外源茉莉酸甲酯对解放钟枇杷果实采后品质的影响  

The effect of exogenous MeJA on postharvest quality of Jiefang zhong loquat fruit

作　　者：郑俊峰[1,2] 谢建华 庞杰[3] ZHENG Jun-feng;XIE Jian-hua;PANG Jie(Department of Food and Biology Engineering,Zhangzhou Institute of Technology,Zhangzhou,Fujian 363000,China;The Applied Technical Engineering Center of Further Processing and Safety of Agricultural Products,Higher Education Institutions in Fujian Province,Zhangzhou,Fujian 363000,China;College of Food Science and Technology,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China)

机构地区：[1]漳州职业技术学院食品与生物工程系,福建漳州363000 [2]农产品深加工及安全福建省高校应用技术工程中心,福建漳州363000 [3]福建农林大学食品科学学院,福建福州350002

出　　处：《食品与机械》2020年第10期120-124,共5页Food and Machinery

基　　金：福建省教育厅中青年教师教育科研项目(编号:JZ180814);福建省科技计划项目(编号:2018N2002)。

摘　　要：以福建云霄解放钟枇杷为试材,采用10,20,50μmol/L外源茉莉酸甲酯(MeJA)熏蒸8h,通过检测(4±1)℃贮藏过程中可溶性固形物(TSS)、总糖、维生素C、总酸(TA)含量和呼吸强度、失重率、乙烯释放速率、腐烂率等指标,研究MeJA熏蒸处理对枇杷果实采后品质的影响。结果表明,20μmol/L MeJA熏蒸处理可抑制枇杷果实呼吸强度、降低失重率和贮藏前期乙烯释放速率,维持总糖、维生素C、TA和贮藏后期较高TSS含量。基于外源MeJA的浓度效应,10μmol/L MeJA处理对枇杷果实失重率影响不显著,50μmol/L MeJA处理对保持枇杷果实维生素C、总糖、TA和贮藏后期的TSS含量效果不明显。综上,20μmol/L MeJA处理对枇杷果实采后品质有积极影响。The fruit of Jiefang zhong loquat was fumigated with 10,20,50μmol/L MeJA for 8 hours.The effects of MeJA treatment on the postharvest quality of loquat during(4±1)℃cold storage were studied by measuring the respiratory intensity,weight loss rate,ethylene release rate,decay rate and TSS,total sugar,V C and TA content.The results showed that 20μmol/L MeJA fumigation inhibited the respiratory intensity,reduced the weight loss rate and ethylene release rate in the early stage,maintained the content of total sugar,V C and TA,TSS content in the late stage.Based on the concentration effect of exogenous MeJA,10μmol/L MeJA fumigation had no significant effect on reducing the weight loss rate,while 50μmol/L fumigation had no significant effect on maintaining V C,total sugar,TA,TSS content.Combine all the factors,20μmol/L MeJA treatment had a positive effect on postharvest quality of loquat fruit.

关 键 词：茉莉酸甲酯 解放钟枇杷 采后品质 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]