星点设计-效应面法优化梓树果实总黄酮的超声提取工艺
Journal of Northwest Forestry University(2010)
Abstract
以梓树果实为材料,利用星点设计—效应面法对总黄酮的超声提取工艺参数进行优化研究。选择乙醇浓度、料液比、提取时间为自变量,总黄酮提取量为因变量,对自变量各水平进行多元线性回归和多项式拟合,采用效应面法选取较佳工艺条件,并进行预测分析。结果表明:梓树果实总黄酮的最佳提取工艺参数为乙醇浓度59%,料液比1∶44,提取时间39 min。在此工艺条件下梓树果实总黄酮提取量测定值为22.289 4 mg.g-1,最佳工艺验证结果与模型预测值相差-1.84%。
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Key words
flavoniods,ultrasonic wave aided extraction,Catalpa ovata fruit,central composite design-response surface methodology
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