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Stabilization of duck fatty liver by high pressure treatment. Inactivation of Enterococcus faecalis

, : Stabilization of duck fatty liver by high pressure treatment. Inactivation of Enterococcus faecalis. Sciences des Aliments 21(1): 71-76

The effects of combined high pressure (350, 550 MPa) and reduced temperature (55, 65degreeC) treatments for 10, 20, 30 min, on the total aerobic mesophilic flora (TAMF) of duck fatty liver, were compared with those on inoculated Enterococcus faecalis flora. Results were compared with those obtained from a traditional pasteurization. Seven decimal reductions of the TAMF and of Enterococcus faecalis were obtained at 55degreeC, 550 MPa for at least 20 min. Nevertheless, the natural TAMF appears more resistant to the pressure than the Enterococcus faecalis especially at 350 MPa.


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