Supercritical CO2 Extraction of Flavonoids from Apocynum venetum and Its Antimicrobial Activity In order to solve the problem of waste of flavonoids in Apocynum venetum fibers by traditional degumming process, the Apocynum venetum fibers were pretreated by supercritical degumming, and the effective components of flavonoids were extracted by supercritical CO2. Four main factors affecting the […]