Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5792384 | Meat Science | 2013 | 8 Pages |
The objective of this study was to determine the effect the source of added nitrite and high hydrostatic pressure (HHP) had on the growth of Listeria monocytogenes on ready-to-eat (RTE) sliced ham. Use of 600Â MPa HHP for 3Â min resulted in an immediate 3.9-4.3Â log CFU/g reduction in L. monocytogenes numbers, while use of 400Â MPa HHP (3Â min) provided less than 1Â log CFU/g reduction. With the 600Â MPa HHP treatment, sliced ham with a conventional concentration of sodium nitrite (200Â ppm) was not different in L. monocytogenes growth from use with 50 or 100Â ppm of sodium nitrite in pre-converted celery powder. Instrumental color values as well as residual nitrite and residual nitrate concentrations for cured (sodium nitrite and nitrite from celery powder) and uncured ham formulations are discussed.
⺠Vegetable-sourced nitrite did not differ from conventional nitrite. ⺠High hydrostatic pressure (HHP) at 600 MPa reduced Listeria monocytogenes by 3 log. ⺠HHP at 400 MPa resulted in 1 log reduction and recovery of Listeria monocytogenes. ⺠HHP did not affect residual nitrite concentrations.