کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2063645 1076703 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Description of a new species, Bifidobacterium crudilactis sp. nov., isolated from raw milk and raw milk cheeses
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Description of a new species, Bifidobacterium crudilactis sp. nov., isolated from raw milk and raw milk cheeses
چکیده انگلیسی

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 °C. A strong similarity of 16S rRNA sequences (99.8%) was shown between strain FR62/b/3T and Bifidobacterium psychraerophilum LMG 21775T. 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 °C) and strain FR62/b/3T 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/3T is 56.4 mol%.Therefore, the name Bifidobacterium crudilactis sp. nov. is proposed, with its type strain being FR62/b/3T (=LMG 23609T=CNCM I-3342T).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Systematic and Applied Microbiology - Volume 30, Issue 5, 30 July 2007, Pages 381–389
نویسندگان
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