TY - GEN
T1 - Decontamination of unpackaged and vacuum-packaged boneless chicken breast with pulsed UV-liqht
AU - Keklik, Nene M.
AU - Demirci, Ali
AU - Puri, Virendra M.
PY - 2008
Y1 - 2008
N2 - The effectiveness of pulsed UV-light on the microbial load of unpackaged and packaged boneless chicken breast was investigated. Samples inoculated with Salmonella Typhimurium on the top surfaces were treated with pulsed UV-light for 5, 15, 30, 45, and 60 s at 5, 8, and 13 cm distance from the quartz window in pulsed UV-light chamber. Log reductions of S. Typhimurium on unpackaged samples ranged from 1.2 to 2.4 CFU/cm2 after 15-s treatment at 13 cm and 60-s treatment at 5 cm, respectively. Log reductions on vacuum-packaged samples ranged from 0.8 to 2.4 CFU/cm2 after 5-s treatment at 13 cm and 60-s treatment at 5 cm, respectively. The optimum treatment conditions for unpackaged and packaged samples were found to be at 5 cm for 15 s and at 5 cm for 30 s, respectively. The treatment of both unpackaged and packaged samples at optimum conditions resulted in around 2 log (∼99%) reduction. The energy and temperature levels were measured at each treatment condition. The effect of pulsed UV-light on the chemical and color quality of the samples was also evaluated. Unpackaged and packaged samples treated with pulsed UV-light at the mild (at 13 cm for 5s), moderate (at 8 cm for 30s), and extreme (at 5 cm for 60s) treatment conditions were analyzed for color and lipid peroxidation. The color and chemical quality of the samples did not show a significant difference (p>0.05) after mild and moderate treatments.
AB - The effectiveness of pulsed UV-light on the microbial load of unpackaged and packaged boneless chicken breast was investigated. Samples inoculated with Salmonella Typhimurium on the top surfaces were treated with pulsed UV-light for 5, 15, 30, 45, and 60 s at 5, 8, and 13 cm distance from the quartz window in pulsed UV-light chamber. Log reductions of S. Typhimurium on unpackaged samples ranged from 1.2 to 2.4 CFU/cm2 after 15-s treatment at 13 cm and 60-s treatment at 5 cm, respectively. Log reductions on vacuum-packaged samples ranged from 0.8 to 2.4 CFU/cm2 after 5-s treatment at 13 cm and 60-s treatment at 5 cm, respectively. The optimum treatment conditions for unpackaged and packaged samples were found to be at 5 cm for 15 s and at 5 cm for 30 s, respectively. The treatment of both unpackaged and packaged samples at optimum conditions resulted in around 2 log (∼99%) reduction. The energy and temperature levels were measured at each treatment condition. The effect of pulsed UV-light on the chemical and color quality of the samples was also evaluated. Unpackaged and packaged samples treated with pulsed UV-light at the mild (at 13 cm for 5s), moderate (at 8 cm for 30s), and extreme (at 5 cm for 60s) treatment conditions were analyzed for color and lipid peroxidation. The color and chemical quality of the samples did not show a significant difference (p>0.05) after mild and moderate treatments.
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M3 - Conference contribution
AN - SCOPUS:63249119782
SN - 9781605605364
T3 - American Society of Agricultural and Biological Engineers Annual International Meeting 2008, ASABE 2008
SP - 831
EP - 846
BT - American Society of Agricultural and Biological Engineers Annual International Meeting 2008, ASABE 2008
PB - American Society of Agricultural and Biological Engineers
T2 - American Society of Agricultural and Biological Engineers Annual International Meeting 2008
Y2 - 29 June 2008 through 2 July 2008
ER -