WITHDRAWN: Efficacy studies on per acetic acid against pathogenic microorganisms

Katara, Gunjan; Hemvani, Nanda; Chitnis, Sheetal; Chitnis, V; Chitnis, DS

doi:10.1016/j.jpsic.2015.12.003

Cited by 3 publications

(10 citation statements)

References 14 publications

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“…The killing efficacy of 1.0% Oxonia Active at 25°C significantly increased as the contact time was prolonged from 5 to 15 min for A. niger and C. albicans with a maximum reduction of 7.3 and 7.8 log CFU/ml, respectively. Longer contact time (>10 min) could have allowed the peracetic acid to penetrate the thick fungal cell wall and execute its killing action (Katara et al., 2016).…”

Section: Resultsmentioning

confidence: 99%

“…This shows that higher temperature alone was not sufficient as concentration could be the Flimiting factor to achieve the desired microbial reduction. This could be due to the complexity of fungal cell wall structure that can minimize the effects of the quaternary ammonium (Katara et al., 2016; Korukluoglu et al., 2006; Sandle et al., 2014). Notably, B. subtilis showed the most significant reduction (7.6 log CFU/ml) compared with any other pathogens.…”

Section: Resultsmentioning

confidence: 99%

“…However, this treatment was not sufficient to inhibit the growth of B. subtilis and A. niger as the reduction did not attain >5 log CFU/ml. This could possibly be due to the presence of protective outer coating of B. subtilis (Ribes et al, 2021), and thick fungal cell wall of A. niger (Katara et al, 2016;Sandle et al, 2014).…”

Section: Carvacrol (Plant-based Compound)mentioning

confidence: 99%

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The effects of different disinfectants and application conditions on microbial contaminants at dairy processing line

Pacheappan

Samsudin

Hasan

2021

Food Processing Preservation

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Disinfectants are very crucial in reducing microbial contaminants at dairy processing lines. However, there are limitations of their efficacy due to broad spectrum of microorganisms. Therefore, the aim of the present work was to investigate varying implementation conditions of disinfectants, Oxonia Active, Whisper V, and carvacrol, that could give the highest reduction of foodborne pathogens. The killing efficacy of disinfectants were determined through suspension test at different concentrations (0.3%–1.0%), temperatures (25–70°C), and contact times (5–15 min) against six foodborne pathogens. 1.0% Oxonia Active at 25°C for >10 min in suspension test achieved >5 log CFU/ml microbial reduction for all foodborne pathogens with a complete elimination of Escherichia coli, Staphylococcus aureus, and Bacillus subtilis. The application of Oxonia Active on the surface and biofilm tests (representing dairy processing equipment) showed significant microbial (pathogen) reduction (>3 log CFU/ml) of four pathogens cocktail. Practical applications In the present work, different conditions (concentration, temperature, and time) of commercial and plant‐based disinfectants were investigated to obtain the highest killing efficacy against selected foodborne pathogens and biofilm formation, particularly in dairy processing line. It is essential to identify the best possible conditions of disinfectant that can effectively eliminate broad spectrum of foodborne pathogens, thus minimizing the stress on the processing line and the environment. The optimized disinfectants in the present work could also be combined with hurdle technology to improve cost‐efficiency, sustainability, and productivity of the dairy industry.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Carvacrol (Plant-based Compound)mentioning

confidence: 99%

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The effects of different disinfectants and application conditions on microbial contaminants at dairy processing line

Pacheappan

Samsudin

Hasan

2021

Food Processing Preservation

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“…In contrast, Katara et al. (2016) reported the efficiency of peracetic acid (0.1%, 30 min exposure) against Aspergillus niger since it reduced the inoculum of 10 8 cells/ml more than 5Log.…”

Section: Discussionmentioning

confidence: 97%

“…A possible explanation for the fact could be the source of the strains tested. While we used strains previously recovered from a hemodialysis facility, probably already adapted to disinfection conditions, Katara et al. (2016) used wild isolates.…”

Section: Discussionmentioning

confidence: 99%

Disinfectants in a Hemodialysis Setting: Antifungal Activity Against Aspergillus and Fusarium Planktonic and Biofilm Cells and the Effect of Commercial Peracetic Acid Residual in Mice

Lopes

Csonka

Castellane

et al. 2021

Front. Cell. Infect. Microbiol.

