1. a Department of Plant Industry , National Ping-Tung University of Science & Technology , No. 1, Hseuh Fu Rd., Nei Pu Hsiang, Ping-Tung , 912 , Taiwan, R.O.C.
2. b National Research Institute of Chinese Medicine , No. 155-1 Sec. 2, Li-Nung St. Peitou, Taipei , 112 , Taiwan, R.O.C.