کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2091272 1081539 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Method for direct selection of potentially probiotic Bifidobacterium strains from human feces based on their acid-adaptation ability
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوتکنولوژی یا زیست‌فناوری
پیش نمایش صفحه اول مقاله
Method for direct selection of potentially probiotic Bifidobacterium strains from human feces based on their acid-adaptation ability
چکیده انگلیسی

A method for direct selection of acid-resistant Bifidobacterium strains was developed by prolonged exposure of human feces to homologous lethal stress conditions. The recovered strains were intrinsically resistant to acidic gastric conditions (pH 2.0) and also showed good tolerance to high concentrations of bile salts and NaCl. Bifidobacterium breve and Bifidobacterium adolescentis were, respectively, the infant- and adult-type bifidobacterial species showing the highest ability to develop an acid-tolerant phenotype. Therefore, this procedure could be applicable to the direct selection of Bifidobacterium strains with improved stability in adverse environments and, probably, contribute to expand the spectra of probiotic species of human origin currently marketed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Microbiological Methods - Volume 66, Issue 3, September 2006, Pages 560–563
نویسندگان
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