Some of the examples of naturally occurring antibacterial agents and their mechanisms of action

Naturally occurring antibacterial drugsMechanism of actionReference
Trans-cinnamaldehydeInhibits the growth of multidrug-resistant Escherichia coli by disrupting the cell wall integrity, leading to cell lysis and death.[35]
CarvacrolDamages bacterial cell membranes, prevents biofilm formation, and disrupts quorum sensing, making it effective against multidrug-resistant strains.[36]
GentisaldehydeAlkylates essential cellular components such as DNA, RNA, and proteins, resulting in protein denaturation and alteration of nucleic acids, which interferes with bacterial function.
[37]
PhloroglucinaldehydeUses a dual mechanism by disrupting bacterial cell membranes and inhibiting essential metabolic pathways critical for bacterial survival.[38]