Analysis of bisabolocurcumin ether (a terpene-conjugated curcuminoid) and three curcuminoids in Curcuma species from different regions by UPLC-ESI MS/MS and their in vitro anti-inf... oleh Rui Li, Fang Liu, Xiao Yang, Lian-qi Chen, Fei Wang, Guo-lin Zhang, Qian Zhang, Liang Zhang, Yu-xin He, Yu-feng Li, Peng Lai, Xiang-gui Chen, Min Ye, Hong-tao Xiao, Hang Xiao