The β-CD assisted extraction was used to extract total flavonoids from by-products of tea dust-tea.Based on the single factor experiment,the effects of material-to-solvent ratio,β-CD content and extraction temperature on the extraction efficiency of total flavonoids were investigated with the Box-Behnken experiment and the response surface analysis.A quadratic polynomial model was established and verified.The optimal conditions of extracting total flavonoids were solid-to-solvent ratio of 1∶61.83 (g∶ mL),β-CD content of 8.27％,extraction temperature of 53℃.Under these conditions,the extraction efficiency of total flavonoids was 7.843％,close to the predicted value of 7.835％.Compared with the traditional boiling reflux method and ultrafine grinding extraction technology,the 3-CD assisted extraction was efficient,environment friendly with high extraction rate.
NETL
NSTL
维普
万方数据
