Isolation and identification of lactic acid bacteria from rhizosphere soils of three fruit trees, fish and ogi.
Ekundayo F. O.
Author Affiliation: Department of Microbiology, Federal University of Technology, PMB 704, Akure, Nigeria.
International Journal of Current Microbiology and Applied Sciences 3 : 991-998
Abstract : A total number of twenty one (21) bacterial isolates was obtained from rhizosphere soils of mango, banana, and guava trees, gastrointestinal tracts and gills of fish, fish pond sediment and water as well as yellow maize gruel (ogi). Out of these isolates, seventeen (17) were found out to be LAB. Eleven of the LAB isolates were identified to be Lactobacillus species, three were Streptococcus species, two were Lactococcus species and the remaining one was Leuconostoc species. All the LAB isolates possessed the ability to grow at a low pH of 3.0; eight of the isolates grew at 10°C, ten of the isolates grew at 15°C while five of the isolates grew at 45°C. Eight of the isolates had the ability to grow at 4% NaCl while only Lb. casei isolated from different sources grew at 6.5% NaCl.