Probiotics are live microorganisms which show several health benefits. The aim of the study was to analyze probiotic properties of isolated probiotic bacteria from selective regional yogurt samples of Bangladesh. Ten lactobacillus bacteria were isolated from yogurt samples of Sylhet and Mymensingh Divisions of Bangladesh. Yogurt samples were cultured on MRS Agar media with appropriate dilution for the isolation of potential probiotic bacteria and pure cultures were obtained by continuous sub-culturing. Isolated bacteria were well characterized by biochemical tests. Probiotic properties study of those isolates were performed by pH resistance test, bile salt resistance test, Na-Cl tolerance test, phenol tolerance test and sugar fermentation tests. All the isolates were resistant at pH 3, 0.3% bile and 0.1%, 0.2%, 0.3% & 0.4% phenol. In case of Na-Cl tolerance test, the isolates survived well at 2% and 4% Na-Cl and less survival rate were observed at 6% and 8% concentrations. All the isolates showed antimicrobial activity against eight human and animal enteric pathogens. Selected isolates from yogurt samples fulfilled the most criteria of probiotic bacteria. Numerous probiotic containing food and feed products can be developed and also be used as a bio therapeutic agent for different metabolic disorders and they also may be a good focus for further research regarding development of probiotic food products for human.
Key Words: Native Probiotics, Lactobacillus, Yogurt
The gut microbiome: implications for neurogenesis and neurological diseases.
Liu C, Yang SY, Wang L, Zhou F
Neural regeneration research. 2022; 17(1): 53-58
Cultivation-Based Quantification and Identification of Bacteria at Two Hygienic Key Sides of Domestic Washing Machines.
Jacksch S, Zohra H, Weide M, Schnell S, Egert M
Microorganisms. 2021; 9(5):
An opioid and substance use disorder needs assessment study for American Indian and Alaska Native youth in California.
West AE, Telles V, Antony V, Zeledon I, Moerner L, Soto C
Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors. 2021; ():
Hypoxia and HIF-1 as key regulators of gut microbiota and host interactions.
Pral LP, Fachi JL, CorrĂªa RO, Colonna M, Vinolo MAR
Trends in immunology. 2021; 42(7): 604-621
Spinal cord injury and aging: an exploration of the interrelatedness between key psychosocial factors contributing to the process of resilience.
Jenkins HT, Cosco TD
Health psychology and behavioral medicine. 2021; 9(1): 315-321