Blueberry (Lanfeng species) leaves and fruit grown at Qingpu
Modern Agricultural Park (Shanghai, China) were hand-picked in
the middle of May and June, 2012, respectively. Leaves were immediately
freeze-dried, milled and then stored at
−80 ◦C prior to
extraction. Fresh fruit were transferred to Shanghai Jiao Tong University
within 2 h after harvest. Berries with similar size and color
were selected, and those with visible decay were abandoned. Fresh
fruit were packed in 250 g clamshell containers with vents and
stored in the dark at 2
±
1 ◦C and 95
±
2% RH refrigerator after being
subjected to coating treatments as described below.