Effects of melatonin on the components, quality and antioxidant activities of blueberry fruits

文献类型： 外文期刊

第一作者： Shang, Fanzhen

作者： Shang, Fanzhen;Liu, Ruiling;Wu, Weijie;Han, Yanchao;Fang, Xiangjun;Chen, Hangjun;Gao, Haiyan;Shang, Fanzhen;Liu, Ruiling;Wu, Weijie;Han, Yanchao;Fang, Xiangjun;Chen, Hangjun;Gao, Haiyan;Shang, Fanzhen;Liu, Ruiling;Wu, Weijie;Han, Yanchao;Fang, Xiangjun;Chen, Hangjun;Gao, Haiyan;Shang, Fanzhen;Liu, Ruiling;Wu, Weijie;Han, Yanchao;Fang, Xiangjun;Chen, Hangjun;Gao, Haiyan

作者机构：

关键词： Melatonin; Blueberry fruit; Postharvest quality; Antioxidant enzyme; Gene expression

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：4.952； 五年影响因子：5.383 ）

ISSN： 0023-6438

年卷期： 2021 年 147 卷

页码：

收录情况： SCI

摘要： The effect of melatonin on the components, quality and antioxidant activity in blueberry fruit after harvest were evaluated. 'Powderblue' blueberry fruit were treated with sterile water (control) and 0.01, 0.05, 0.25 mmol L-1 melatonin. The results showed that melatonin could effectively delay decrease of fruit firmness and increase of decay incidence and weight loss rate, among which 0.05 mmol L-1 melatonin treatment showed the best blueberry quality. Melatonin treatment could maintain the contents of ascorbic acid, anthocyanin and total phenol, reduce the accumulation of reactive oxygen species and membrane lipid peroxidation. In addition, melatonin treatment also significantly promoted the activities of antioxidant enzymes such as ascorbate peroxidase (APX), glutathione S- transferase (GST) and phenylalanine ammonia-lyase (PAL) in blueberry. Among them, 0.05 mmol L-1 melatonin treatment up-regulated the expression of antioxidant genes VcAPX, VcGST and VcPAL. These findings suggested that the melatonin can improve the antioxidant activity to a certain extent and delay the senescence process of the blueberry fruit.

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