Thermophilin 110 inhibits growth and biofilm formation of Streptococcus mutans

•S. thermophilus B59671 naturally produces thermophilin 110, a bacteriocin that inhibits the growth of the oral pathogen Streptococcus mutans•Thermophilin 110 was shown to prevent biofilm formation by S. mutans UA159•Co-culturing S. thermophilus B59671 with S. mutans UA159 prevented biofilm formation.