Metabolomics analysis demonstrates improved quality and fungal resistance in postharvest Angelica sinensis with ozone treatment.
Angelica sinensis is susceptible to blue mold caused by Penicillium polonicum during storage. The metabolic mechanisms of O3 as a fungicide in controlling blue mold caused by P. polonicum in A. sinensis remain unclear. This study investigated the effects of O3 treatment on the physiology, pathology, and functional active ingredients of A. sinensis and analyzed its impact on metabolites and metabolic pathways associated with P. polonicum infection. The results indicated that O3 inhibited the occurrence of blue mold, maintained the content of ferulic acid and ligustilide, and suppressed the quality deterioration of A. sinensis. Metabolomics analysis revealed that O3 enhances antioxidant capacity by up-regulating the tricarboxylic acid (TCA) cycle and increasing resistance to fungal invasion by up-regulating the phenylpropanoid biosynthesis pathway. Collectively, O3 treatment improves the quality of postharvest A. sinensis, which provides a theoretical foundation for the application of O3 in fresh postharvest storage for A. sinensis.
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Xi et al. (2026) studied this question.
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