外源褪黑素处理对花椰菜采后贮藏品质及生理变化的影响  

Effect of exogenous melatonin treatment on postharvest storage quality and physiological changes in cauliflower

作　　者：张鹏[1] 杨钧翔 刘玲[2] 贾晓昱 吴迪[3,4] 孙学良 李江阔 ZHANG Peng;YANG Junxiang;LIU Ling;JIA Xiaoyu;WU Di;SUN Xueliang;LI Jiangkuo(Institute of Agricultural Products Preservation and Processing Technology,Tianjin Academy of Agricultural Sciences,Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products,Key Laboratory of Storage of Agricultural Products,Ministry of Agriculture and Rural Affairs,National Engineering and Technology Research Center for Preservation of Agricultural Products(Tianjin),Tianjin 300384,China;School of Food Science,Shenyang Agricultural University,Shenyang 110866,China;College of Agriculture&Biotechnology,Zhejiang University,Hangzhou 310058,China;Zhongyuan Institute,Zhejiang University,Zhengzhou 450000,China;Tianjin New Technology Industrial Park Dayuandong Refrigeration Equipment Engineering Technology Co.Ltd.,Tianjin 301617,China)

机构地区：[1]天津市农业科学院农产品保鲜与加工技术研究所,国家农产品保鲜工程技术研究中心(天津),农业农村部农产品贮藏保鲜重点实验室,天津市农产品采后生理与贮藏保鲜重点实验室,天津300384 [2]沈阳农业大学食品学院,辽宁沈阳110866 [3]浙江大学农业与生物技术学院,浙江杭州310058 [4]浙江大学中原研究院,河南郑州450000 [5]天津新技术产业园区大远东制冷设备工程技术有限公司,天津301617

出　　处：《食品与发酵工业》2024年第17期328-335,共8页Food and Fermentation Industries

基　　金：甘肃省科技计划重大项目(21ZD4NA016)。

摘　　要：为探究褪黑素(melatonin,MT)处理对花椰菜保鲜效果的影响,该研究以花椰菜为实验材料,采用浓度为50μmol/L的MT处理,以不喷施MT作为对照,处理后PE膜包装并于0℃冷库进行贮藏,并对贮藏60 d内样品的感官品质、营养指标、生理指标、衰老指标及生理变化相关酶活性进行测定,研究外源MT处理对花椰菜采后贮藏品质和生理变化的影响。结果表明,MT处理组腐烂率更低,贮藏60 d时腐烂率为15%,CK组腐烂率为35%,显著高于MT处理组(P<0.05),采后外源MT处理能够更好地维持还原糖、可溶性固形物、维生素C和可溶性蛋白含量,抑制呼吸速率和乙烯生成速率,延缓相对电导率含量的增加,维持过氧化物酶、超氧化歧化酶和过氧化氢酶活性,抑制多酚氧化酶活性的升高及H_(2)O_(2)含量的积累。该实验结果可以为花椰菜采后贮藏保鲜提供理论依据与数据支撑,并为花椰菜采后贮运提供新的思路及方法。To investigate the effect of melatonin(MT)treatment on the preservation of cauliflower,this study used cauliflower as the experimental material,and used MT treatment at a concentration of 50μmol/L,with no MT spray as the control,and then packaged in PE film and stored at 0℃,and measured the organoleptic quality,nutrient indexes,physiological indexes,senescence indexes,and the activity of reactive oxygen metabolism and related enzymes in the storage area for 60 days.The effect of exogenous melatonin treatment on the storage quality and physiological changes of cauliflower after harvesting was also studied.The exogenous melatonin treatment was used to study the effects of storage quality and physiological changes of cauliflower after harvesting.Results showed that the decay rate was lower in the MT treatment group,15%at 60 days of storage,and 35%in the CK group,which was significantly higher than that in the MT treatment group(P<0.05),and that the exogenous melatonin treatment was able to better maintain the content of reducing sugars,soluble solids,vitamin C,and soluble proteins,inhibit respiration rate and ethylene production rate,delay the increase of the relative electrical conductivity,maintain peroxidase,superoxide dismutase and catalase activities,and inhibit the increase of polyphenol oxidase activity and the accumulation of H_(2)O_(2) content.The results of this experiment can provide theoretical basis and data support for cauliflower post-harvest storage and preservation,and provide new ideas and methods for cauliflower post-harvest storage and transportation.

关 键 词：褪黑素 花椰菜 贮藏保鲜 生理变化 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]