Antibacterial
Japanese: 抗菌
The action of inhibiting microbial growth. Organic acids and alcohol in fermented foods exert natural antibacterial effects.
Antibacterial action means suppressing microbial growth. Fermented foods inherently possess multiple antibacterial mechanisms.
Lactic acid from lactic acid bacteria lowers pH, repelling most spoilage organisms. Salt in miso suppresses contaminants through osmotic pressure, and acetic acid in vinegar has strong germicidal power. Some lactic acid bacteria even produce natural antimicrobial peptides called bacteriocins.
Fermented foods excel as preserved foods because these layered antibacterial mechanisms are naturally built in. In scientific terms, it's 'hurdle technology'—ensuring safety through multiple barriers.