Research progress on the role of biogenic amines in post-harvest preservation of melons

Abstract As a significant horticultural cash crop, melon has attracted considerable attention for its postharvest preservation. Biogenic amines are a class of small-molecule nitrogenous bases widely present in living organisms, including putrescine, spermidine, spermine and histamine, which play a significant role in the postharvest preservation of fruits and vegetables. This review systematically examines the mechanisms and applications of biogenic amines in delaying melon senescence and enhancing stress resistance through regulating ethylene synthesis, scavenging free radicals, stabilizing cell membranes, and inducing cold-resistant proteins. Furthermore, we discuss the potential of biogenic amines in mitigating quality deterioration caused by chilling injury, physiological disorders, and pathogen infections. The prospects for the use of biogenic amines in melon preservation are also explored, providing a reference for innovation in postharvest preservation technologies.