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Probiotic characteristics of Bifidobacterium infantis isolated in Vietnam

Published 06/28/2022

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How to Cite
Bach Thi Nhu Quynh, Ninh Thi Tuyet Lan, Nguyen Thi Minh Huyen, Do Thi Men, Pham Thi Le, Mai Thi Dam Linh. "Probiotic characteristics of Bifidobacterium infantis isolated in Vietnam". Vietnam Journal of Food Control. vol. 5, no. 2 (en), pp. 140-150, 2022

Main Article Content


Bifidobacterium is anerobic bacterium which is popular in human and animal intestine. B. infantis was successfully isolated from a new-born child’s fecal sample previously. In this study, the probiotic characteristics of this strain such as: extracellular enzyme production ability; antibiotic activity against food-born pathogen like E. coli, S. aureus; organic acid production and bile-salt sufferance were evaluated. The results showed that the isolated can produce amylase and protease enzyme, do not produce cellulase enzyme; the organic acids also were produced during development of bacterium. The bacterium can against E. coli and S. aureus and can grow in the media containing up to 1% of bile salt. Results of this study are the basis for further studies to apply these bacteria as a source of probiotic beneficial to human health in Vietnam.


Bifidobacterium infantis, probiotic, E. coli, exoenzymes, antibiotic activity.


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