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Marine Pseudoalteromonas sp. Composes Most of the Bacterial Population Developed in Oysters ( Tiostrea chilensis ) Spoiled During Storage
Author(s) -
Romero J.,
González N.,
Espejo R.T.
Publication year - 2002
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.2002.tb09544.x
Subject(s) - oyster , biology , food spoilage , pseudoalteromonas , bacteria , population , microbiology and biotechnology , food science , 16s ribosomal rna , ecology , genetics , demography , sociology
ABSTRACT: To identify bacteria associated with spoilage in oysters, changes in both the load and composition of the bacterial community occurring in storage were followed. Oyster spoilage was accompanied by a 100‐fold increase in the number of CFU. Molecular analysis revealed that a large proportion of the bacteria present in spoiled oysters possessed an intergenic 16S‐23S rDNA spacer of approximately 400 bp. A spacer with the same size was also found in spoiled oysters of different origin and dates of harvest. The bacterial strains containing this spacer may constitute a common cause of the oyster spoilage. These strains were salt‐dependent marine Pseudoalteromonas species and were probably present in oysters before harvest.