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Aspergillus and Fusarium cause a broad spectrum of infections in humans, mainly in immunocompromised patients. Among these, patients undergoing hemodialysis are highly susceptible to infections, requiring a constant and adequate environmental disinfection program. Nevertheless, monitoring the residual disinfectants can contribute to the morbidity and mortality reduction in these patients. Here, we evaluated the susceptibility of Aspergillus spp. (n=19) and Fusarium spp. (n=13) environmental isolates against disinfectants (acetic acid, citric acid, peracetic acid, sodium hypochlorite, and sodium metabisulphite) at different concentrations and time exposures. Also, we investigated the in vivo toxicity of the peracetic acid residual concentration in mice. Fusarium isolates were identified by F. equiseti, F. oxysporum and F. solani while Aspergillus presented clinically relevant species (A. fumigatus, A. niger and A. terreus) and environmental ones. Against planktonic cells, only two disinfectants (acetic acid and sodium hypochlorite) showed a fungicidal effect on Fusarium spp., while only one (sodium hypochlorite) was effective against Aspergillus spp. Both fungi formed robust in vitro biofilms with large amounts of the extracellular matrix, as evidenced by electron micrographs. Exposure of fungal biofilms to disinfectants showed sensitivity to three (acetic, citric, and peracetic acids), although the concentrations and times of exposure varied according to the fungal genus. Mice exposure to the residual dose of peracetic acid during 60 weeks showed anatomopathological, hematological, and biochemical changes. The implementation of news control measures and those that already exist can help reduce infections, the second cause of death and morbidity in these patients, besides providing safety and well-being to them, a priority of any quality health program.

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The efficiency of grain treatment with natural disinfectants for the prevention of aspergillosis in birds

Karasenko

2022

SMLNUVMB

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In the structure of mycosis pathologies of birds, the top place is occupied by aspergillosis. The main pathogenicity factor is Aspergillus spp., which quickly penetrates the lungs' alveoli and causes a pathological process. Because the level of the fodder base contamination with fungi of the genus Aspergillus is quite significant, an essential link in the technological process of growing young poultry is to prevent contamination and increase the economic efficiency of production. The paper examines the effectiveness assessment of grain treatment with natural disinfectants in the framework of aspergillosis prevention in poultry farming. Moreover, the advantages of using natural disinfectants for their use in modern eco-production of animal-origin products are described in the paper. Antifungal properties of infusions of medicinal plants are due primarily to the presence of biologically active substances synthesized by the plant. Black walnut and walnut (leaves and fruits of milk-wax and full ripeness), rosehips (dried fruits and roots), carnation (fruits), calendula (flowers), turmeric, chamomile (flowers) were used as the studied plants for the disinfectants production. The shortcomings of the existing synthetic means used in poultry farming are emphasized separately. In particular, phenolic resins have heterogeneous antifungal activity against fungal spores and are incompatible with some detergents. It was found that there is a significant difference in the number of live birds after 30 days of feeding grain treated with various disinfectants and when feeding grain without prior treatment. Thus, for group 1, which was fed grain treated with an infusion of walnut fruits and leaves, the absence of Aspergillus fumigatus fungi was noted even after 30 days of feed treatment. A similar result was obtained after processing grain with an infusion of black walnut fruits or leaves. In group 2, the control group, a significantly higher degree of withdrawal of young birds caused by aspergillosis was observed. The medicinal plants selected also did not demonstrate satisfactory results in all cases because turmeric infusions from the fruits and roots of rosehips and calendula flowers did not demonstrate a sufficient indicator of effectiveness. On the 20th day after grain processing, Aspergillus fungi were recorded in the samples. Further research on the effect of medicinal plant infusions on the fodder base of various types of poultry is promising because the prevention of aspergillosis is more economically feasible than the treatment of sick young animals.

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WITHDRAWN: Efficacy studies on per acetic acid against pathogenic microorganisms

Cited by 3 publications

References 14 publications

The effects of different disinfectants and application conditions on microbial contaminants at dairy processing line

The effects of different disinfectants and application conditions on microbial contaminants at dairy processing line

Disinfectants in a Hemodialysis Setting: Antifungal Activity Against Aspergillus and Fusarium Planktonic and Biofilm Cells and the Effect of Commercial Peracetic Acid Residual in Mice

The efficiency of grain treatment with natural disinfectants for the prevention of aspergillosis in birds

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