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Exogenous melatonin treatment reduces postharvest senescence and maintains the quality of papaya fruit during cold storage

文献类型： 外文期刊

作者： Wang, Dengliang 1 ; Randhawa, Mazhar Saeed 2 ; Azam, Muhammad 2 ; Liu, Hongru 3 ; Ejaz, Shaghef 4 ; Ilahy, Riadh 5 ; Qadri, Rashad 2 ; Khan, Muhammad Imran 6 ; Umer, Muhammad Ali 2 ; Khan, Muhammad Arslan 2 ; Wang, Ke 7 ;

作者机构： 1.Quzhou Acad Agr & Forestry Sci, Inst Fruit Tree Res, Quzhou, Peoples R China

2.Univ Agr Faisalabad, Inst Hort Sci, Pomol Lab, Faisalabad, Pakistan

3.Shanghai Acad Agr Sci, Inst Crop Breeding & Cultivat Res, Shanghai, Peoples R China

4.Bahauddin Zakariya Univ, Dept Hort, Multan, Pakistan

5.Univ Carthage, Natl Agr Res Inst Tunisia INRAT, Lab Hort, Ariana, Tunisia

6.Univ Agr Faisalabad, Inst Soil & Environm Sci, Faisalabad, Pakistan

7.Anhui Agr Univ, Key Lab Jianghuai Agr Prod Fine Proc & Resource Ut, Anhui Engn Lab Agroprod Proc, Minist Agr & Rural Affairs, Hefei, Peoples R China

关键词： Papaya; biochemical assays; antioxidant capacity; ROS; sensory attributes; postharvest storage; melatonin

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）

ISSN： 1664-462X

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： IntroductionExogenous melatonin (EMT) application has been used to reduce postharvest senescence and improve the quality and antioxidant enzyme activities of papaya fruits during cold storage. MethodsThe effects of exogenous melatonin application (1. 5 mM) were investigated on papaya fruits during cold storage (10 degrees C +/- 2 degrees C) for 28 days in the present study. Results and discussionThe EMT treatment delayed postharvest senescence significantly with lower maturing status compared with untreated papaya fruits (control). In addition, EMT treatment maintained substantially higher titratable acidity values and ascorbic acid content but significantly lower soluble solids content and lower weight loss compared with the untreated fruits. Concerning the antioxidant capacity, the EMT-treated papaya fruit exhibited markedly higher total phenolic content and, consequently, higher DPPH-radical scavenging activity than the control group. The EMT treatment not only kept a higher enzyme activity of superoxide dismutase, peroxidase, and catalase but also significantly inhibited the accumulation of hydrogen peroxide and malondialdehyde, along with satisfying sensory attributes. ConclusionThe findings of this study indicated that EMT application could be commercially used as an eco-friendly strategy to reduce postharvest senescence and maintain the fresh-like quality traits of papaya fruit during cold storage.

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