UV-C treatment is discussed as an effective and efficient method to inactivate harmful microorganisms in wine other viticultural products. In comparison stabilisation techniques, the application of thought be beneficial reduce energy costs minimize SO 2 addition. The object this work was determine lethal dose for such Brettanomyces bruxellensis Acetobacter aceti . concept 5-log inactivation app...

In the track structure model, the inactivation cross section is found by summing an inactivation probability over all impact parameters from the ion to the sensitive sites within the cell nucleus. The inactivation probability is evaluated by using the dose response of the system to gamma rays and the radial dose of the ions and may be equal to unity at small impact parameters. We apply the trac...

AIMS The objective of this study was to estimate UV(254) inactivation constants for four viral pathogens: influenza virus type A, porcine respiratory and reproductive syndrome virus (PRRSV), bovine viral diarrhoea virus (BVDV) and reovirus. METHODS AND RESULTS Viruses in culture medium were exposed to one of nine doses of UV(254) and then titrated for infectious virus. Analysis showed that vi...

Aim: To evaluate the capacity of hematoporphyrin monomethyl ether 23 (HMME) in the presence of light to cause photodynamic inactivation (PDI) of C. 24 albicans. Materials & methods: HMME photoactivity was evaluated against 25 azole-susceptible and resistant C. albicans. The mechanisms by which PDI of C. 26 albicans occurred were also investigated. Results: HMME-mediated PACT caused a 27 dose-de...

Spores of Clostridium perfringens, type A, were given separate or sequential treatments of gamma radiation (0 to 0.7 Mrad) and/or high temperature (93 to 103 degrees C). Prior heating, sufficient to inactivate 40 to 99% of the viable spores, had no effect on the subsequent radiation inactivation rate. Prior irradiation had a sensitizing effect on subsequently heated spores. The degree of sensit...

introduction: the aim of this study was to evaluate the effect of dentin on the antifungal activity of gray and white-colored mta (gmta, wmta) using a tube-dilution test. materials and methods: mta preparations were tested freshly mixed and after 24h on candida albicans (ca). the experiment was performed in 24-well culture plates. fifty wells were used and divided into four experimental groups ...

rhabditidae is a family of free-living nematodes. free living nematodes due to their active movement and resistance to chlorination, do not remove in conventional water treatment processes thus can be entered to distribution systems and cause adverse health effects. ultraviolet radiation (uv) can be used as a method of inactivating for these organisms. this cross sectional study was done to inv...

background: ionizing radiation is present in all environment of the earth’s surface, beneath the earth and in the atmosphere. human beings are exposed to external radiation from their surroundings naturally and also to internal radiation from food, water and air they consume. then, it is important to measure and develop knowledge about radiation. objective: this study is designed to evaluate th...