Fig. 5. Stability of Bis (A), Dem (C), Cur (E), and ar-Tur (G) in HDES (OA : menthol, 20 : 80 mass ratio) and those Bis (B), Dem (D), Cur (F), and ar-Tur (H) in ME-23 after 30 day storage at various temperatures. Data are presented as mean ± SEM of three independent experiments.