Pulsed light treatment affects postharvest quality and regulatory mechanisms of sweet corn
文献类型： 外文期刊
作者： Ren, Yiting 1 ; Mu, Jianlou 2 ; Zhao, Liqun 5 ; Wang, Yunxiang 1 ; Wang, Yubin 1 ; Liu, Shiyu 1 ; Ma, Lili 1 ; Wang, Ronghuan 3 ; Shi, Yaxing 3 ; Wang, Qing 1 ; Watkins, Christopher B. 4 ; Zuo, Jinhua 1 ; Zheng, Yanyan 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Key Lab Fruits & Vegetable Storage & Proc State, Key Lab Vegetable Postharvest Proc, Beijing Vegetable Res Ctr,Minist Agr & Rural Areas, Beijing 100097, Peoples R China
2.Hebei Agr Univ, Coll Food Sci & Technol, Baoding 071001, Hebei, Peoples R China
3.Beijing Acad Agr & Forestry Sci, Inst Corn, Beijing 100097, Peoples R China
4.Cornell Univ, Coll Agr & Life Sci, Sch Integrat Plant Sci, Hort Sect, Ithaca, NY 14853 USA
5.Beijing Agr Technol Extens Stn, Beijing 100029, Peoples R China
6.50 Zhanghua Rd, Beijing, Peoples R China
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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