Original ResearchPublished 23 January 2026Isolation, purification, and structural characterization of biosurfactants derived from indigenous probiotics Lactobacillus helveticus MTCC5463 and Lactobacillus rhamnosus MTCC5462Kamini Pandey · Madhu Kumari · Sameena Mehtab · Barkha SinghalFrontiers in Bacteriologydoi 10.3389/fbrio.2025.1726048