8th International Conference on Environmental Microbiology, Soil Microbiology & Microbial Biogeochemistry
Montreal, Canada
Belarbi Aicha Yasmine
University of Ahmed Ben Bella-Oran1, ALGERIA
Title: Investigating the biotechnological potential of lactic acid bacteria strains isolated from different Algerian dairy and farm sources
Biography
Biography: Belarbi Aicha Yasmine
Abstract
Currently, Algerian derivate Lactic Acid Bacteria (LAB) strains are gaining attention in literature due to its potential to antagonize pathogenic bacteria, resulting in candidate strains for bioprotection purposes. In this context, to select eligible strains which could be applied as bioprotective and/or starter cultures, the present study aimed to characterize the genomic variability, biotechnological potential and safety of thirty-eight LAB isolated from Algerian dairy and plant material (Olive oil-pollen) of western Algeria. The isolates were unequivocally identified by 16S rRNA gene and fingerprint-based methods. The following species were identified: Enterococcus faecium (n=15), Enterococcus durans (n=2), Enterococcus hirae (n=2), Enterococcus lactis (n=1), Lactiplantibacillus plantarum (n=6), Lactococcus lactis (n=4), Levilactobacillus brevis (n=3), Lacticaseibacillus paracasei (n=3), Lacticaseibacillus rhamnosus (n=1), and Pediococcus acidilactici (n=1). Among the strains, three of them, L. lactis LGMY8, Lb. plantarum LGMY30 and Lb. paracasei LGMY31 were safe and showed some valuable biotechnological properties, such as high acidification, proteolytic activity, EPS production, and inhibition of undesirable bacteria, that made them powerful candidates to be used as bioprotective or cultures.