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首页> 外文期刊>Postharvest Biology and Technology >Methyl salicylate treatments of sweet cherry trees increase antioxidant systems in fruit at harvest and during storage
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Methyl salicylate treatments of sweet cherry trees increase antioxidant systems in fruit at harvest and during storage

机译:甜樱桃树的水杨酸甲酯处理增加了果实在收获和贮藏期间的抗氧化系统

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Sweet cherry trees (Prunus avium L.) were treated with methyl salicylate (MeSa) at 1 mM at 3 key events on fruit development on-tree to analyze the effect of MeSa on bioactive compounds, total antioxidant activity (TAA) and antioxidant enzymes at harvest and during 28 days storage. The experiments were performed during two consecutive years, by using two sweet cherry cultivars, 'Sweet Heart' and 'Sweet Late' in 2013 and another more cultivar, 'Lapins', in 2014. Both total phenolics and anthocyanins content were significantly higher in MeSa-treated than in control fruit at harvest and during storage, leading to fruit with higher hydrophilic TAA (H-TAA). The activity of the antioxidant enzymes catalase (CAT), peroxidase (POD), ascorbate peroxidase (APX) and superoxide dismutase (SOD) decreased along storage for all cultivars and experimental years, although those fruit treated with MeSa exhibited higher activities of these antioxidant enzymes than controls. Thus, MeSa treatment of cherry trees could increase health-promoting properties of cherry fruit consumption, due to its effect on increasing antioxidant and bioactive compounds, with additional effect on delaying the fruit postharvest senescence process by increasing the activity of the enzymes involved in reactive oxygen species (ROS) scavenging. (C) 2015 Elsevier B.V. All rights reserved.
机译:在树上果实发育的三个关键事件上,以1 mM的水杨酸甲酯(MeSa)处理甜樱桃树(Prunus avium L.),以分析MeSa对生物活性化合物,总抗氧化活性(TAA)和抗氧化酶的影响收获并在28天内存储。该实验连续两年进行,使用了2013年的'Sweet Heart'和'Sweet Late'两个甜樱桃品种,以及2014年的另一个品种'Lapins'。MeSa中的总酚和花色苷含量均显着更高处理后的果实在收获和贮藏期间比对照果实要高,从而导致果实具有更高的亲水性TAA(H-TAA)。在所有品种和实验年份中,抗氧化酶过氧化氢酶(CAT),过氧化物酶(POD),抗坏血酸过氧化物酶(APX)和超氧化物歧化酶(SOD)的活性均下降,尽管用MeSa处理的果实表现出较高的抗氧化酶活性比控件。因此,MeSa处理樱桃树可以提高樱桃果实食用的健康状况,因为它可以增加抗氧化剂和生物活性化合物的作用,还可以通过增加参与活性氧的酶的活性来延迟水果采后的衰老过程。物种(ROS)清除。 (C)2015 Elsevier B.V.保留所有权利。

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