Aflatoxicosis in turkey poults is prevented by treatment of naturally contaminated corn with ozone generated by electrolysis

McKenzie, Kenneth S.; Kubena, L. F.; Denvir, Adrian; Rogers, Tom D.; Hitchens, G. Duncan; Bailey, R. H.; Harvey, R. B.; Buckley, Sandra A.; Phillips, Timothy D.

doi:10.1093/ps/77.8.1094

Cited by 97 publications

(54 citation statements)

References 34 publications

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“…Ozone gas is a powerful oxidant capable of reaction with numerous chemical groups [8] Ozone either completely degrades mycotoxins or causes chemical modifications, reducing their biological activity. Ozone reacts across the 8, 9 double bond of the furan ring of AFB 1 through electrophilic attack,causing the formation of primary ozonides followed by rearrangement into monozonide derivatives such as aldehydes, ketones and organic acids [9,10] The objective of this study was to evaluate the capability of ozone gas to decontamination of AFB 1 in contaminated wheat grain and confirm detoxification using laboratory animals…”

Section: Introductionmentioning

confidence: 99%

Biological and Histopathological Evaluations of Using Ozone Gas in Decontamination of AflatoxinB1 in Wheat Grains

TA¹

2017

MOJT

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Forty eight Sprague-Dawley male rats were divided into six groups including the control group fed standard diet, the group fed on AflatoxinB 1 (AFB 1 ) free wheat treated with ozone gas at 20 ppm for 20 min mixed with standard diet, the group fed on AFB 1 free wheat treated with ozone gas at 40 ppm for 20 min mixed with standard diet, the group fed AFB 1 -contaminated diet (2.5 mg/kg diet), the group fed on AFB 1 -contaminated wheat ozonation at 20 ppm for 20 min mixed with standard diet and the group fed on AFB 1 -contaminated wheat ozonation at 40 ppm for 20 min mixed with standard diet. The results indicated that the animals fed AFB 1 -contaminated diet alone showed a significant decrease in feed intake compared to the control group. Animals fed AFB 1 -contaminated wheat treated with ozone showed a significant improvement in feed intake and body weight compared to group fed AFB 1 -contaminated diet. In addition toanimals fed AFB 1 -contaminated diet (2.5mg/kg diet) untreated for 4 weeks showed a significant increase in levels ofthe biochemical parameters and levels of createnine and uric acid compared to the control group or the groups fed ozone treated wheat alone or the AFB 1 -contaminated wheat treated with ozone gas at 20 and 40 ppm. On the other hand animal fed on AFB 1 -contaminated wheat treated with ozone showed a significant improvement in all tested parameters. The Glutathione reduced (GSH) level decreased in animal feed on AFB 1 -contaminated wheat when compared with the control. Moreover, GSH value in animal feed on contaminated diet after ozonation was related with control group. The histological examination of the liver and kidney tissues showed the animals fed on AFB 1 free diet and treated with ozone showed a significant elimination of the harmful effects in the liver and kidney tissues

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Section: Introductionmentioning

confidence: 99%

Biological and Histopathological Evaluations of Using Ozone Gas in Decontamination of AflatoxinB1 in Wheat Grains

TA¹

2017

MOJT

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“…Of the various types of mycotoxins, aflatoxins stand out as presenting high acute and chronic toxicity in animals, including human beings; they can also cause liver damage, such as cirrhosis and hepatocellular carcinoma, in addition to teratogenic effects (ABDULKADAR et al, 2000). In this context, ozone has been proposed as either a fungicide, preventing aflatoxins from being produced, or as a healing agent that can detoxify contaminated products (MCKENZIE et al, 1998;GÜZEL-SEYDIM et al, 2004;WU et al, 2006;YOUNG et al, 2006;ZOTTI et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Decomposition kinetics of gaseous ozone in peanuts

Alencar

Faroni²,

Martins³

et al. 2011

Eng. Agríc.

