Effect of temperature and pH value on the UV-C sensitivity of Escherichia coli and Lactobacillus plantarum

Memory Effect on the Survival of Deinococcus radiodurans after Exposure in Near Space

“…Thus, D. radiodurans was not in the exponential phase but in the stationary phase. Bacteria in a stationary state tend to be more resistant to various stressful conditions and radiation ( 27 , 33 , 35 , 37 , 86 – 88 ).…”

“…The harsh conditions for microorganisms in near space include very low atmospheric pressure, extremely low temperature, and high UV and cosmic radiation, of which low temperature and radiation are the main causes of death for microbes ( 6 , 12 , 19 , 25 ). According to the survival experiments under simulated LEO conditions, UV radiation may be more fatal to aggregated bacteria than low temperature ( 3 , 20 , 26 , 27 ). According to the previous literature, it was generally believed that the effectiveness of UV damage was caused by UVC light (200 to 280 nm) ( 28 – 30 ).…”

Impact of irradiation on physico-chemical and nutritional properties of fruits and vegetables: A mini review

“…Soluble and colour components and solids in suspension can decrease the number of photons accessible to inactivate microorganisms by scattering, reflecting and absorbing incidental light ( Koutchma, 2009 ). Contrastingly, other properties like water activity and pH are not applicable in regulating the microbial resistance towards UV irradiation ( Müller et al., 2015 ) that is of extreme importance formerly this technology could be used for several products regardless of these factors ( Gayán et al., 2014a ).…”