A sulfonated and nitrated polyether ether ketone/polyvinyl chloride modified atmosphere packaging delays the deterioration of grapes

Because there are few studies on modified PEEK air conditioning packaging for grape preservation, SNPEEK/PVC membrane has practical value. In the present study, 1.0% SN1/PVC and 1.0% SN5/PVC membranes extended the shelf life by more than 16 and 8 days, respectively, compared to the blank group (unsealed packaging). © 2025 Society of Chemical Industry.