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Effect of electron beam irradiation on poultry meat safety and quality

Effect of electron beam irradiation on poultry meat safety and quality

Poultry science 81(6): 896-903

The purpose of this study was to determine the effectiveness of electron beam irradiation at doses of 1.0 and 1.8 kGy on the elimination of bacteria from boneless, skinless chicken breasts without significantly altering product quality. Microbial testing was conducted in triplicate using a whole carcass rinse method with each nonirradiated control group and an irradiation treatment group consisting of 10 samples. Results indicated that mean counts for coliforms, generic Escherichia coli, and psychrotrophs were 3.13, 3.26, and 1.92 log10 cfu/200 mL rinsate, respectively, in the control samples. However, these populations were not detected after the samples were irradiated with 1.0 or 1.8 kGy. Mean count of 4.60 log10 cfu/200 mL rinsate was detected for aerobic bacteria in the control samples. Irradiation doses of 1.0 and 1.8 kGy reduced the levels to 2.23 and 1.62 log10 cfu/200 mL rinsate, respectively. Irradiation also rendered the fillets free of Salmonella and Campylobacter. Consumer taste panels (product stored for 0, 14, and 28 d at 0 C) indicated that, at Day 0, there were no differences among controls and treatment groups for any of the quality attributes tested. At Day 14, texture and flavor attributes were lower for the irradiated groups. At Day 28, samples irradiated with 1.0 and 1.8 kGy were less desirable with decreased texture, flavor, and overall acceptability. Degree of lipid oxidation also increased as storage time and level of irradiation increased. Irradiated samples also had higher a* values, indicating they were pinker in color.

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Accession: 003727659

Download citation: RISBibTeXText

PMID: 12079059

DOI: 10.1093/ps/81.6.896

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