Structural and functional insights into lactobacin A: a novel non-pediocin-like bacteriocin from a <i>Liquorilactobacillus</i> strain related to <i>L. mali</i>

Lactobacin A represents a unique addition to the Class IId bacteriocins, characterized by its non-pediocin-like structure and novel functional properties. This study not only introduces the first bacteriocin-producing strain closely related to <i>Liquorilactobacillus mali</i> but also underscores the potential of lactobacin A as a stable and effective antimicrobial agent under diverse environmental conditions. Its robust stability and narrow-spectrum activity against gram-positive bacteria make it a valuable candidate for applications in food preservation and therapeutic development.