ORBi: Delcenserie Véronique - Description of a new species, Bifidobacterium crudilactis sp. nov., isolated from raw milk and raw milk cheeses.

Reference : Description of a new species, Bifidobacterium crudilactis sp. nov., isolated from raw mi...


	Document type :	Scientific journals : Article
	Discipline(s) :	Life sciences : Food science Life sciences : Microbiology
	To cite this reference:	http://hdl.handle.net/2268/392
	Discipline :	Life sciences : Biotechnology

Title :	Description of a new species, Bifidobacterium crudilactis sp. nov., isolated from raw milk and raw milk cheeses.
Language :	English
Author, co-author :	Delcenserie, Véronique [Université de Liège - ULg > Département de sciences des denrées alimentaires > Gestion de la qualité dans la chaîne alimentaire]
	Gavini, Françoise [Institut National de la Recherche Agronomique > > Laboratoire de Génie des Procédés et Technologie Alimentaires > >]
	Beerens, Henri [Centre d’Enseignement et de Recherche en Microbiologie Pharmaceutique, Lille > > > >]
	Tresse, O. [Institut National de la Recherche Agronomique > > Laboratoire de Génie des Procédés > >]
	Franssen, Christine [Université de Liège - ULg > Sciences des denrées alimentaires > Microbiologie des denrées alimentaires > >]
	Daube, Georges [Université de Liège - ULg > Département de sciences des denrées alimentaires > Microbiologie des denrées alimentaires >]
Publication date :	2007
Journal title :	Systematic & Applied Microbiology
Publisher :	Elsevier GmbH, Urban & Fischer Verlag
Volume :	30
Issue/season :	5
Pages :	381-9
Audience :	International
ISSN :	0723-2020
City :	Jena
Country :	Germany
Keywords :	[en] Animals ; Bacterial Typing Techniques ; Bifidobacterium/classification/genetics/growth & development/isolation & purification ; Cheese/microbiology ; DNA, Bacterial/analysis ; DNA, Ribosomal/analysis ; Milk/microbiology ; Molecular Sequence Data ; Nucleic Acid Hybridization/methods ; RNA, Ribosomal, 16S/analysis/genetics ; 16S rRNA ; raw milk cheeses ; Bifidobacterium psychraerophilum ; Bifidobacterium crudilactis
Abstract :	[en] A new Bifidobacterium species is described based on the study of ten Gram-positive strains with fructose-6-phosphate phosphoketolase activity. They are part of a phenotypic group comprising 141 strains isolated from raw milk and raw milk cheeses in French raw milk cheese factories. This group was separated by a numerical analysis based on API 50CH, API 32A tests and growth at 46 degrees C. A strong similarity of 16S rRNA sequences (99.8%) was shown between strain FR62/b/3(T) and Bifidobacterium psychraerophilum LMG 21775(T). However, low DNA-DNA relatedness was observed between their DNAs (31%). The new isolates are able to grow at low temperatures (all ten strains up to 5 degrees C) and strain FR62/b/3(T) grows under aerobic conditions, as does B. psychraerophilum. However, contrary to B. psychraerophilum, they do not ferment L-arabinose, D-xylose, arbutin or melezitose, but they do acidify lactose. The DNA G+C content of FR62/b/3(T) is 56.4mol%. Therefore, the name Bifidobacterium crudilactis sp. nov. is proposed, with its type strain being FR62/b/3(T) (=LMG 23609(T)=CNCM I-3342(T)).
Funders :	Commission européenne : Direction générale de la Recherche
Name of the research project :	BIFID
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/392
	also: http://hdl.handle.net/2268/111750
DOI :	10.1016/j.syapm.2007.01.004

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