Optimization of the Best Extraction Process and Extraction Period for Total Flavonoids from Different Varieties of Xanthoceras Sorbifolia Leaves
In order to investigate the optimal extraction process and period for total flavonoids from the leaves of Xanthoceras sorbifolia,this study optimized and selected the best extraction process based on the single-factor experiment of ethanol extraction solvent heating reflux method,and applied orthogonal test design.Total flavonoids were extracted from different varieties of Xanthoceras sorbifolia leaves at different times to determine the best extraction period,providing a theoretical basis for the efficient use of Xanthoceras sorbifolia leaves.The results showed that the best extraction conditions for total flavonoids from Xanthoceras sorbifolia leaves are a material-liquid ratio of 1:20 g/mL,extraction time of 1.5 hours,extraction temperature of 60 ℃,and ethanol concentration of 70％.The new varieties"Mengguan No.1"and"Mengguan No.2"had the highest total flavonoid extraction rates on May 22nd and August 22nd,while the old varieties had the highest extraction rates on May 22nd and June 22nd.Moreover,the total flavonoid content of the new varieties was generally higher than that of the old varieties,with the highest content at the end of August.
Xanthoceras sorbifolialeavestotal flavonoidsextraction processextraction period
万方数据
维普
