荷叶标准汤剂质量评价方法的建立

Quality evaluation methods for standard decoction of Nelumbinis Folium

中药饮片标准汤剂的质量评价方法是中药配方颗粒和经典名方中药复方制剂(汤剂)质量评价的基础。该研究建立荷叶的槲皮素-3-O-葡萄糖醛酸的含量测定方法,建立荷叶标准汤剂的质量评价方法,为荷叶及其汤剂的质量控制提供参考。收集有代表性的荷叶15批制备标准汤剂,计算出膏率、指标成分转移率和溶液pH等参数,采用HPLC建立荷叶及标准汤剂中槲皮素-3-O-葡萄糖醛酸的含量测定方法。荷叶标准汤剂中槲皮素-3-O-葡萄糖醛酸的质量浓度为1.09~3.06 g·L-1,而荷叶碱的质量浓度为0.01~0.17 g·L-1。荷叶标准汤剂平均出膏率为(14.4±2.6)%,槲皮素-3-O-葡萄糖醛酸的平均转移率为(70.7±18.6)%,荷叶碱的平均转移率为(9.6±5.4)%。与荷叶碱相比,槲皮素-3-O-葡萄糖醛酸在荷叶标准汤剂中含量高、转移率稳定,建议作为荷叶标准汤剂的质量控制标志物。该文建立了荷叶标准汤剂的质量评价方法,为所有源于荷叶水煎液的制剂的质量控制方法的制定提供参考。

The quality evaluation method for standard decoction of Chinese herbal slices is the basis for the quality evaluation of granules and preparations of classical formula(decoction)of traditional Chinese medicine. This study aimed to establish a method for the determination of quercetin-3-O-glucuronic acid in Nelumbinis Folium(NF)and its standard decoction, so as to provide reference for the quality control of NF and its standard decoction. Fifteen batches of representative NF were collected to prepare standard decoction, and the parameters of dry extract rate, transfer rate of index component, and pH value were calculated. HPLC was used to establish the content determination method for quercetin-3-O-glucuronic acid in NF and its standard decoction. The concentration range of quercetin-3-O-glucuronic acid in the standard decoction of NF was 1.09-3.06 g·L-1, while the concentration range of nuciferine was 0.01-0.17 g·L-1. The average extraction rate of NF standard decoction was(14.4±2.6)%, the average transfer rate of quercetin-3-O-glucuronic acid was(70.7±18.6)%, and the average transfer rate of nuciferine was(9.6±5.4)%. Compared with Nuciferine, quercetin-3-O-glucuronic acid had a high content and stable transfer rate in standard decoction, and was recommended to be the quality control marker for NF and its standard decoction. This paper establishes a quality evaluation method for NF standard decoction, and can provide reference for the quality control of all preparations derived from NF and its decoction.