2. Materials and methods
2.1. Fruit and leaf materials
Blueberry (Lanfeng species) leaves and fruit grown at Qingpu
Modern Agricultural Park (Shanghai, China) were hand-picked in
themiddleofMayandJune,2012, respectively. Leaveswereimmediately freeze-dried, milled and then stored at −80◦
C prior to
extraction. Fresh fruit were transferred to Shanghai Jiao Tong University within 2h after harvest. Berries with similar size and color
were selected, andthosewithvisibledecaywere abandoned. Fresh
fruit were packed in 250g clamshell containers with vents and
storedinthedarkat2±1
◦
Cand95±2%RHrefrigeratorafterbeing
subjected to coating treatments as described below.