Effect of radiation processing as an integral part of the safe recycling animal waste

Farag, M. Diaa El-Din H.; Mohamed, F. A.

doi:10.1016/s0377-8401(98)00252-1

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…Moreover, the process assures decontamination with little change in proximate composition, which is in agreement with Farag et al (1999). Thus, irradiation could be used to hygienize poultry viscera before utilizing it for the preparation of value added products such as protein hydrolysates, proteolytic enzymes, and lipids with minimum risk of spreading pathogenic organisms.…”

Section: Discussionsupporting

confidence: 52%

Radiation decontamination of poultry viscera

Jamdar

Harikumar

2008

Radiation Physics and Chemistry

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Section: Discussionsupporting

confidence: 52%

Radiation decontamination of poultry viscera

Jamdar

Harikumar

2008

Radiation Physics and Chemistry

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“…Manure can contain numerous pathogenic organisms that are associated with human diseases including salmonella, E. coli O157:H7, Yesinia , campylobacter , guardia , and cryptosporidium ( Klein et al 2010 ; Létourneau et al 2010 ; Massé et al 2010 ; Ziemer et al 2010 ). Treating manure before land application can greatly reduce the number of viable pathogens, and various methods such as drying ( Amin-Nayyeri et al 2010 ), composting ( Maeda et al 2010 ), heat treatment ( Shepherd Jr et al 2010 ), radiation treatment ( Farag and Mohamed 1999 ; Sinton et al 2007 ), aerobic digestion ( Bortone 2009 ; Dumas et al 2010 ; Shen et al 2010 ), and anaerobic digestion ( Aitken et al 2005 ; Aitken et al 2007 ; Lang and Smith 2008 ; Popat et al 2010 ; Sung and Santha 2003 ; Wagner et al 2009 ) are typically used. Of these, anaerobic digestion is crucial as it produces biogas, a source of energy, in addition to reducing pathogens.…”

Section: Introductionmentioning

confidence: 99%

Escherichia coli inactivation kinetics in anaerobic digestion of dairy manure under moderate, mesophilic and thermophilic temperatures

Pandey

Soupir

2011

AMB Express

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Batch anaerobic digestion experiments using dairy manure as feedstocks were performed at moderate (25°C), mesophilic (37°C), and thermophilic (52.5°C) temperatures to understand E. coli, an indicator organism for pathogens, inactivation in dairy manure. Incubation periods at 25, 37, and 52.5°C, were 61, 41, and 28 days respectively. Results were used to develop models for predicting E. coli inactivation and survival in anaerobic digestion. For modeling we used the decay of E. coli at each temperature to calculate the first-order inactivation rate coefficients, and these rates were used to formulate the time - temperature - E. coli survival relationships. We found the inactivation rate coefficient at 52.5°C was 17 and 15 times larger than the inactivation rate coefficients at 25 and 37°C, respectively. Decimal reduction times (D10; time to achieve one log removal) at 25, 37, and 52.5°C, were 9 -10, 7 - 8 days, and < 1 day, respectively. The Arrhenius correlation between inactivation rate coefficients and temperatures over the range 25 -52.5°C was developed to understand the impacts of temperature on E. coli inactivation rate. Using this correlation, the time - temperature - E. coli survival relationships were derived. Besides E. coli inactivation, impacts of temperature on biogas production, methane content, pH change, ORP, and solid reduction were also studied. At higher temperatures, biogas production and methane content was greater than that at low temperatures. While at thermophilic temperature pH was increased, at mesophilic and moderate temperatures pH were reduced over the incubation period. These results can be used to understand pathogen inactivation during anaerobic digestion of dairy manure, and impacts of temperatures on performance of anaerobic digesters treating dairy manure.

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Dairy Waste Management: Treatment Methods and Potential Uses of Treated Waste

Arvanitoyannis¹,

Kassaveti²

2008

Waste Management for the Food Industries

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Effect of radiation processing as an integral part of the safe recycling animal waste

Cited by 4 publications

References 16 publications

Radiation decontamination of poultry viscera

Radiation decontamination of poultry viscera

Escherichia coli inactivation kinetics in anaerobic digestion of dairy manure under moderate, mesophilic and thermophilic temperatures

Dairy Waste Management: Treatment Methods and Potential Uses of Treated Waste

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