Method for efficiently extracting ergosterol

The invention provides a method for efficiently extracting ergosterol, and belongs to the technical field of fine chemical engineering. The method comprises the following steps: mixing yeast with alkali and a sodium chloride solution, saponifying, extracting with methylbenzene, washing with water, concentrating, refining and drying in vacuum to obtain the ergosterol finished product. According to the method disclosed by the invention, industrial production of ergosterol is realized only by using common chemical raw materials and auxiliary materials such as yeast, alkali, sodium chloride, methylbenzene, activated carbon, ethanol and the like and common chemical equipment, and the method has the advantages of simplicity and convenience in production and low production cost; the methylbenzene has the characteristics of low price, low boiling point, easiness in toxicity removal and the like, so that the method is safer; more importantly, through reasonable selection of the proportion of each ...