Abstract Changing consumers’ taste for chemical and thermally processed food preference perceived healthier minimally alternatives is a challenge to industry. At present, several technologies have found usefulness as choice methods ensuring that remains unaltered while guaranteeing maximum safety protection of consumers. However, the effectiveness most green technology limited due formation res...

Abstract Ultrasonic sterilization is gaining progressively more attention for microbial without the drawbacks of heat, UV radiation, and chemical treatments. It crucial to understand ultrasonic cavitation in heterogeneous media order disable microorganisms efficiently by ultrasound. In this study, effect initial bacterial concentration on inactivation Escherichia coli was investigated over a wi...

The disinfectant properties of chlorine have been known for centuries but in the last few years water chlorination has attracted some criticism due to its secondary effects and the increased resistance of bacterial strains to chlorine inactivation. In this paper the kinetics of inactivation by chlorine of different Gram-positive and Gram-negative bacterial strains isolated from chlorinated wate...

• Micro/nanobubbles (MNB) promote the photocatalytic disinfection of microbial spores. H 2 O and •OH are primary active species responsible for spore inactivation. MNB induced light scattering significantly increases bactericidal efficiency. Sustainable supply from MNBs can accelerate hole oxidation catalyst. triggered interfacial photoelectric effect plays a key role in enhancement. Microbial ...

UV disinfection technology is of growing interest in the water industry since it was demonstrated that UV radiation is very effective against (oo)cysts of Cryptosporidium and Giardia, two pathogenic micro-organisms of major importance for the safety of drinking water. Quantitative Microbial Risk Assessment, the new concept for microbial safety of drinking water and wastewater, requires quantita...

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...

The worldwide rise in the antibiotic resistance of bacteria forces the development of alternative antimicrobial treatments. A potential approach is photodynamic inactivation (PDI). The aim of the present study was to determine the phototoxicity of protoporphyrin diarginate (PPArg(2)) against methicillin-resistant Staphylococcus aureus and human dermal fibroblasts. Different concentrations (0 to...

Photodynamic inactivation (PDI) combined with chitosan has been shown as a promising antimicrobial approach. The purpose of this study was to develop a chitosan hydrogel containing hydroxypropyl methylcellulose (HPMC), chitosan and toluidine blue O (TBO) to improve the bactericidal efficacy for topical application in clinics. The PDI efficacy of hydrogel was examined in vitro against the biofil...