Northwest Collaborative Innovation Center for Chinese Medicine, Gansu Provincial Key Laboratory of Traditional Chinese Medicine Quality and Standard, Department of Chinese Medicine, Gansu University of Chinese Medicine, Lanzhou 730000, China
State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
Northwest Collaborative Innovation Center for Chinese Medicine, Gansu Provincial Key Laboratory of Traditional Chinese Medicine Quality and Standard, Department of Chinese Medicine, Gansu University of Chinese Medicine, Lanzhou 730000, China