贵州农业科学2025，Vol.53Issue(12)：10-16,7.DOI:10.3969/j.issn.1001-3601.2025.12.002
金煌芒采后果皮细胞壁物质代谢与抗氧化酶活性研究
Study on Substance Metabolism and Antioxidant Enzyme Activity of Peel Cell Wall of Postharvest Jinhuang Mango
摘要
Abstract
[Objective]The changes in substance metabolism and antioxidant enzyme activity of peel cell wall of postharvest Jinhuang mango were investigated to provide a reference for storage and preservation of Jinhuang mango.[Method]The peel hardness,cell wall substance content,cell wall degrading enzyme activity and antioxidant enzyme activity of physiological maturity mango fruits were determined on 0 d,4 d,8 d and 12 d storage at room temperature after harvest to analyze the main reason to cause mango fruit softening.[Result]With the extension of storage days,the peel hardness of Jinhuang mango gradually decreased,the fruit softening speed was slow during 0-4 d storage,and the fruit softening speed increased during 8-12 d storage.The content of total pectin(TP),protopectin(PP)and cellulose(CEL)in peel decreased significantly,the soluble pectin(SP)content in peel increased significantly and the activity of polygalacturonase(PG),pectinesterase(PME)and cellulase(Cx)in peel showed a rising trend during storage of mango fruits.The activity of superoxide dismutase(SOD)and peroxidase(POD)showed a declining trend,and the catalase(CAT)activity showed a decreasing first and then increasing trend.The peel hardness was closely related to substance content,degrading and antioxidant enzyme activity of cell wall.The fruit hardness was positively related to protopectin(PP)content and POD activity significantly and negatively related to polygalacturonase(PG)and pectinesterase(PME)activity significantly.[Conclusion]The change in peel texture of Jinhuang mango is regulated by many enzymes of PG,PME,Cx,SOD and POD.The increase of cell wall degrading enzyme activity and degradation of cell wall substances in peel are the main reasons to cause softening of Jinhuang mango fruits.关键词
金煌芒/果皮/细胞壁降解酶/抗氧化酶/软化/果胶/纤维素/贮藏保鲜Key words
Jinhuang mango/peel/cell wall degrading enzyme/antioxidant enzyme/softening/pectin/cellulose/storage and preservation分类
农业科技引用本文复制引用
LIN Ya,LEI Yue,ZHANG Zhengxue,LIU Rong,LIU Qingguo,LIU Fanzhi..金煌芒采后果皮细胞壁物质代谢与抗氧化酶活性研究[J].贵州农业科学,2025,53(12):10-16,7.基金项目
贵州省农业科学院青年基金项目"代谢组与转录组联合解析芒果果皮转色机制的研究"(黔农科一般基金[2024]24号) （黔农科一般基金[2024]24号）
财政部和农业农村部国家现代农业产业技术体系资助项目"国家香蕉产业技术体系贵州黔西南综合试验站"(cARs-31-23) （cARs-31-23）
贵州省农业科学院喀斯特山区作物基因资源与种质创新重点实验室"贵州热区特色作物种质创新与高效关键技术研究"(黔农科种质资源[2023]08号) （黔农科种质资源[2023]08号）
