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The use of gaseous ozone and gas packaging to control populations of Salmonella infantis and Pseudomonas aeruginosa on the skin of chicken portions

Al-Haddad, K.S.H., Al-Qassemi, R.A.S. and Robinson, R.K. (2005) The use of gaseous ozone and gas packaging to control populations of Salmonella infantis and Pseudomonas aeruginosa on the skin of chicken portions. Food Control, 16 (5). pp. 405-410. ISSN 0956-7135

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To link to this item DOI: 10.1016/j.foodcont.2004.04.009

Abstract/Summary

Chilled breasts of chicken were inoculated with Salmonella infantis or Pseudomonas aeruginosa and then given one of the following treatments: (i) exposure to gaseous ozone (>2000 ppm for up to 30 min); (ii) storage under 70% CO2:30% N-2; and (iii) exposure to gaseous ozone (>2000 ppm for 15 min) followed by storage under 70% CO2:30% N-2; all storage at 7degreesC. Gaseous ozone reduced the counts of samnonellae by 97(Y,, and pseudomonads by 95%, but indigenous coliforms were unaffected. Under the modified atmosphere, the cell count of S. infantis was reduced by 72% following initial exposure and then stabilised, coliforms grew, but Ps. aeruginosa behaved like S. infantis-initial reduction (58%) followed by stability. Exposure to gaseous ozone followed by gas packaging allowed survival of S. infantis, Ps. aeruginosa and coliforms over 9 days at 7degreesC, but there was no evidence of any sensory deterioration. It is proposed that the latter treatment could, in a modified form perhaps, be used to reduce the contamination of chicken carcasses with salmonellae and improve their shelf-life. (C) 2004 Elsevier Ltd. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
ID Code:13598
Uncontrolled Keywords:Salmonella infantis, Pseudomonas aeruginosa, modified atmospbere, packaging (MAP), ozone, poultry, MODIFIED-ATMOSPHERE, SHELF-LIFE, CARCASSES, MEAT, DECONTAMINATION, CAMPYLOBACTER, SPOILAGE, FUTURE, GROWTH

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