A novel approach to explain the inactivation mechanism of Escherichia coli employing a commercially available peracetic acid

Flores, Marina Judith; Lescano, Maia Raquel; Brandi, Rodolfo Juan; Cassano, Alberto E.; Labas, Marisol Daniela

doi:10.2166/wst.2013.721

Cited by 45 publications

(28 citation statements)

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“…At equilibrium any commercial PAA‐based sanitizer consists of PAA, hydrogen peroxide, and water. PAA and hydrogen peroxide work synergistically and result in higher inactivation efficiency (Flores and others ). PAA functions similar to other oxidizing agents.…”

Section: Resultsmentioning

confidence: 99%

“…Once penetrated into microbial cells, PAA can oxidize essential intracellular enzymes and components (Malchesky ; Kitis ). PAA‐based sanitizers offer additional advantages, including easy application in commercial settings, effective in inactivating a broad spectrum of foodborne pathogens and stable antimicrobial efficacy in presence of varying organic loads (Flores and others ). In a very recent study Lee and Huang () reported as compared with sodium hypochlorite solution, washing lettuce with PAA generated fewer disinfection byproducts in fresh‐cut lettuces.…”

Section: Resultsmentioning

confidence: 99%

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Efficacy of Peracetic Acid in Inactivating Foodborne Pathogens on Fresh Produce Surface

Singh

Hung

2018

Journal of Food Science

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Efficacy of Peracetic Acid in Inactivating Foodborne Pathogens on Fresh Produce Surface

Singh

Hung

2018

Journal of Food Science

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“…The first and the rate-determining step is the homolysis of the oxygen-oxygen bond (Reaction 2), which requires activation by a transition metal catalyst, UV irradiation, or activated carbon, for instance [81][82][83][84]. All of the generated radicals contribute to the oxidation reactions, but HO·, peracetyl radical (CH 3 COO·), and to a lesser extent the methyl radical (·CH 3 ) have been suggested to be the most important [80,85]. However, ·CH 3 is of limited availability due to the lower reaction rate constant compared to HO· and the reaction with oxygen (Reaction 7) [78,80].…”

Section: Reactions In Aqueous Media: Disinfection and Oxidation Mechamentioning

confidence: 99%

“…Chloride has also been suggested to accelerate PAA action as a hard surface cleaner [96]. it is an additional source of hydroxyl radicals [85]. However, hydrogen peroxide alone at applicable concentrations is a relatively ineffective disinfectant and oxidant, because catalase enzyme is able to protect microorganisms from its action [81,88,99,100].…”

