[1] Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources West Ch, Kunming 650201, Peoples R China
[2] Kunming Univ Sci & Technol, Yunnan Inst Food Safety, Kunming 650500, Peoples R China
[3] Univ Yaounde I, Fac Sci, Dept Biochem, Lab Phytobiochem & Med Plants Study, Yaound, Cameroon