Steam Decontamination of Whole and Cut-Up Raw Chicken

Davidson, Charles; D'aoust, J.-Y.; Allewell, W.

doi:10.3382/ps.0640765

Cited by 18 publications

(4 citation statements)

References 13 publications

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“…Although the results were significantly different from the controls, exposure of samples at 93.3ЊC for 6 s resulted in marginal (1.0 to 1.3 log CFU/cm 2 ) reductions. Moderate reductions (1.6 to 1.8 (5) reported a 50% decrease in the incidence of Salmonella on whole and cut-up chicken pieces treated with a continuous flow of steam for 20 s. Salmonella contamination was reduced by steam treatment to undetectable levels on freshly slaughtered beef (treatment of 90.5 to 94.0ЊC for 6 or 8 s) (11) and on freshly slaughtered pork (steam continuously sprayed on the carcass surface for 30 s) (1).…”

Section: Resultsmentioning

confidence: 99%

Effectiveness of a Laboratory-Scale Vertical Tower Static Chamber Steam Pasteurization Unit against Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria innocua on Prerigor Beef Tissue

Retzlaff

Phebus

Nutsch

et al. 2004

Journal of Food Protection

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A laboratory-scale vertical tower steam pasteurization unit was evaluated to determine the antimicrobial effectiveness of different exposure times (0, 3, 6, 12, and 15 s) and steam chamber temperatures (82.2, 87.8, 93.3, and 98.9 degrees C) against pathogens (Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria innocua) inoculated onto prerigor beef tissue. Samples were collected and microbiologically analyzed immediately before and after steam treatment to quantify the effectiveness of each time-temperature combination. The 0-s exposure at all chamber temperatures (cold water spray only, no steam treatment) was the experimental control and provided < or = 0.3 log CFU/cm2 reductions. Chamber temperatures of 82.2 and 87.8 degrees C were ineffective (P > 0.05) at all exposure times. At 93.3 degrees C, significant reductions (> 1.0 log CFU/cm2) were observed at exposure times of > or = 6 s, with 15 s providing approximately 1 log cycle greater reductions than 12 s of exposure. The 98.9 degrees C treatment was consistently the most effective, with exposure times of > or = 9 s resulting in >3.5 log CFU/cm2 reductions for all pathogens.

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Section: Resultsmentioning

confidence: 99%

Effectiveness of a Laboratory-Scale Vertical Tower Static Chamber Steam Pasteurization Unit against Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria innocua on Prerigor Beef Tissue

Retzlaff

Phebus

Nutsch

et al. 2004

Journal of Food Protection

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“…The main problem in applying steam decontamination to poultry carcasses is ensuring even treatment of the whole carcass, especially the internal cavity (Klose et al . 1971; Davidson et al . 1985).…”

Section: Methods Of Decontaminating Raw Poultrymentioning

confidence: 99%

Poultry as a source of Campylobacter and related organisms

2001

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“…Importantly, the open nature of drains means that they are continuously challenged by a wide range of microbes, which vary depending on the site of the drain. In the kitchen, a variety of normal domestic wastes will pass through the drain conduit, especially where waste disposal units are fitted, along with residues from high-risk infectious materials, such as uncooked meat (12) and vegetable waste (15). Additionally, potential pathogens, including pseudomonads and Legionella pneumophila, may also enter the drain through tap water (6,20,27).…”

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confidence: 99%

Microbial Characterization of Biofilms in Domestic Drains and the Establishment of Stable Biofilm Microcosms

McBain

Bartolo

Catrenich

et al. 2003

Appl Environ Microbiol

137

111

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We have used heterotrophic plate counts, together with live-dead direct staining and denaturing gradient gel electrophoresis (DGGE), to characterize the eubacterial communities that had formed as biofilms within domestic sink drain outlets. Laboratory microcosms of these environments were established using excised biofilms from two separate drain biofilm samples to inoculate constant-depth film fermentors (CDFFs). Drain biofilms harbored 9.8 to 11.3 log 10 cells of viable enteric species and pseudomonads/g, while CDFF-grown biofilms harbored 10.6 to 11.4 log 10 cells/g. Since live-dead direct staining revealed various efficiencies of recovery by culture, samples were analyzed by DGGE, utilizing primers specific for the V2-V3 region of eubacterial 16S rDNA. These analyses showed that the major PCR amplicons from in situ material were represented in the microcosms and maintained there over extended periods. Sequencing of amplicons resolved by DGGE revealed that the biofilms were dominated by a small number of genera, which were also isolated by culture. One drain sample harbored the protozoan Colpoda maupasi, together with rhabtidid nematodes and bdelloid rotifers. The microcosm enables the maintenance of stable drain-type bacterial communities and represents a useful tool for the modeling of this ecosystem.Clinical epidemiologists have long recognized the potential of sink drains in hospital wards to harbor pathogens. Several studies have identified sink drains within medical-surgical intensive-care wards (19,22,30,35) and cystic fibrosis units (24) as possible sources of infection. Despite the increased information relating to the occurrence of bacterial biofilms and their reported involvement in the biofouling of domestic drains (7), there are few reports in the literature concerning the ecology and microbiology of this environment. The persistence (1) and significance (10) of biofilms in virtually all environments is widely acknowledged. Studies in the home (14, 34) have identified the potential health risks of microbial contamination. Scott et al. (34) identified possible pathogens in the kitchen, toilet, and bathrooms in Ͼ200 homes in the United Kingdom. More recent studies (3,8,9) have demonstrated that homes represent an environment into which bacterial, viral, and fungal pathogens are continuously introduced in association with food, people, and pets. Studies by Cogan et al. (8,9) showed that detergent-based cleaning was relatively ineffective in controlling the spread of salmonella and campylobacter to kitchen surfaces during the preparation of contaminated poultry. Despite such concerns, there have been few investigations into the bacterial composition of biofilms within domestic sink drains. As with hospital drains, the pipe work presents a variety of solid surfaces that are suitable substrates for biofilm formation (7, 26). Biofilm has been implicated in a high proportion of slow-running drains in the United States (7). Domestic drains are subject to intermittent wetting, periodic feeding with a plet...

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Steam Decontamination of Whole and Cut-Up Raw Chicken

Cited by 18 publications

References 13 publications

Effectiveness of a Laboratory-Scale Vertical Tower Static Chamber Steam Pasteurization Unit against Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria innocua on Prerigor Beef Tissue

Effectiveness of a Laboratory-Scale Vertical Tower Static Chamber Steam Pasteurization Unit against Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria innocua on Prerigor Beef Tissue

Poultry as a source of Campylobacter and related organisms

Microbial Characterization of Biofilms in Domestic Drains and the Establishment of Stable Biofilm Microcosms

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