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Effect of melatonin treatment on visual quality and health-promoting properties of broccoli florets under room temperature

文献类型： 外文期刊

作者： Miao, Huiying 1 ; Zeng, Wei 1 ; Zhao, Meng 1 ; Wang, Jiansheng 3 ; Wang, Qiaomei 1 ;

作者机构： 1.Zhejiang Univ, Dept Hort, Key Lab Hort Plant Growth Dev & Qual Improvement, Hangzhou 310058, Peoples R China

2.Zhejiang Prov Key Lab Hort Plant Integrat Biol, Hangzhou 310058, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Vegetables, Hangzhou 310021, Peoples R China

关键词： Broccoli florets; Melatonin; Post-harvest; Glucosinolates; Antioxidants

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN： 0308-8146

年卷期： 2020 年 319 卷

页码：

收录情况： SCI

摘要： Effect of melatonin treatment on visual quality and contents of health-promoting compounds of broccoli florets under room temperature was investigated in the present study. Broccoli florets were treated with 1 mu M melatonin and then stored at room temperature. Results showed that melatonin treatment could delay the post-harvest senescence of broccoli, and performed well in maintaining higher levels of antioxidants, such as carotenoids, vitamin C and total phenols, as well as higher antioxidant capacity than the control. Besides, 1 mu M melatonin treatment sustained higher content of glucosinolates, and also resulted in increased percentage of the most potent anticarcinogenic profile, glucoraphanin. Further analysis revealed that 1 mu M melatonin strongly induced the expression of glucosinolate biosynthesis-related genes BoMYB28, BoMYB34, BoCYP79F1, and BoCYP79B2, as well as BoTGG1, a gene involved in glucosinolate hydrolysis. In conclusion, post-harvest treatment with 1 mu M melatonin is potential in maintaining visual quality and health-promoting properties of broccoli florets.

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