摘要
以贵州竹屑为原料,分别采用乙醇浸提法与闪式提取法两种方法提取黄酮,通过正交试验筛选出较优工艺参数。乙醇浸提法提取竹屑黄酮的优惠工艺:乙醇浓度50%,提取温度80℃,固液比1∶20,提取时间4h,最终竹屑黄酮的提取率为4.970mg/g;采用闪式提取法提取竹屑黄酮的最佳工艺为:乙醇浓度50%,料液比1∶45,提取时间180s,得到竹屑黄酮的提取率为3.943mg/g。结果表明乙醇浸提竹屑黄酮效果优于闪式提取法。
Flavonoids were manufactured from bamboo saw -dusts by means of ethanol extraction and flash extraction device respectively. Results showed ethanol extraction of preferential process： ethanol concentration 50%, extraction temperature 80 ℃, solid - liquid ratio 1：20 and extraction times 4h obtain 4. 970mg/g flavonoids content. The flash type extraction of preferential process： ethanol concentration 50% ,solid -liquid ratio 1：45 and extraction times 180s obtain 3. 943mg/g flavonoids content. It turns out that ethanol extraction is better than flash extraction.
出处
《贵州化工》
2011年第6期4-6,共3页
Guizhou Chemical Industry
关键词
竹屑
浸提法
闪式提取法
黄酮
bamboo sawdust
ethanol extraction
flash type extraction
flavonoids
