Objective:The aim of the study was to explore the optimum processes of extraction gastrodine from Rhizoma gastrodiae by ultrasonic and microwave.
Methods:With the content of gastrodine as index, HPLC was used to determine gastrodin content. Factors influencing ultrasonic and microwave extraction of gastrodine from Rhizoma Gastrodiae was studied by one-factor tests. The effects of material/liquid ratio (g/mL), extraction temperature,power and length of extraction time on the extraction of gastrodine were...