High molecular weight dextrans improve the rheological properties of fermented products and have immunomodulatory antiviral activity. We report on 5.84 × 107–2.61 108 Da produced by Leuconostoc lactis AV1n, Weissella cibaria AV2ou confusa V30 FS54 strains. Dextransucrases catalyze dextran synthesis sucrose hydrolysis concomitant with fructose generation. The four bacteria dextransucrases about ...

 Lactic acid bacteria, including lactobacilli, enterococci, leuconostoc and weissella species isolated from Iranian traditional fermented camel milk (Chal) were assessed for the incidence of virulence determinants (gelE, efaAfm, efaAfs, ace, espfs, cylM, cylA and cylB), sensitivity to various antibiotics and virulence phenotypes. The incidence of virulence genes was determined by polymerase cha...

Although ubiquitous, bacteria of the Weissella genus are not given sufficient attention. Many members of the genus were originally classified as Leuconostoc or Lactobacillus. With the development of molecular methods, these phylogenetically closely related bacteria formed a separate group, the Weissella genus. Due to its heterofermentative metabolism, Weissella spp. may cause considerable damag...

Bacterial exopolysaccharides (EPSs) share their compositional and structural features with plant dietary fibers. Therefore, analysis of bacterial EPSs produced during fermentation fruit or vegetables interferes that To get rid this effect, bacteria were grown on a solid medium containing juice purée recovered in quantitative dependent manner quantified the phenol-sulfuric acid colorimetric meth...

Several compounds can be produced by lactic acid bacteria (LAB) isolated from milk such as bacteriocins, small cationic and thermostable peptides, that possess antimicrobial activity. The technological application of these became important for the industry mainly because chemical preservatives. This study aimed to isolate LAB with anti-Listeria monocytogenes activity raw goat characterize their...

African indigenous leafy vegetables (AILVs) are plants that have been part of the food systems in Sub-Saharan Africa (SSA) for a long time and their leaves, young shoots, flowers, fruits seeds, stems, tubers, roots consumed. These high vitamins, minerals, protein, secondary metabolites promote health. This study aimed at isolating, characterizing, identifying dominant lactic acid bacteria (LAB)...