The ripe dried seed of Oroxylum indicum (L.)Vent. is a kind of Chinese traditional medicine. Most of the relevant literatures abroad and domestic of flavonoids from Oroxylum indicum were studying about the pharmacology, extraction, separation and identification of them, and alcohol-refluxing method was used mostly to extract, while the process optimization of extraction technology and ultrasound-assisted method used to. extract total flavonoids of Oroxylum indicum have not. been reported. Only the c...