短波紫外线、热空气和丁香酚处理对“晚秋红心桃”采后病害的抑制作用及果实品质的影响  

Research on effects of ultraviolet-C,hot air and eugenol treatments on postharvest disease inhibition and quality of‘Wanqiu Hongxintao’peaches

作　　者：郝雅婧 王燕 张雄 陈继昆 屠康[1] HAO Yajing;WANG Yan;ZHANG Xiong;CHEN Jikun;TU Kang(College of Food Science and Technology,Nanjing Agricultural University,Nanjing 210095,China;Fuyuan Zhenhe Agricultural Products Development Co.Ltd.,Qujing 655502,China;Yunnan Green Food Development Center,Kunming 650225,China)

机构地区：[1]南京农业大学食品科学技术学院,江苏南京210095 [2]富源臻和农产品开发有限公司,云南曲靖655502 [3]云南省绿色食品发展中心,云南昆明650225

出　　处：《食品与发酵工业》2023年第11期247-253,共7页Food and Fermentation Industries

基　　金：国家自然科学基金项目(32072269)。

摘　　要：该研究以晚熟桃“晚秋红心桃”为原料,分别进行短波紫外线、热空气和丁香酚处理,随后于20℃贮藏8 d,期间每2 d取样,测定果实的发病率、病斑直径、颜色、硬度、失重率、可溶性固形物含量和可滴定酸含量。结果表明,3种处理均能有效抑制采后病害的发生,其中热空气处理效果最佳。经热空气处理(40℃,4 h)后,桃果实病害发生率和病斑直径显著低于对照(P<0.05),贮藏第8天时,桃果实病害发生率为20.00%,病斑直径为15.98 mm。此外,热空气处理能够显著抑制采后桃果实失重率的上升和硬度的下降,维持采后果皮色泽(P<0.05)。主成分分析结果进一步证明,热空气处理能维持桃果实采后贮藏期间的品质。综上所述,热空气处理对“晚秋红心桃”采后病害具有良好的抑制效果,并且对桃果实保鲜具有一定的增效作用。The late maturity of‘Wanqiu Hongxintao’peaches were treated with ultraviolet-C(UV-C)irradiation,hot air(HA),and eugenol,respectively,and then stored at a temperature of 20℃for 8 days to study the inhibition to postharvest disease.Disease incidence,lesion diameter,color,firmness,weight loss rate,soluble solid content,and titratable acid content were measured at two-day intervals during storage.Results showed that all three treatments could effectively inhibit the occurrence of postharvest disease of peach fruit during storage,and HA treatment had the best effect.Compared with the control group,HA at 40℃for 4 h could significantly reduce decay incidence to 20.00%and average lesion diameter to 15.98 mm after 8-day storage.Moreover,water and firmness loss of postharvest peaches were significantly inhibited,but color was maintained(P<0.05).The principal component analysis further verified that HA treatment could help to keep the quality of peach fruit during storage.In conclusion,HA treatment had a good inhibitory effect on the postharvest disease of‘Wanqiu Hongxintao’peaches and maintained good quality during storage.

关 键 词：桃 采后病害 热空气处理 短波紫外线处理 丁香酚 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]