We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Quorum Sensing Activity of Hafnia alvei Isolated from Packed Food.
- Authors
Jia-Yi Tan; Wai-Fong Yin; Kok-Gan Chan
- Abstract
Quorum sensing (QS) is a mechanism adopted by bacteria to regulate expression of genes according to population density. N-acylhomoserine lactones (AHLs) are a type of QS signalling molecules commonly found in Gram-negative bacteria which have been reported to play a role in microbial spoilage of foods and pathogenesis. In this study, we isolated an AHL-producing Hafnia alvei strain (FB1) from spherical fish pastes. Analysis via high resolution triple quadrupole liquid chromatography/mass spectrometry (LC/MS) on extracts from the spent supernatant of H. alvei FB1 revealed the existence of two short chain AHLs: N-(3-oxohexanoyl) homoserine lactone (3-oxo-C6-HSL) and N-(3-oxo- octanoyl) homoserine lactone (3-oxo-C8-HSL). To our knowledge, this is the first report of the production of AHLs, especially 3-oxo-C8-HSL, by H. alvei.
- Subjects
FOOD spoilage; QUORUM sensing; FOOD safety; MASS spectrometry; FOOD microbiology
- Publication
Sensors (14248220), 2014, Vol 14, Issue 4, p6788
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s140406788