Results 41 to 50 of about 5,365 (185)

The Employment of Hydrogen Peroxide in Water Disinfection Poses a Threat to Aquatic Ecosystems Because of Its Toxicity to Nontarget Organisms

Environmental Toxicology, EarlyView.
ABSTRACT Hydrogen peroxide is widely used in water and wastewater treatment, particularly in advanced oxidation processes that aid in the degradation of compounds and microbial disinfection. Despite concerns about potential environmental contamination, its impact on freshwater ecosystems remains inadequately studied.
Letícia Queiroz Almeida, Thayrine Dias Carlos, Leydiane Barbosa Bezerra, Rone S. Barbosa, Nelson Luís Gonçalves Dias Souza, Douglas Henrique Pereira, Renato Almeida Sarmento, Grasiele Soares Cavallini   +7 more
wiley   +1 more source

Evaluation of 0.5% peracetic acid and 2.5% sodium hypochlorite on smear layer removal of root canal instrumented by three rotary systems

Brazilian Dental Science, 2014
Objective: The aim of this study was to evaluate the effect of 0.5% peracetic acid solution and 2.5% sodium hypochlorite solution on smear layer removal of root canal walls after rotary instrumentation.
Ana Paula Martins Gomes, Lais dos Santos Lissi, Marcella Batista Pavanello Coelho, Eduardo Galera da Silva, Frederico Canato Martinho, Maria Filomena Rocha Lima Huhtala   +5 more
doaj   +1 more source

Unraveling the active site cover of coproheme decarboxylase from Listeria monocytogenes

The FEBS Journal, EarlyView.
During heme biosynthesis in Gram‐positive bacteria, coproheme decarboxylase (ChdC) catalyzes the conversion of four‐propionate substrate coproheme to the two propionate product heme b. Its active site is universally covered by a flexible linking loop. This study identifies an important histidine residue, which stabilizes the loop in a ChdC homolog.
Nikolaus Falb, Dominik Hörtnagel, Chris Oostenbrink, Paul G. Furtmüller, Stefan Hofbauer   +4 more
wiley   +1 more source

PERACETIC ACID PRETREATMENT OF ALFALFA STEM AND ASPEN BIOMASS

BioResources, 2011
Alfalfa stems and ground aspen were exposed to peracetic acid (0.5 to 9% on biomass) at temperatures ranging from 40 to 100° C and reaction times from 1 to 5 hours.
Lei Xu,, Ulrike W. Tschirner
doaj  

Evaluation of Disinfectants Used in Pre-Chilling water Tanks of Poultry Processing Plants

Brazilian Journal of Poultry Science
In poultry processing plants, disinfectants are often added to pre-chilling water tanks to reduce microbial contamination. The present study aimed at evaluating the effect of five disinfectants (acidified sodium chlorite, alkyl dimethyl benzyl ammonium ...
BHL Guastalli, DFA Batista, AIS Souza, EAL Guastalli, PD Lopes, AM Almeida, N Prette, FO Barbosa, DT Stipp, OC Freitas Neto   +9 more
doaj   +1 more source

Efficiency of Different Disinfectants on Bacillus cereus Sensu Stricto Biofilms on Stainless-Steel Surfaces in Contact With Milk

Frontiers in Microbiology, 2018
The species of the Bacillus cereus group have the ability to adhere to and form biofilms on solid surfaces, including stainless steel, a material widely used in food industries. Biofilms allow for recontamination during food processing, and the “clean-in-
Higor Oliveira Silva, Joyce Aparecida Santos Lima, Carlos Eduardo Gamero Aguilar, Gabriel Augusto Marques Rossi, Luis Antonio Mathias, Ana Maria Centola Vidal   +5 more
doaj   +1 more source

Peracetic acid

The German Senate Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area (MAK Commission) summarized and re-evaluated the data for peracetic acid [79-21-0] to derive an occupational exposure limit value (maximum concentration at the workplace, MAK value) considering all toxicological end points.
Hartwig, Andrea, MAK Commission, Arand, Michael   +2 more
openaire   +2 more sources

Temperature, Disinfectant Concentration and Bacterial Innate Properties Influence the Disinfection of Bacterial Pathogens Relevant to Catfish Aquaculture

Journal of Fish Diseases, EarlyView.
ABSTRACT Aquaculture systems suffer a wide range of losses, mostly due to bacterial disease outbreaks, and the use of disinfectants is a routine practice for controlling the spread of pathogenic organisms globally. Including Aeromonas hydrophila, Streptococcus agalactiae and Edwardsiella tarda, implicated for natural disease outbreaks and economic ...
Aloysius Chimezie Adibe, Margaret Crumlish   +1 more
wiley   +1 more source

Effect of Peracetic Acid as A Final Rinse on Push Out Bond Strength of Root Canal Sealers to Root Dentin [PDF]

Journal of Clinical and Diagnostic Research, 2015
Background: Smear layer which was formed during the instrumentation of root canals hinders the penetration of root canal sealers to root dentin and affect the bond strength of root canal sealers to root dentin.
Naresh Gaddala, Chandrasekhar Veeramachineni, Muralidhar Tummala   +2 more
doaj   +1 more source

Vinegar–hydrogen peroxide for cleaning removable partial dentures: Antibiofilm efficacy and electrochemical degradation on a cobalt–chromium surface

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated the antibiofilm activity and electrochemical degradation effects of a combined solution of alcohol vinegar with 4% acetic acid and 3% hydrogen peroxide (3:1 by volume) on a cobalt–chromium (Co–Cr) surface.
Fernanda Zanelatto de Castro Paiva, Leonardo Guedes da Silva Moraes, Carolina Alves Freiria de Oliveira, Viviane de Cássia Oliveira, Ana Paula Macedo, Rodrigo Galo, Cláudia Helena Silva‐Lovato, Valéria Oliveira Pagnano   +7 more
wiley   +1 more source