云南红豆杉果皮黄酮的提取及其抗氧化性能

Journal of Nanchang University(Engineering & Technology)(2018)

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Abstract
以红豆杉果皮为原料,通过乙醇溶剂提取有效成分黄酮.实验研究了液料比、乙醇体积分数、超声时间、提取时间等对黄酮提取率的影响,并用正交试验方法对提取工艺进行优化.结果表明:在料液比为1∶40,乙醇体积分数为55%,超声时间为90 min的优化条件下,黄酮的提取率为6.86 mg·g-1.羟基自由基清除能力实验结果显示,红豆杉果皮黄酮比同浓度的抗坏血酸更强,是天然抗氧化剂.
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