Journal
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
Volume 64, Issue 3, Pages 355-360Publisher
ELSEVIER
DOI: 10.1016/S0168-1605(00)00486-4
Keywords
herring; spoilage; Lactobacillus alimentarius
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Spoilage characterised by bulging of lids and gas formation affected various product lots of different marinated herring types. Microbiological analyses resulted in growth on MRS and Rogosa SL agar. Altogether 206 randomly selected colonies from two unspoiled and ten spoiled samples were characterised using phenotypical key tests and a 16 + 23S rRNA gene-based RFLP identification database. L. alimentarius was found to be the specific spoilage organism in all samples. All isolates obtained Rom the different product types were of the same clonal type. The slight rise in pH value together with marked gas production suggested a rare lactic acid bacteria spoilage type called 'protein swell'. L. alimentarius has not been previously associated with herring spoilage. (C) 2001 Elsevier Science B.V. All rights reserved.
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