温度和包装对巨峰葡萄贮藏品质的影响

Effect of Temperature and Package on Storage Quality of Kyoho Grapes

研究了不同贮藏温度(常温、8℃和0℃)和包装(30μm和50μmPE膜)条件下巨峰葡萄果实失重率、Vc、TSS和可滴定酸含量变化情况。结果表明,随着贮期的延长,果实失重率增加,Vc和可滴定酸含量逐渐减少,TSS含量先上升后降低。低温和包装能够显著抑制果实水分蒸发,保持TSS和可滴定酸含量的相对稳定;低温保持了较高的VC含量,但包装效果不明显。30μm PE包装较50μm对葡萄贮藏效果好。

Changes of loss of weight,Vc,TSS and titratable acid content of kyoho grape fruits stored at different temperture and package after harvest were studied. The results showed ： during the storage, the loss of weight of fruits increased, the titratable acid and vitamin C decreased gradually,TSS content added first and then lowed. Cold temperature and package storage inhibited significantly fruit transpiration, and keep relative stability of the TSS and the titratable acid content,cold temperature keep high vitamin C content, but effects of package were not obvious,30μm polyethylene film package were better than 50μm.