褪黑素浓度对草莓果实采后品质的影响  

Effects of Melatonin Concentrations on Postharvest Quality of Strawberry Fruit

作　　者：吴夏明 戴宏芬[1] 杨敏 周陈平 邝瑞彬[1] 刘传和[1] 贺涵 徐泽 魏岳荣[1] WU Xiaming;DAI Hongfen;YANG Min;ZHOU Chenping;KUANG Ruibin;LIU Chuanhe;HE Han;XU Ze;WEI Yuerong(Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization,Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree Research/Institute of Fruit Tree Research,Guangdong Academy of Agricultural Sciences,Guangzhou 510640)

机构地区：[1]广东省农业科学院果树研究所/农业农村部南亚热带果树生物学与遗传资源利用重点实验室/广东省热带亚热带果树研究重点实验室,广州510640

出　　处：《中国农学通报》2025年第1期154-160,共7页Chinese Agricultural Science Bulletin

基　　金：广东省农业科学院果树研究所自主培育项目;珠海市平沙镇科技支撑项目“名特优水果优质高效立体栽培技术研究与集成及示范推广”(TZ-2022-100)。

摘　　要：分析不同浓度褪黑素对草莓采后常温状态下贮藏保鲜的影响,为草莓常温状态下高效、安全保鲜技术的开发提供理论依据。以‘香野’草莓(红熟期75%)为材料,将草莓果实浸泡在不同浓度的褪黑素中,测定常温贮藏期间草莓果实表观品质性状、食用品质性状、抗氧化酶活性、MDA以及H_(2)O_(2)含量并进行综合评价。相比于对照,褪黑素处理对延缓草莓果实硬度、质量损失、可滴定酸的下降速率,促进总酚含量、总黄酮含量、SOD酶活、POD酶活和CAT酶活的上升速率以及抑制MDA和H2O2含量的积累有着重要作用。试验结果显示,褪黑素处理可以延长常温状态下草莓的贮藏保鲜期,其中300μmol/L的浓度效果最佳。The effects of different concentrations of melatonin on the storage and preservation of strawberries at ambient temperature were analyzed,which provided a theoretical basis for the development of efficient and safe preservation technology of strawberries.In this study,‘Xiangye’strawberry(75%at red ripening stage)was used as material,and the differences between apparent quality traits,edible quality traits,antioxidant enzyme activity,MDA and H_(2)O_(2) contents of strawberry fruits during ambient temperature storage were determined and comprehensively evaluated by soaking in melatonin at different concentrations.Compared with the control,melatonin treatments at different concentrations had important roles in delaying the decline rates of strawberry fruit hardness,mass loss,and titratable acid,promoting the rise rates of total phenol content,total flavonoid content,SOD,POD,and CAT enzyme activity,as well as inhibiting the accumulation of MDA and H2O2 content.The results showed that melatonin treatment could prolong the storage period of strawberry at ambient temperature,and the 300μmol/L concentration treatment had the best comprehensive effect.

关 键 词：草莓 褪黑素 常温贮藏 品质 生理变化 保鲜技术 

分 类 号：S668.4[农业科学—果树学]