| abstract |
The invention relates to a method for simultaneously extracting burdock leaf essential oil and chlorogenic acid, (1) obtaining burdock leaf serous fluid; (2) performing ultrasonic-enzymolysis; (3) CO 2 2 Performing supercritical fluid extraction, wherein the collected extract is the burdock leaf essential oil; (4) adding the liquid extracted in the step (3) into a D101B resin adsorption column for adsorption; (5) and (4) carrying out macroporous resin adsorption according to the method in the step (4), collecting eluent of the target product, concentrating under reduced pressure, and recrystallizing the concentrated solution to obtain a chlorogenic acid product. The invention provides a method for simultaneously extracting the essential oil and the chlorogenic acid from the burdock leaves, and the yield of the essential oil and the chlorogenic acid is higher, thereby realizing the maximization of resource utilization. |