Extraction Technology of Gardenia Polysaccharide and Hawthorn Flavonoids

Gardenia polysaccharides and hawthorn flavonoids were respectively extracted by ultrasonic assisted extraction means.Optimum extracted conditions of gardenia polysaccharide which get through single factor experiments and orthogonal experiments were：extraction temperature of 50 ℃，extraction time of 60 min，and feed water ratio of 1∶15.The optimum extraction conditions of hawthorn flavonoids were：volume fraction of 80% ethanol solution，extraction temperature of 60℃，extraction time of 45 min，and solid-liquid ratio of 1∶25.Ethanol in hawthorn flavonoids extract was removed through vacuum distillation of 40 ℃，0.1 MPa condition.