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Exogenous procyanidin treatment delays senescence of harvested banana fruit by enhancing antioxidant responses and in vivo procyanidin content

文献类型： 外文期刊

作者： Chen, Jiao 1 ; Li, Fenfan 1 ; Li, Yixing 1 ; Wang, Yaosong 2 ; Wang, Chaozheng 3 ; Yuan, Debao 1 ; Jiang, Yueming 4 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Haikou Expt Stn, Key Lab Hainan Prov Postharvest Physiol & Technol, Hainan Key Lab Banana Genet Improvement, Haikou 571101, Hainan, Peoples R China

2.Nanjing Forestry Univ, Coll Light Ind Sci & Engn, Nanjing 210037, Jiangsu, Peoples R China

3.Hainan Entry Exit Inspect & Quarantine Bur, Inspect & Quarantine Technol Ctr, Haikou 570311, Hainan, Peoples R China

4.Chinese Acad Sci, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China

关键词： Banana fruit; Senescence; Procyanidins; Anti-oxidation; Anthocyanidin reductase

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：5.537； 五年影响因子：5.821 ）

ISSN： 0925-5214

年卷期： 2019 年 158 卷

页码：

收录情况： SCI

摘要： Banana fruit has high nutritional value and is consumed worldwide. However, rapid senescence shortens the storage time of harvested banana fruit after ripening. Procyanidins (PAs) are excellent antioxidants, but their effects on harvested fruit are obscure. Here, we explored the effects of exogenous PAs on senescence in banana fruit. Notably, a 1% PA solution delayed senescence of banana fruit, as demonstrated by reduced decrease in pulp firmness, peel color changes, and total soluble solids accumulation in pulp. Reactive oxygen species levels, malondialdehyde content, and relative conductivity rates in peels were significantly decreased, whereas superoxide dismutase, catalase, and peroxidase activity and expression were enhanced by PA treatment. The DPPH center dot scavenging activity in peels of PA-treated fruit was also enhanced, and in vivo PA contents in the peel and pulp were induced by PA treatment. Overall, PA-dependent delayed senescence could help maintain the freshness of harvested banana fruit.

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