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本文采用微波辅助法,分别用水、β-环糊精水溶液做溶剂提取茵陈黄酮。以总黄酮提取率为考察指标,通过正交实验设计考察了提取时间、料液比、微波功率和环糊精浓度对总黄酮提取率的影响,优选了最佳提取条件。结果表明,水法提取茵陈黄酮的最佳条件为:料液比1:20(g:mL)、提取时间10min、微波功率250w,最佳提取条件下总黄酮提取率为2.90%;β-环糊精水溶液法提取茵陈黄酮的最佳条件为:β-环糊精质量分数1.0%、提取时间8min、料液比1:20(g:mL)、微波功率250w,最佳提取条件下的总黄酮提取率为3.68%。β-环糊精水溶液法提取茵陈黄酮的提取率较水法提取高26.7%。
In this paper, microwave-assisted method was used to extract capillaris flavonoids with water and β-cyclodextrin aqueous solution, respectively. The extraction rate of total flavonoids was taken as the index, and the effects of extraction time, ratio of solid to liquid, microwave power, and cyclodextrin concentration on the extraction rate of total flavonoids were investigated through orthogonal experiments. The optimal extraction conditions were optimized. The results showed that the optimum conditions for water extract of capillaris flavonoids were as follows: ratio of material to liquid 1:20 (g:mL), extraction time 10 min, microwave power 250 w, extraction rate of total flavonoids was 2.90% under optimal extraction conditions; β- The optimum conditions for extracting capillaris flavone with aqueous solution of cyclodextrin were: β-cyclodextrin mass fraction 1.0%, extraction time 8 min, solid-liquid ratio 1:20 (g:mL), microwave power 250 w, optimum extraction conditions The extraction rate of total flavonoids was 3.68%. The extraction rate of capillaris flavonoids by β-cyclodextrin aqueous solution was 26.7% higher than that of water extraction.