湖北虎杖主要化学成分的含量分析及其与色差的相关性研究

Content analysis of main chemical components and its correlation with color difference of Polygonum cuspidatum in Hubei province

中文关键词:  虎杖  虎杖苷  白藜芦醇  大黄素  色差

英文关键词:Polygonum cuspidatum  polydatin  resveratrol  emodin  color difference

中文摘要:

      目的 分析湖北虎杖中主要成分的含量与粉末色差值, 评价不同来源和产地药材质量, 并探讨成分含量与颜色之间的相关性。方法 采用高效液相色谱法测定58批药材中虎杖苷、白藜芦醇和大黄素含量, 利用色差仪测定粉末色差值, 分析主要成分与色差的相关性。结果 野生品与栽培品的大黄素含量差异有统计学意义(P<0.01); 总白藜芦醇的质量分数均达到了1.0%; 虎杖苷的含量均达到了药典标准; 大黄素与颜色指标值L*、a*存在极显著相关关系(P<0.01)。结论 荆州公安县章庄铺、黄冈英山县红山镇、荆州松滋县杨林市镇等地药材质量较优, 可作为优质种质资源进行更深入的研究, 通过分析虎杖粉末色差值, 可以预测大黄素的含量。

英文摘要:

      Objective To analyze the content and powder color difference of the main components in Polygonum cuspidatum, evaluate the quality of medicinal materials from different sources and producing areas, and explore the correlation between the content of components and color. Methods The contents of polydatin, resveratrol and emodin in 58 batches of medicinal materials were determined by high performance liquid chromatography, and the color difference value of powder was determined by colorimeter. The correlation between main components and color difference was analyzed. Results There was significant difference in the content of emodin between cultivated and wild products (P<0.01). The content of total resveratrol reached 1.0%. The content of polydatin reached pharmacopoeia standard. Emodin was significantly correlated with color index values L* and a* (P<0.01). Conclusion The quality of medicinal materials is better in Zhangzhuangpu, Gongan county, Jingzhou, Hongshan town, Yingshan county, Huanggang, Yanglin town, Songzi county, Jingzhou are better, and can be used as high-quality resources for further study. The color difference value of Polygonum cuspidatum powder can predict the content of emodin.