کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4369158 1616737 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Possible involvement of psychrotolerant Enterobacteriaceae in blown pack spoilage of vacuum-packaged raw meats
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Possible involvement of psychrotolerant Enterobacteriaceae in blown pack spoilage of vacuum-packaged raw meats
چکیده انگلیسی

Recent investigations of blown pack spoilage in New Zealand chilled vacuum-packaged meats have found moderate to high numbers of Enterobacteriaceae in the spoilage flora, but no clostridia, such as C. estertheticum and C. gasigenes, that are usually associated with blown pack spoilage. This study showed that pyschrotolerant Enterobacteriaceae produced gas in a lamb homogenate model under anaerobic conditions and that these organisms could cause blown pack spoilage of vacuum-packaged chilled meats. Significant gas production was observed with the majority of the psychrotolerant Enterobacteriaceae strains tested including presumptive species of Enterobacter, Serratia, Hafnia and Rahnella. However, no gas was produced in lamb homogenates inoculated with presumptive species of Ewingella americana or Yersinia enterocolitica. Gas production was also confirmed in vacuum-packaged lamb shoulders stored at 4 °C for 21 days after being inoculated with individual representative Enterobacteriaceae isolates. Biochemical characterisation proved to be more useful than genotype-based typing of 16S rRNA genes for discriminating different psychrotolerant Enterobacteriaceae from naturally contaminated meat microflora.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Food Microbiology - Volume 119, Issue 3, 1 November 2007, Pages 334–339
نویسندگان
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