Flavonoids in propolis throat tablet was extracted by 95% ethanol, and then the content was detected with spectrophotometry. The content of flavonoids in propolis throat tablet was 0.68%.
利用95%的乙醇对蜂胶润喉片中黄酮类化合物进行提取、采用分光光度法进行含量分析，蜂胶润喉片中黄酮类化合物的含量达0.68%。
Flavonoids are the most important biological substances in propolis, which have many biological activities such as antioxidative and antibacterial activities.
类黄酮类化合物具有抗氧化、抗菌等诸多生物活性，是蜂胶中最重要的生物活性物质。
We present here an overview of current analytical methods for measuring flavonoids in propolis.
综述了国内外蜂胶中类黄酮类化合物分析方法的研究进展。
The experimental results showed that pinocembrin, chrysin and galangin were the main flavonoids in Chinese propolis.
实验结果表明：乔松素、白杨素和高良姜素是中国蜂胶的主要黄酮类化合物；
Methods: Ethanol as solvent, using ultrasonic extraction method of total flavonoids in propolis extracted using ultraviolet-visible spectrophotometry of total flavonoids were determined.
方法：以乙醇为溶剂，采用超声提取的方法对蜂胶中的总黄酮进行提取，利用紫外-可见分光光度法对总黄酮的含量进行测定。
Objective To study the extraction method of total flavonoids in Brazilian propolis.
目的建立巴西蜂胶最佳提取工艺。
Objective to study the impact of beeswax removal on the content of total flavonoids separated from propolis.
目的蜂胶除蜡后对蜂胶中黄酮类化合物含量的影响。
Objective:To separate and identify the active flavonoids from Beijing Propolis.
目的：分离鉴定北京蜂胶中的黄酮类成分。
Objective By determining the content of total flavonoids in propolis from different areas to provide more bases for the quality control of propolis.
目的测定不同产地蜂胶中总黄酮的含量，为蜂胶的质量控制提供更多依据。
Results the content of total flavonoids is the highest in the propolis produced in Shandong province.
结果山东产的蜂胶中总黄酮的含量最高。
Results the content of total flavonoids is the highest in the propolis produced in Shandong province.
结果山东产的蜂胶中总黄酮的含量最高。
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