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Int J Food Microbiol. 1991 Nov;14(2):111-7.

Growth of Listeria monocytogenes in vacuum-packed, smoked salmon, during storage at 4 degrees C.

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Department of Food Hygiene, Norwegian College of Veterinary Medicine, Oslo.


Samples of smoked salmon of different hygienic quality were inoculated with low (6 cfu/g) and high (600 cfu/g) levels of a mixture of three strains of Listeria monocytogenes, after which they were vacuum-packed and stored at 4 degrees C for up to 5 weeks. L. monocytogenes grew well during storage in all the inoculated sample groups. Growth was, however, slightly faster in the fish with the better hygienic quality. The smoked salmon was still sensorically acceptable after 4 weeks. All three strains were found after 4 weeks in the fish with the better quality, while only two strains were recovered after the same time from the poorer quality salmon.

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