Section: Reactions In Aqueous Media: Disinfection and Oxidation Mechamentioning

confidence: 99%

Peracids in water treatment: A critical review

Luukkonen

Pehkonen

2016

Critical Reviews in Environmental Science and Technology

272

122

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Peracids have gained interest in the water treatment over the last few decades. Peracetic acid (CH 3 CO 3 H) has already become an accepted alternative disinfectant in wastewater disinfection whereas performic acid (CHO 3 H) has been studied much less, although it is also already commercially available. Peracids have also been tested for drinking water disinfection, oxidation of aqueous (micro)pollutants, sludge treatment and ballast water treatment, to name just a few examples. The purpose of this review paper is to represent comprehensive up-to-date information about the water treatment applications, aqueous reaction mechanisms, and disinfection byproduct formation of peracids, namely performic, peracetic and perpropionic acids. and PFA have several of the qualities of an ideal disinfectant: toxicity to microorganisms, but not to higher forms of life; effectivity at ambient temperatures; stability and long shelf-life; low corrosivity; deodorizing ability; widespread availability and reasonable cost [12].PAA and PFA are colorless liquids with characteristic pungent odors. Both are thermodynamically unstable and can decompose spontaneously or explode when highly concentrated, heated, under mechanical stress or exposed to catalytic effects of impurities [1,13,14]. The recommended storage temperatures are below 30 and 20°C for PAA and PFA, respectively [6,14]. Longer carbon chain length increases stability, and thus PAA is more stable than PFA [1]. However, the O-O bond dissociation energy of PFA and PAA has been calculated to be similar: 48 kcal/mol [15]. Percarboxylic acids have typically pK a values 3-4 units higher than the parent carboxylic acids [1]. Nonetheless, PFA and PAA are corrosive [16]. ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 3Exposure to PAA and PFA causes irritation and possibly permanent damage to the skin (cutaneous emphysema), eyes and the respiratory system. In the skin contact, 0.2% is proposed as the no-observed-effect concentration (NOEC) for short and medium length exposure [17].When inhaled, airborne concentrations less than 0.16-0.17 ppm (0.50-0.52 mg/m 3 ) are considered to cause no irritation [17,18]. However, higher concentrations are harmful and a case study suggested that PAA could cause occupational asthma [19].The largest users of PAA on a global scale (estimated in 2013) are shown in Fig. 1. Similar numbers are not available for PFA, but it is probably used at significantly lower quantities.The largest user, the food industry, applies PAA as a disinfectant in fresh produce washing water, clean-in-place (CIP) processes, on food processing equipment, and in pasteurizers, to name just a few examples [21,22]. PFA is also a suitable disinfectant in low-temperature refrigerated food processing and storage rooms [23]. In healthcare, PAA is used for instance in Recently, methods to determine the residual PAA from wastewater were compared: the spectrophotometric method using DPD and catalase was recommended for 0.1-0.5 mg/L PAA concentrations and the cerimetric/iodometric titration...

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“…An initial prerequisite for the balanced control consists in preserving resilience of a system and attaining a desirable state, whereupon the Наука и техника. Т. control systems shall be focused irrespective of organizational level thereof [5][6][7][8][9][10].…”

Section: Main Partmentioning

confidence: 99%

Concept and Methodological Aspects of Providing Balanced Innovative Development of Transportation System of the Russian Federation

Geraskina

Гончаренко

2020

Nauka teh.

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The growth of significance for innovative economic development of the Russian Federation determines necessity of deeper investigation of properties and specific features of its subsystems functioning, content and forms of their inter-action, search for increasing efficiency of control systems. The transportation system is the most important strategic link of social and economic development of the country, one of the most dynamic, multiplicative and promising segments of the market, which makes 12.5 % of the gross domestic product (GDP) of the Russian Federation. An analysis of transport activity has demonstrated a smoldering recession over the last years which is accompanied by reduction of values for the most important resulting indicators. Strategic benchmarks of developing transportation activity are objectified by the consumers’ demands not only in safe, but in comfortable life medium with high environmental characteristics and aesthetic requirements. The satisfaction of such requirements is possible under condition of large-scale modernization of transportation sphere with the use of breakthrough scientific and technical solutions in all segments of human activity. All this can afford ground that it is necessary to change fundamentally an approach to investigating properties, peculiarities and factors of the transportation system development that provokes modernization of the control system for providing a balanced innovative trend and high standards of population life quality. The results of the investigations have shown that important factors of transportation system development are the following: fair competition, freedom of economic activity, development of market mechanisms, corporate culture and moral values. Study of functioning and scientific approaches to balancing innovative development of the transportation system of the Russian Federation has made it possible to create a conceptual vision and methodological basis with due account of main principles of systems theory, self-organization and synergetics and present it in brief in the given paper.

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A novel approach to explain the inactivation mechanism of Escherichia coli employing a commercially available peracetic acid

Cited by 45 publications

References 0 publications

Efficacy of Peracetic Acid in Inactivating Foodborne Pathogens on Fresh Produce Surface

Efficacy of Peracetic Acid in Inactivating Foodborne Pathogens on Fresh Produce Surface

Peracids in water treatment: A critical review

Concept and Methodological Aspects of Providing Balanced Innovative Development of Transportation System of the Russian Federation

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