Effects of light intensity on morphologic and physiological indexes and safrol content of Cinnamomum pauciflorum seedlings Research on reducing safrole and aristolochic acid A in Asari Radix et Rhizoma based on different processing techniques Determination of Myristicin and Safrol in Volatile Oil of Nutemeg and Its Processed Products by HPLC GC MS Analysis of Essential Oils from the Pericarps of Illicium majus Hook.f.et.Thoms. and I.micranthum Dunn