Type |
Article |
Date |
2010 |
Language |
English |
Author(s) |
Fall Papa-Abdoulaye2, Leroi Francoise2, Chevalier Frederique 2, Guerin Charline2, Pilet Marie-France1, 2 |
Affiliation(s) |
1 : ONIRIS, UMR INRA Secalim 1014, F-44322 Nantes, France. 2 : IFREMER, Lab Sci & Technol Biomasse Marine, Nantes, France. |
Source |
Journal Of Aquatic Food Product Technology (1049-8850) (Haworth Press Inc), 2010 , Vol. 19 , N. 2 , P. 84-92 |
DOI |
10.1080/10498850.2010.486910 |
WOS© Times Cited |
23 |
Keyword(s) |
inhibition, biopreservation, challenge-test, lactic acid, nutritional competition |
Abstract |
The protective activity of a non-bacteriocinogenic Lactococcus piscium CNCM I-4031 strain against Listeria monocytogenes was investigated in tropical cooked peeled shrimp stored at 8°C in modified atmosphere packaging (50% N2-50% CO2). When inoculated alone (L. piscium 107 CFU g-1 and L. monocytogenes 104 CFU g-1), protective culture and target strain grew very well on shrimp reaching a maximum cell number of 109 CFU g-1 after 7 and 14 days, respectively. In the presence of L. piscium, growth of L. monocytogenes was totally prevented after 3 days of storage. The count was 3.4 log CFU g-1 lower than in the control after 10 days and until the end of storage (31 days). Using the Seafood Spoilage and Safety Predictor Software (http://sssp.dtuaqua.dk), it was shown that pH decrease from 6.58 to 5.94 and lactic acid concentration of 89.65 mM measured in the co-inoculated batch did not fully explain the inhibition observed. |
Full Text |
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10 |
99 KB |
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10 |
221 KB |
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