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(a) Weight loss and (b) firmness of blueberries packed in clamshell (CL), biodegradable films based on corn starch and chitosan (CS:CH), active biodegradable films containing 3% grapefruit seed extract (GSE3) or 3% lemon essential oil (LEO3), and modified atmosphere commercial bags (MA). Blueberries were stored for 30 days under refrigeration conditions and then kept for 7 days at room temperature.
