采后加冰处理对德庆贡柑贮藏性能和果实品质的影响

目的]探索保持贡柑果实品质的方法。方法]在采后用冰果重量比1:1、1:2和1:3的比例加冰处理德庆贡柑,研究贡柑采后贮藏性能和果实品质变化特点。结果]1:2加冰处理能保持果实TSS的含量;加冰处理可以较长时间保持果实总糖在高位水平;随加冰量的增加好蒂率也相应提高。从综合效果看,果实总糖、TSS、可滴定酸和Vc的含量和变化动态以冰果比1:2为优。加冰处理可以极显著降低果实霉蒂率,提高好果率,效果以1:1和1:2处理为佳。结论]采后加冰能显著改善果实好蒂率、好果率及果实外观色泽,保持果实内含物含量和风味。

Effects of Adding Ice Treatment after Harvest on Storage Performance and Fruit Quality of Citrus Gonggan of Deqing

Objective] The aim of the research was to explore method of keeping fruit quality of Citrus Gonggan.Method] Citrus Gonggan of Deqing after harvest were treated with adding ice by the ratio of ice-fruit weight of 1∶1,1∶2 and 1:3 to study change characteristics of storage performance and fruit quality of Citrus Gonggan.Result] Treatment with adding ice of 1∶2 could keep TSS content of fruit.Adding ice could keep total sugar at high level for long time.Good-pedicle rate was increased with the increment of adding ice amount.According to the comprehensive effects,fruit total sugar,TSS,titratable acid and Vc content and change dynamic were best when the ice-fruit ratio was 1∶2.Adding ice treatment could extremely significantly reduce mouldy-pedicle rate and enhance good-fruit rate,whose effects in treatments of adding ice by 1∶1 and 1∶2 were the best.Conclusion] Adding ice after harvest could significantly improve fruit good-pedicle rate,good-fruit rate and fruit appearance color,and keep fruit inclusion content and flavor.