natural-antimicrobials
Natural antimicrobials are bioactive compounds produced by plants and other organisms that inhibit the growth of bacteria, fungi, and other pathogens without relying on synthetic chemicals. In plant science, studying these compounds helps researchers understand how plants defend themselves against disease and offers a foundation for developing sustainable alternatives to conventional pesticides and treatments in agriculture.
open_in_new WikipediaPubMed · 2026-05-06
This review synthesizes how plant-derived essential oils can serve as natural, chemical-free food preservatives, and how advanced molecular analysis tools and AI are helping scientists decode exactly how these oils destroy harmful bacteria — moving the field toward safer, sustainable food systems.
Essential oils combat food pathogens through at least four distinct mechanisms simultaneously: physically destroying bacterial membranes, interfering with metabolism, triggering damaging oxidative stress, and disrupting the chemical signals bacteria use to coordinate in groups (quorum sensing).
Transcriptomic, proteomic, and metabolomic analyses reveal that bacteria exposed to essential oils mount coordinated, multi-layered resistance responses — including activating molecular pumps to expel the oils and reprogramming their entire metabolism — which must be accounted for when designing effective preservation strategies.
AI and machine learning tools show promise for predicting essential oil antimicrobial performance but remain constrained by inconsistent datasets across studies, insufficient validation in real food matrices, and limited interpretability of model outputs.