Selection of Potential Probiotic Strains Isolated from Human Intestinal Tract and Traditional Ferment Milk
Chaohui Xue, Chun Yue, Xueguo Liu, Le Yuan
Available Online July 2016.
- https://doi.org/10.2991/bbe-16.2016.63How to use a DOI?
- Lactobacillus rhamnosus, Salmonella, Diarrhoea, Low pH, Bile salts.
- Diarrhea is the main reason of human deaths in developing countries, which also cause world-wide infant mortality. Diarrhoea occurs world-wide and causes 4% of all deaths and 5% of health loss to disability. It is most commonly caused by gastrointestinal infections which kill around 1.5 million people globally each year, mostly children in developing countries. In this study, five selected Lactobacillus isolated from human intestinal and ferment milk were preliminarily identified by 16S rDNA gene sequencing and assessed the ability to inhibit the infection of enteropathogens. The Lactobacillus strains were screened on the basis of probiotic characteristics (i.e., resistance to low pH and bile salts, adhesion to the human gastrointestinal tract, inhibition of pathogenic strains). Using an in vitro system simulating gastric transit, our findings indicated that the probiotic strains had the ability to tolerate gastroenteric environment and the adhesive capacity to HT-29 cells. It was demonstrated that the probiotic strains inhibited subsequent adhesion of pathogensto the HT-29 cell. Among the selected strains, the selected Lactobacillus rhamnosus F0533 showed a high probiotic potential and could be used in health-promoting food products.After analyzing the sequence of the 16SrDNA regions of these three strains, the potential probiotic F0533 were Lactobacillus rhamnosus.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Chaohui Xue AU - Chun Yue AU - Xueguo Liu AU - Le Yuan PY - 2016/07 DA - 2016/07 TI - Selection of Potential Probiotic Strains Isolated from Human Intestinal Tract and Traditional Ferment Milk BT - International Conference on Biomedical and Biological Engineering PB - Atlantis Press SN - 2468-5747 UR - https://doi.org/10.2991/bbe-16.2016.63 DO - https://doi.org/10.2991/bbe-16.2016.63 ID - Xue2016/07 ER -