| 响应面分析法优化竹节草黄酮提取工艺 |
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| 引用本文： | 吴冬青,徐新建,张丽,安红钢,林敏.响应面分析法优化竹节草黄酮提取工艺[J].食品科学,2011,32(8):125-128. |
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| 作者姓名： | 吴冬青 徐新建 张丽 安红钢 林敏 |
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| 作者单位： | 河西学院化学系 |
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| 基金项目： | 甘肃省高等学校研究生导师科研项目(1009-08)；
甘肃省高校河西走廊特色资源利用省级重点实验室面上项目(XZ1008) |
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| 摘 要： | 研究超声波辅助法提取竹节草黄酮工艺。利用响应面分析法对影响竹节草黄酮得率的4个主要因素(提取时间、提取功率、乙醇体积分数和固液比)进行研究。结果表明：最佳的竹节草黄酮提取工艺参数为提取时间39min、提取功率70W、乙醇体积分数65%、固液比1:21(g/mL)。在此条件下黄酮得率实测值为20.07mg/g，实测值与回归模型预测值(20.29mg/g)相对误差为1.1%，说明采用响应面法优化得到的提取条件可靠。
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| 关 键 词： | 提取工艺 竹节草 黄酮 响应面法 |
Optimization of Extraction Process for Flavonoids from Polygomun aviculane L. by Response Surface Methodology |
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| WU Dong-qing,XU Xin-jian,ZHANG Li,AN Hong-gang,LIN Min.Optimization of Extraction Process for Flavonoids from Polygomun aviculane L. by Response Surface Methodology[J].Food Science,2011,32(8):125-128. |
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| Authors: | WU Dong-qing XU Xin-jian ZHANG Li AN Hong-gang LIN Min |
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| Affiliation: | Department of Chemistry, Hexi University, Zhangye 734000, China |
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| Abstract: | Ultrasound assistance was applied to extract flavonoids from Polygomun aviculane L. using aqueous ethanol as extraction solvent. Four main factors (extraction time, ultrasound power, ethanol concentration and solid-to-liquid ratio) affecting the yield of flavonoids were optimized by response surface methodology. The results showed that the optimal extraction conditions were extraction time of 39 min, ultrasound power of 70 W, ethanol concentration of 65%, and solid-to-liquid ratio of 1:21 (g/mL). Under these conditions, the observed yield of flavonoids was 20.07 mg/g, and the relative error in comparison with the predicted one was 1.1%, suggesting that the optimal extraction conditions are reliable. |
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| Keywords: | Polygomun aviculane flavonoids response surface method extraction technique |
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