Ultrasonic Extraction and Component Analysis of Volatile Oil from Prunus Tomentosa Thunb Core

摘要

AIIM To explore the optimal ultrasonic extraction process of volatile oil from prunus tomentosa and analyze the component. METHODS The orthogonal test was carried out with volatile oil rate t as the index, the grinding degree of material, solvent, ratio of material to liquid, ultrasonic time as factors by ultrasonic extraction method, the components were analyzed by GC-MS. RESULTS The main factors that affect the extraction of volatile oil from Prunus tomentosa thunb is extraction, followed by ultrasonic time and grinding degree. A_3B_2C_1D_3 was the best extraction condition: Selection of ethyl ether as extraction agent, the particle size is 30 mesh, the 1:10 ratio of material to liquid, ultrasonic time for 40 min. GC-MS techniques were applied to analyze the chemical constituents of volatile oil, six kinds of main components were isolated and identified, accumulating for 92.82% of the total volatile oil content. CONCLUSION The Ultrasonic extraction time is short, easy operation, high yield, experiment verified that the extraction rate is 0.6270% under the optimum extraction conditions and identified six main components.