food-preservation
Food preservation encompasses the methods and processes used to extend the shelf life of plant-based foods by inhibiting microbial growth, slowing oxidation of fats, and preventing enzymatic deterioration such as browning. For plant science, understanding the biochemical pathways behind spoilage—including enzymatic reactions, cell wall degradation, and secondary metabolite changes—is essential to developing better preservation strategies. Research in this area informs breeding programs and post-harvest handling techniques that reduce food waste and maintain nutritional quality from harvest to consumption.
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.