响应面法优化藕节鞣质提取工艺研究

Food and Fermentation Technology(2012)

Cited 23|Views16
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Abstract
采在乙醇体积分数、提取时间、提取次数、液料比、提取温度和pH值6个单因素试验的基础上,利用响应面分析法,以鞣质提取率为评价指标,对藕节鞣质提取的工艺条件进行了优化。结果表明,最佳提取条件为:提取时间6.03h,液料比11.2∶1(mL∶g),乙醇体积分数50%,pH值6.6。在此优化条件下,得到的鞣质提取率为0.0133%,与理论值0.0134971%基本相符。响应面模型与实际情况拟合良好,能较好地预测藕节中鞣质的提取得率。
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Key words
tannins,response surface analysis,nodes of lotus root,extraction
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