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紫花地丁黄酮体外抗氧化实验

Guangzhou Chemical Industry(2017)

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Abstract
运用溶剂提取法提取紫花地丁黄酮类成分,采用DPPH法和水杨酸清除自由基法测定紫花地丁黄酮体外抗氧化活性.研究发现,黄酮的IC50为0.4632 mg/mL,抗坏血酸IC50的为0.977 mg/mL,紫花地丁总黄酮抗氧化能力与其质量浓度均呈正相关性比例,即随质量浓度的增大其抗氧化能力也增大.结果表明,清除率与浓度存在明显的量效关系,随着质量浓度增大,总抗氧化能力也增加.
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