Mulberry Leaves Harvested before and after Frost: Correlation between Phenylalanine Ammonia Lyase Activity and Total Flavonoid Content as well as Air Temperature
YU Xiaofeng, LI Yunzhu, ZHANG Weiwanqi, WANG Dujun, WEI Yuan, OUYANG Zhen
FOOD SCIENCE . 2016, (21): 21 -25 .  DOI: 10.7506/spkx1002-6630-201621004