دورية
Nisin and ALTATM 2341 inhibit the growth of Listeria monocytogeneson smoked salmon packaged under vacuum or 100% CO2
| العنوان: | Nisin and ALTATM 2341 inhibit the growth of Listeria monocytogeneson smoked salmon packaged under vacuum or 100% CO2 |
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| المؤلفون: | Szabo, E. A., Cahill, M. E. |
| المصدر: | Letters in Applied Microbiology; May 1999, Vol. 28 Issue: 5 p373-377, 5p |
| مستخلص: | The effects of nisin and ALTATM 2341 on the growth of Listeria monocytogeneswere assessed on smoked salmon packaged under vacuum or 100% CO2. Smoked salmon slices (pH 6·3) were inoculated with a cocktail of seven L. monocytogenesisolates at a level of approximately 2·5 log10colony forming units (cfu) g−1. After inoculation, the surface of the smoked salmon slices was treated with either nisin (400 or 1250 IU g−1) or ALTATM 2341 (0·1 or 1%). The smoked salmon was packaged and stored at 4 °C (28 d) or 10 °C (9 d). On untreated vacuum‐packaged smoked salmon, L. monocytogenesgrew by 3·8 log10cfu g−1at 4 °C and 5·1 log10cfu g−1at 10 °C. Growth was reduced on nisin‐ and ALTATM 2341‐treated vacuum‐packaged smoked salmon. On the nisin‐treated samples, L. monocytogenesincreased by 2·5 (400 IU g−1) and 1·5 (1250 IU g−1) log10cfu g−1at 4 °C, and by 4·3 (400 IU g−1) and 2·7 (1250 IU g−1) log10cfu g−1at 10 °C. With the ALTATM 2341‐treated samples, L. monocytogenesincreased by 2·8 (0·1%) or 1·6 (1·0%) log10cfu g−1at 4 °C, and 3·3 (0·1%) or 3·6 (1·0%) log10cfu g−1at 10 °C. The growth of L. monocytogeneswas retarded by packaging the smoked salmon in 100% CO2. On untreated smoked salmon, only a 0·8 log10cycle increase was observed at 10 °C. Under all the other conditions tested with 100% CO2, L. monocytogeneswas detected but growth was prevented. |
| قاعدة البيانات: | Supplemental Index |
Full Text Finder | تدمد: | 02668254 1472765X |
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| DOI: | 10.1046/j.1365-2672.1999.00547.x |