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Investigation of probiotic properties of lactobacilli bacteria isolated from human gastrointestinal tract     
Yazarlar
Tulumoğlu Şener
Ergin Kariptaş
Ahi Evran Üniversitesi, Türkiye
Prof. Dr. Belgin ERDEM
Ahi Evran Üniversitesi, Türkiye
Önder İdil
Amasya Üniversitesi, Türkiye
Ataç Bersoy Emel
Özet
In this study, the probiotic characteristics of Lactobacillus which were taken from the stool samples of 30 children, aged between 5 and 15 years, were studied. The stomach medium (low pH) and bile salt tolerance, bile salt hydrolysis activity, antagonistic activity and cholesterol assimilation quantity of Lactobacillus strains were determined It was defined that on the whole Lactobacillus strains were resistant to high acidity (pH 2 0-2 5) and sensitive to high levels of bile salt (% 1.00 Oxgall), there was no bile salt hydrolysis activity, they were resistant to vancomycin, teicoplanin and bacitracin and had antagonistic effects on pathogenic bacteria It was noted that only L curvatus L26 strain, which produced bacteriocm, had a general antagonistic effect, was indulgent to gastric acid and bile salt, and in different bile salt medium assimilated cholesterol at a high degree (15 22-25 42 μg/ml) At the same time, the fact that L curvatus L26 had β-glucuronidase digesting prebiotics and β-galactosidase digesting lactose is one of its most significant probiotic properties In the light of this information, our opinion is that L curvatus L26 can involve potential probiotic characteristics.
Anahtar Kelimeler
Gastrointestinal tract | Lactobacillus | Probiotic
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Arch. Für Lebensmittelhyg.
Dergi ISSN 0003-925X
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 12-2014
Cilt No 65
Sayı 6
Sayfalar 151 / 163
Doi Numarası 10.2376/0003-925X-65-151