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目的对有代表性的购物网站上销量前20位的葛根药材,进行显微及TLC鉴别,初步探讨B2C模式下葛根中药材的质量特点。方法采用显微观察法比较20种葛根药材粉末的显微特征,采用TLC法检测药材中的葛根素。结果 20种葛根药材的显微特征相似,均为正品;采用TLC检测初步说明这两个样品中葛根素的含量较高。结论购物网上所售的20种葛根药材均为正品,但《中国药典》葛根项下包括野葛Uerariae lobatae radix、粉葛P.thomsonii radix,且两者活性成分的含量及临床应用各有不同。该研究可初步指示B2C模式下葛根药材存在的质量问题。
OBJECTIVE To identify the top 20 Chinese medicinal materials of Pueraria on the representative shopping websites by microscopy and TLC, and to explore the quality characteristics of Pueraria Chinese medicinal materials in B2C mode. Methods The microscopic characteristics of 20 kudzu root drug powders were compared by microscopic observation. The puerarin was determined by TLC. Results The microscopic characteristics of 20 Pueraria lobata herbs were similar and both were authentic. The TLC assay showed that the content of puerarin was high in both samples. Conclusion The 20 kudzu medicinal materials sold on the internet are authentic products, but the kudzu root contains Uerariae lobatae radix and P.thomsonii radix under the Chinese Pharmacopoeia, and the content and clinical application of the two active ingredients are different. This study may initially indicate the quality problems of pueraria root in B2C mode.