高压静电场处理对椪柑采后贮藏性的影响  

Effect of high voltage electrostatic field treatment on the storability of postharvest ponkan fruit

作　　者：吴珏 谢文华 徐淑婷 陈烨芝 曹锦萍 王岳[1] 孙崇德[1] WU Jue;XIE Wenhua;XU Shuting;CHEN Yezhi;CAO Jinping;WANG Yue;SUN Chongde(Laboratory of Fruit Quality Biology/Laboratory of Horticultural Plant Growth,Development and Quality Improvement,Ministry of Agriculture and Rural Affairs/Horticultural Products Cold Chain Logistics Technology and Equipment National-Local Joint Engineering Laboratory/Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学果实品质生物学实验室/农业农村部园艺植物生长发育与品质调控重点开放实验室/园艺产品冷链物流工艺与装备国家地方联合工程实验室/园艺植物整合生物学研究与应用浙江省重点实验室,杭州310058

出　　处：《浙江大学学报（农业与生命科学版）》2020年第1期64-73,82,共11页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：“十三五”国家重点研发计划(2017YFD0401303);农业农村部农业科研杰出人才及其创新团队项目。

摘　　要：以椪柑(Citrus reticulata Blanco cv.Ponkan)为试验材料,研究高压静电场(high voltage electrostatic field,HVEF)处理对椪柑果实采后耐贮性的影响。结果表明:HVEF处理能减少椪柑果实贮藏过程中的腐烂损耗,其中200 kV/m单次处理2 h的效果最佳。经过HVEF处理的果实,果皮表面病菌数量减少,贮藏过程中的失重率和呼吸速率均有所下降,蔗糖、葡萄糖、果糖含量均高于对照,果实中异味成分乙醇的积累减少。同时,HVEF处理后椪柑果实的生长素吲哚乙酸水平在整个贮藏过程中均显著高于对照,贮藏早期(30 d)的脱落酸水平也显著高于对照。透射电镜观测结果表明,经过HVEF处理的果实表皮细胞结构发生了变化。综上,HVEF处理可能通过杀菌和果实生理调节2方面起作用,减少果实病原菌基数,诱导果实抗性,延缓衰老,从而减轻采后损失并维持果实品质。The effects of high voltage electrostatic field(HVEF)treatment on the storability of postharvest ponkan(Citrus reticulata Blanco cv.Ponkan)fruit were studied.The results showed that,the HVEF treatment reduced the decay rate of ponkan fruit,with the single treatment at 200 kV/m for 2 h as the optimum measure.Correspondingly,the number of surface microorganisms was reduced by the HVEF treatment.The fruits treated by the HVEF had the lower weight loss rate,the respiration rate and the accumulation of ethanol,but had the higher sucrose,glucose and fructose contents than those of the control.The indole-3-acetic acid(IAA)level of fruits by the HVEF treatment was significantly elevated throughout the storage process;in addition,the abscisic acid(ABA)level was significantly elevated at the early stage of storage(30 d).The results of transmission electron microscope observation showed the structural changes in the cell of the fruit peel.In conclusion,the HVEF treatment is effective in reducing the postharvest loss and maintaining the quality of ponkan fruit through sterilization and fruit physiological regulation.

关 键 词：椪柑 采后 高压静电场 果实品质 

分 类 号：S666.1[农业科学—果树学]