Kunkecin A, a New Nisin Variant Bacteriocin Produced by the Fructophilic Lactic Acid Bacterium, FF30-6 Isolated From Honey Bees.

FF30-6 isolated from healthy honey bees synthesizes the bacteriocin, which exhibits antimicrobial activity against . The bacteriocin, kunkecin A, was purified through three-step chromatography, and mass spectrometry revealed that its relative molecular mass was 4218.3.