Extraction and determination of flavonoids in Carthamus tinctorius

Abstract Carthamus tinctorius L. also known as: Acanthopanax safflower, red blue flower, it is the Compositae genus of safflower. The active ingredient of Chinese medicine safflower are flavonoids. In order to optimize the extraction method of total flavonoids, extraction with an ultrasonic extraction method, and ultraviolet spectrophotometry was used to determine the content. The results show that, the content of flavonoids in Carthamus tinctorius was 20.6mg/g. Compared with the traditional methods, the ultrasonic extraction method can shorten extraction time and reduce energy consumption.