Effect of Different Carbon Sources on Biosurfactants’ Production by Three Strains of Lactobacillus spp.

• Published in: BioMed research international 2018-01, Vol.2018 (2018), p.1-15
• Main Authors: Mouafo, Tene Hippolyte, Ndjouenkeu, Robert, Mbawala, Augustin
• Format: Article
• Language: English
• Subjects: Antiinfectives and antibacterials; Bacteria; Biochemistry; Biomedical research; Biosurfactants; Biotechnology; Carbon sources; E coli; Emulsification; Escherichia coli; Glycerin; Glycerol; Glycolipids; Glycoproteins; Gram-negative bacteria; Lactobacillus; Lactobacillus delbrueckii; Lactobacillus plantarum; Membrane lipids; Microorganisms; Molasses; Nutrition; Peptides; Pseudomonas aeruginosa; Pseudomonas putida; Salmonella; Soil sciences; Spoilage; Strains (organisms); Studies; Substrates; Sugar; Sugarcane; Surface tension; Surfactants; Tension
• ISSN: 2314-6133; 2314-6141
• DOI: 10.1155/2018/5034783

The potential of three indigenous bacterial strains (Lactobacillus delbrueckii N2, Lactobacillus cellobiosus TM1, and Lactobacillus plantarum G88) for the production of biosurfactants using sugar cane molasses or glycerol as substrates was investigated through emulsifying, surface tension, and antimicrobial activities. The different biosurfactants produced with molasses as substrate exhibited high surface tension reduction from 72 mN/m to values ranged from 47.50 ± 1.78 to 41.90 ± 0.79 mN/m and high emulsification index ranging from 49.89 ± 5.28 to 81.00 ± 1.14%. Whatever the Lactobacillus strain or the substrate used, the biosurfactants produced showed antimicrobial activities against Candida albicans LV1, some pathogenic and/or spoilage Gram-positive and Gram-negative bacteria. The yields of biosurfactants with molasses (2.43 ± 0.09 to 3.03 ± 0.09 g/L) or glycerol (2.32 ± 0.19 to 2.82 ± 0.05 g/L) were significantly (p