Potato storage test was performed to test the UV light screening
effect of PLA/PBAT blend films. Potato samples with medium size
(about 75 g) were washed with tap water and dried in the air, then
four bulbs of potato were packed into a white colored opaque
polypropylene (PP) tray (size: 19 cm x 12 cm x 5 cm) and covered
top with different types of films including PLA, PLA98/PBAT2, PLA95/
PBAT5, and PBAT films using the same heat sealing method as the
packaging of green onions. In addition, potato sample without
cover film was used for comparison.