PURIFICATION AND CONSERVATION EXTENSION METHOD OF ZANTHOXYLUM SCHINIFOLIUM OIL

摘要

The present invention relates to a method for effectively removing impurities from Zanthoxylum schinifolium oil and preventing the acidification thereof to increase storability. Impurities are removed from Zanthoxylum schinifolium oil via a settling process after an oil extraction process. However, the Zanthoxylum schinifolium oil is acidified during the settling process, and sediment or the like is visible to the naked eye so an efficient refinement technique is required. Furthermore, the Zanthoxylum schinifolium oil is rapidly acidified so the safety problem can occur. According to the present invention, provided is a technique for efficiently refining Zanthoxylum schinifolium oil in a short period of time and preventing the acidification thereof by using a material which is safe for the human body. A refinement and storability extension method of Zanthoxylum schinifolium oil comprises a step of mixing Zanthoxylum schinifolium oil and phosphoric acid to degum the Zanthoxylum schinifolium oil. The Zanthoxylum schinifolium oil is further mixed with acetic acid, and the Zanthoxylum schinifolium oil, the phosphoric acid, and the acetic acid are mixed in contents of 99.4-99.9 wt%, 0.05-0.3 wt%, and 0.05-0.3 wt%, respectively.