Pulsed light treatment affects postharvest quality and regulatory mechanisms of sweet corn

文献类型： 外文期刊

第一作者： Ren, Yiting

作者： Ren, Yiting;Wang, Yunxiang;Wang, Yubin;Liu, Shiyu;Ma, Lili;Wang, Qing;Zuo, Jinhua;Zheng, Yanyan;Ren, Yiting;Mu, Jianlou;Wang, Ronghuan;Shi, Yaxing;Watkins, Christopher B.;Zhao, Liqun;Ren, Yiting

作者机构：

关键词： PL (Pulsed light); Antioxidant capacity; Disease resistance; Transcriptome; Metabolome

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.6； 五年影响因子：6.9 ）

ISSN： 0023-6438

年卷期： 2025 年 221 卷

页码：

收录情况： SCI

摘要： Pulsed light (PL) is a novel non thermal physical sterilization technology that utilizes intense pulsed light radiation with instantaneous peak energy to sanitize products. We have investigated the effect of PL on gene expression and metabolites of sweet corn maintained at 20 degrees C for 6 d after treatment. PL treatment resulted in the downregulation of PG, PAL, CCR and C4H, genes associated with kernel firmness, and the upregulation of POD, SOD, HSP, PR-1, PR-5, genes associated antioxidant capacity and disease resistance. PL treatment also suppressed the expression of genes related to ethylene biosynthesis and signaling. Metabolomic analysis showed that PL treatments increased the contents of lipids, flavonoids, amino acids and their derivatives, lignans, coumarins, organic acids and other metabolites, especially specific compounds such as phenolic acids, flavonoids. This study elucidated the physiological and molecular level regulation mechanism of PL treatment on the postharvest quality.

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