamination control for space missions.
Sci Rep
December 2024
Emerging Pathogens Institute, University of Florida, Gainesville, FL, 32611, USA.
This paper introduces a novel, compact plasma sterilization system, the Active Plasma Sterilizer (APS), for planetary protection space missions. The development of the APS system is done through iterative testing and design modifications aimed at addressing decontamination modalities for time and temperature, cleaning adhesive surfaces, and cleaning protocols beyond alcohol and bleach. Decontamination testing of Deinococcus radiodurans, Geobacillus stearothermophilus (spore forming bacteria), and Aspergillus fumigatus (fungi) was verified for the APS on relevant materials of 4 to 5 log reduction up to complete killing in 45 min or less.
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