Reference : Description of two Enterococcus strains isolated from traditional Peruvian artisanal-pro...
Scientific journals : Article
Life sciences : Microbiology
http://hdl.handle.net/2268/22880
Description of two Enterococcus strains isolated from traditional Peruvian artisanal-produced cheeses with a bacteriocin-like inhibitory activity
English
Aguilar Galvez, Ana Consuelo [Université de Liège - ULg > > > Doct. sc. agro. & ingé. biol.]
Dubois Dauphin, Robin [Université de Liège - ULg > > Gembloux Agro-Bio Tech >]
Ghalfi, Hakim [> >]
Campos Gutiérrez, David Carlos [Universidad Nacional Agraria La Molina > > Instituto de Biotecnología > >]
Thonart, Philippe mailto [Université de Liège - ULg > > Gembloux Agro-Bio Tech - Biochimie et microbiologie industrielles >]
2009
Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE]
Presses Agronomiques de Gembloux
13
3
349-356
Yes (verified by ORBi)
National
1370-6233
Gembloux
Belgique
[en] Bacteriocin-like substances ; Listeria monocytogenes ; Enterococcus spp. ; Peruvian traditional cheese
[en] The aim of this work was to isolate and to characterize strains of lactic acid bacteria (LAB) with bacteriocin-like inhibitory activity from 27 traditional cheeses artisanal-produced obtained from different Peruvian regions. Twenty Gram+ and catalasenegative strains among 2,277 isolates exhibited bacteriocin-like inhibitory activity against Listeria monocytogenes CWBIB2232 as target strain. No change in inhibitory activity was observed after organic acid neutralization and treatment with catalase of the cell-free supernatant (CFS). The proteinic nature of the antimicrobial activity was confirmed for the twenty LAB strains by proteolytic digestion of the CFS. Two strains, CWBI-B1431 and CWBI-B1430, with the best antimicrobial activity were selected for further researches. These strains were taxonomically identified by phenotypic and genotypic analyses as Enterococcus mundtii (CWBI-B1431) and Enterococcus faecium (CWBI-B1430). The two strains were sensitive to vancomycin (MIC < 2 μg.ml-1) and showed absence of haemolysis.
http://hdl.handle.net/2268/22880

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
aguilar BASE 2009.pdfPublisher postprint166.75 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.