Full Length Research Paper - Assessment of the physiological and biochemical
characterization of a Lactic acid bacterium isolated from chicken faeces in sahelian region
The aim of this work was the examination of the microbiological and
technological properties of a lactic acid bacterium (CWBI-B623)
isolated from chicken faeces in sahelian region (Burkina Faso). The
strain CWBI-B623 is a Gram positive rod, asporogenous,
catalase-positive, facultatively anaerobic, non motile and mesophilic.
The analysis showed that it produce L(+)-lactic acid via
homofermentative pathway and it was able to ferment an important number
of the carbohydrates of API 50CHL system. The 16S-rDNAsequence analysis
revealed that the isolate was phylogenetically a member of the genus
Lactobacillus and formed a subline within the Lactobacillus
casei cluster. The minimal inhibitory concentration of
CWBI-B623 for bile salts was higher than 1% and the survival rates to
acidity with pH 3.0 and pH 2.5 were 26 and 1.2%, respectively.
CWBI-B623 is an Lactobacillus casei species based on its physiological
and biochemical properties and it could be a good candidate for
probiotic formulations
