Effect of different packaging processing on apple peach during storage
Due to softening,browning and decaying,in order to lengthen the storage period,apple peach was packaged with modified atmosphere packaging boxes and plastic bags under cold-storage conditions.Hardness,soluble solids,titratable acidity,Vc,reducing sugar content,total sugar,polyphenol oidase(PPO),peroxidase(POD) and malondialdehyde(MDA) were examined from apple peach packaged with modified atmosphere packaging boxes and plastic bags at(2±1) ℃ and 80%~90% RH.The results showed that:during storage,apple peach packaged with modified atmosphere packaging boxes can maintain a high hardness,soluble solids,titratable acidity,Vc,reducing sugar content,total sugar and reduce decay rate.The activity of peroxidase(POD) and polyphenol oxidase(PPO) was inhibited,and the content of malondialdehyde increased slowly.Therefore,modified atmosphere packaging boxes had significantly lengthened the storage period of apple peach.After 60 d storage,modified atmosphere packaging boxes can obviously extend apple peach's storage period and shelf life.