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

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

Food Chem

Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Department of Horticulture, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Hangzhou 310058, China. Electronic address:

Published: July 2020

AI Article Synopsis

  • The study examined how treating broccoli florets with 1 μM melatonin affects their visual quality and health benefits when stored at room temperature.
  • Results indicated that melatonin treatment slows down the deterioration of broccoli, helping maintain higher levels of antioxidants and glucosinolates compared to untreated samples.
  • The research also found that melatonin increases the expression of specific genes linked to glucosinolate production, suggesting it could enhance the broccoli's health-promoting properties after harvest.

Article Abstract

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 μM 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 μM 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 μM 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 μM melatonin is potential in maintaining visual quality and health-promoting properties of broccoli florets.

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Source
http://dx.doi.org/10.1016/j.foodchem.2020.126498DOI Listing

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