Abstract:
:Effectiveness of combined steam (10 and 60 s, 70 degrees C and 98 degrees C) and chemical treatments, using concentrated solutions of lactic acid (1 and 30 min, 5% and 10% lactic acid), on the inactivation of Listeria innocua inoculated on the surface of chicken skins have been studied. Surviving bacteria on the skin were enumerated immediately after treatment, and after 7 days of storage at 4 degrees C. The most effective treatment was the combination of steam of 98 degrees C and 10% lactic acid with its immediate efficacy being mainly attributed to the applied heat treatment. However, after 7-day storage, the treatment's effectiveness was mainly due to the applied acid treatment, which prevented growth of the bacteria that survived the heat treatment. Milder treatments (70 degrees C steam, 5% lactic acid) revealed a genuine synergy between the heat and acid treatments, paving the way for an effective means of reducing bacterial load on the surface of poultry without affecting the product's "raw" appearance.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Lecompte JY,Kondjoyan A,Sarter S,Portanguen S,Collignan Adoi
10.1016/j.ijfoodmicro.2008.06.033subject
Has Abstractpub_date
2008-09-30 00:00:00pages
155-61issue
1-2eissn
0168-1605issn
1879-3460pii
S0168-1605(08)00370-Xjournal_volume
127pub_type
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