期刊
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
卷 190, 期 -, 页码 66-71出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijfoodmicro.2014.08.021
关键词
Microbial succession; Grass carp; Storage; Biogenic amines' formation
资金
- earmarked fund for China Agriculture Research System [CARS-46]
- National Natural Science Foundation of China [31471683]
Investigation on the microbial succession of grass carp filets during storage at 4 degrees C was carried out, For identification, 16S rRNA genes of the isolated pure strains were sequenced and analyzed. Acinetobacter was dominant in fresh grass carp. Species from the genera Brevundimonas, Empedobacter, Pseudomonas, Microbacterium, Flavobacterium, Moraxella, Shewanella and Soonwooa were also detected at the initial day. The communities were dominated by Aeromonas and Acinetobacter after 6 days. Aeromonas followed by Pseudomonas was the predominant genera at the end of shelf-life of grass carp, while other genera such as Shewanella, Acinetobacter, Flavobacteriaceae and Psychrobacter were present in smaller numbers. We investigated biogenic amines' (BAs) production by six strains isolated from spoiled grass carp filets. Shewanella putrefaciens showed significantly higher abilities to produce putrescine, than those from other genera. Aeromonas veronii revealed a strong ability to produce putrescine and cadaverine. However, Pseudomonas and Acinetobacter showed little ability to produce BAs. (C) 2014 Elsevier B.V. All rights reserved.
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