Extraction optimization of zanthoxylum oil by ethanol and the comparation of components between the water and ethanol extraction.

The alcohol extraction process of zanthoxylum oil was optimized,at the same time,the constituents of zanthoxylum oil which extracted by water extraction and alcohol extraction was analyzed and compared.Using orthogonal experimental method,with zanthoxylum oil extraction rate of the indexes,the extraction reagent,reagent concentration,extraction temperature,extraction time were studied,and using GC-MS to analysis the composition of zanthoxylum oil extracted by alcohol extraction and water extraction.The potimal operation conditions of extracting zanthoxylum oil were as the following: ethanol concentration of 95%,50 ℃ of extraction temperature,5 h of extraction time,the maximum extraction rate is 12.33%;By analysis,large difference in composition by ethanol extract and water,and the content of simple components is high in zanthoxylum oil by ethanol,the content of complex components is low in zanthoxylum oil by water.