Stahility of ligustilide and its β-cyclodextrin inclusion process Optimization of preparation of volatile oil from Houttuynie Herba-β-cyclodextrin inclusion complex by central composite design-response surface method Study on smelly odor removal of arthworm and β-cyclodextrin inclusion Study on inclusion process of decomposed volatile oil from Atractylodes macrocephala with hydroxypropyl-β-cyclodextrin Optimization of inclusion process of mixed volatile oil of forsythia oil and peppermint oil by colloid mill method