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This study was conducted to evaluate the decomposition kinetics of gaseous ozone in peanut grains. This evaluation was made with 1-kg peanut samples, moisture contents being 7.1 and 10.5% wet basis (w.b.), placed in 3-liter glass containers. The peanut grains were ozonated at the concentration of 450 µg L -1 , at 25 and 35 ºC, with gas flow rates of 1.0 and 3.0 L min -1 . Time of saturation was determined by quantifying the residual concentration of ozone after the gas passed through the grains to constant mass. The decomposition kinetics of ozone was evaluated after the grain mass was ozone-saturated. For the peanut grains whose moisture content was 7.1% (w.b.), at 25 and 35ºC and with flow rates of 1.0 and 3.0 L min -1 , the values obtained for time of saturation of gaseous ozone ranged between 173 and 192 min; the concentration of saturation was approximately 260 µg L -1 . For the grains whose moisture content was 10.5% (w.b.), a higher residual concentration of gaseous ozone was obtained at 25 ºC, that of 190 µg L -1 . As regards the half-life of ozone, the highest value obtained was equivalent to 7.7 min for grains ozonated at 25 ºC, while for those with moisture content of 10.5% at 35 ºC, half-life was 3.2 min. In the process of ozone decomposition in peanut grains, temperature was concluded to be the key factor. An increase of 10 ºC in the temperature of the grains results in a decrease of at least 43% in the half-life of ozone.KEYWORDS: concentration of saturation, time of saturation, half-life. CINÉTICA DA DECOMPOSIÇÃO DO GÁS OZÔNIO EM AMENDOIMRESUMO: Este trabalho foi desenvolvido com o objetivo de avaliar a cinética de decomposição do ozônio em grãos de amendoim. Para avaliar a cinética de decomposição do gás, utilizaram-se amostras de 1 kg de amendoim, com teores de água de 7,1 e 10,5% base úmida (b.u.), acondicionadas em recipientes de vidro com capacidade de 3 L. Os grãos de amendoim foram ozonizados na concentração de 450 µg L -1 , nas temperaturas de 25 e 35 ºC, e vazões do gás de 1,0 e 3,0 L min -1 . Determinou-se o tempo de saturação, quantificando-se a concentração residual do ozônio após a passagem do gás pela massa de grãos, até que a mesma se mantivesse constante. A cinética de decomposição foi avaliada depois da saturação da massa de grãos com o gás. Nessa etapa, obteve-se a concentração residual do ozônio, depois de períodos de repouso, durante os quais o gás reagia no meio poroso, e dessa forma, era decomposto. Um modelo cinético de primeira ordem foi ajustado aos dados da concentração residual em função do tempo, após linearização. A partir dos valores da constante da taxa de decomposição, definida como a inclinação da reta referente ao modelo cinético de primeira ordem linearizado, foi possível obter a meia-vida do ozônio em grãos de amendoim. Para os grãos de amendoim com teor de água de 7,1% (b.u.), nas temperaturas de 25 e 35 °C, e vazões de 1,0 e 3,0 L min -1 , os valores obtidos de tempo de saturação do gás permaneceram na faixa entre 173 e 192 min, com concentração de s...

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“…(a) Doses and contamination levels: the gas application methodology can be efficient, in (a.1) a single or may need multiple O 3 doses; including (a.2) adjustments on its concentration according to the extent/intensity (load/level) of living organisms / toxic compounds to be destroyed, and/or the food group to be treated [42,43,[60][61][62][63]. [7,8,41].…”

Section: Ozone Gas Parameters For Food Decontamination Efficiencymentioning

confidence: 99%

“…Static or in motion -whether the gas is applied in static (inside ship containers or silos) food amount/quantity or in movement (conveyor transport belt / loading screw or during food storage load/unloading onto ship, train, container, truck). (d) State of food matrix: for raw (dry cereal / pulses / nuts / fruits -low humidity) or fresh (minimally processed vegetables sliced / chopped / peeled -high humidity) food, the application need attention on gas concentration and time adjustments [7,8,38,41,42,47,60,61,[64][65][66].…”

Section: Ozone Gas Parameters For Food Decontamination Efficiencymentioning

confidence: 99%

Effectiveness of Ozone Gas Application Methods against Combined Multi-Contaminants in Food

Christ¹,

Savi²,

Scussel³

2017

fph

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Despite the ozone (known as GRAS -generally recognized as safe) gas treatments published for each food living organism or chemical decontamination, they are not necessarily present or contaminate food individually. Most of the time, they are present all together. Therefore, the most important point, regarding an O 3 application method to be chosen is its effectiveness to all contaminants that may be in the target food. Therefore, ozone gas decontamination methods that gather combined multi-contaminants and their effectiveness in food were surveyed. Both, for inactivation of living organisms (insects, mites, fungi, yeasts and bacteria) and degradation of toxic compounds (pesticides and mycotoxins). They are the main need for an effective and comprehensive commercial decontamination application. This review brings details on O 3 formation energy sources, its application conditions (concentration / time of exposure), container characteristics (volume / material type / sealed or hermetic) and effectiveness for different food (type / contamination level / batch size/moisture content). From the studies and data reported, ozone has shown to be an efficient green agent for combined multi-decontamination, thus prolonging the food storage and shelf life. It does not cause/produce adverse effects on food quality.

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Aflatoxicosis in turkey poults is prevented by treatment of naturally contaminated corn with ozone generated by electrolysis

Cited by 97 publications

References 34 publications

Biological and Histopathological Evaluations of Using Ozone Gas in Decontamination of AflatoxinB1 in Wheat Grains

Biological and Histopathological Evaluations of Using Ozone Gas in Decontamination of AflatoxinB1 in Wheat Grains

Decomposition kinetics of gaseous ozone in peanuts

Effectiveness of Ozone Gas Application Methods against Combined Multi-Contaminants in Food

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