摘要
为确定山楂叶中总黄酮的最佳提取工艺,选取乙醇体积分数、提取时间、提取温度、料液比4个影响提取效果的因素进行单因素试验,并利用Design-Expert 7进行响应面分析试验.结果表明,山楂叶中总黄酮的最佳提取工艺条件为:乙醇体积分数65%,提取温度70℃,提取时间60 min,料液比42∶1,此条件下黄酮提取量为7.44mg.g-1.
To optimize the process for flavnonoids extraction from Hawthorn leaves, a series of singlefactor experiments were conducted to investigate the effects of ethanol concentration, extraction time and temperature,and liquid-to-solid ratio on flavnonoids yield. And response surface analysis experiments were conducted by using the design-expert 7 software. The optimal extraction conditions were found as follows： ethanol concentration of 65% and liquid-to-solid ratio of 42：1 for an extraction time of 60 min at 70 ℃. Under the conditions,the yield of flavonoids was 7.44 mg · g^-1
出处
《河南农业大学学报》
CAS
CSCD
北大核心
2011年第6期712-715,共4页
Journal of Henan Agricultural University
基金
国家科技部星火计划项目(2004EA750044)
关键词
山楂叶
黄酮
响应面分析
工艺优化
hawthorn leaves
flavonoid
response surface methodology
process optimization
