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To establish a quality evaluation method for Chaihu Yujinxiang granules based on fingerprint, multi-component content determination, and chemical pattern recognition, providing important basis for its quality control.
The “Chinese Medicine Chromatographic Fingerprint Similarity Evaluation System (2012 Edition)” was used to establish HPLC fingerprints of 10 batches of Chaihu Yujinxiang granules, identify common peaks, and perform similarity evaluation. HPLC method for determining the content of four active ingredients, namely liquiritin apioside, liquiritin, liquiritigenin, and isoliquiritigenin was established. Cluster analysis and orthogonal partial least squares discriminant analysis were conducted on Chaihu Yujinxiang granules using SPSS 26.0 and SIMCA 14.1 software. Differential components affecting the quality of Chaihu Yujinxiang granules were screened based on the criterion of variable importance projection (VIP) value>1.0.
The established fingerprint and multi-component content determination method achieved satisfactory results after methodological investigation. The similarity of the fingerprint of 10 batches of Chaihu Yujinxiang granules ranges from 0.953 to 0.977, with a total of 11 common peaks, 4 of which were identified. The average contents of active ingredients such as liquiritin apioside, liquiritin, liquiritigenin, and isoliquiritigenin in 10 batches of Chaihu Yujinxiang granules were 2.71 mg·g-1, 10.17 mg·g-1, 2.47 mg·g-1, and 1.86 mg·g–1, respectively. The results of cluster analysis and principal component analysis indicates that 10 batches of Chaihu Yujinxiang granules could be clustered into two categories, with S3, S6, and S8 in one category and the rest in another category. The VIP values of peaks 2, 9, 7, and 3 were above 1.0.
The established fingerprint and content determination method are stable and reliable. Combined with chemical pattern recognition technology, they can be used to evaluate the overall quality of Chaihu Yujinxiang granules. Peaks 2, 9, 7, and 3 are differential components that affect the quality of Chaihu Yujinxiang granules.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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