Quality evaluation of Notopterygii Rhizoma et Radix slices by entropy weight and gray relative analysis method / 中草药

ABSTRACT

Objective: The entropy weight method and grey relative analysis (GRA) method were used to evaluate the quality of prepared Notopterygii Rhizoma et Radix (NRR) slices. Methods: The content of extracts (water and ethanol), volatile oil, notopterol and isoimperatorin in 42 batches of NRR slices from different areas was determined. Using GRA, the weight of the entropy weight method was used as the resolution coefficient ρ to construct the quality research model of the slices. Results: The relative correlation degree of each evaluation unit sequence was 0.241 1-0.679 5, which indicated that the quality of NRR slices from different producing areas and manufacturers were different. The implementation of standardized management of NRR traceable slices had a relatively high degree of correlation, and the quality ranking was in the front, which indicated that the implementation of decoction slices standardized management was beneficial to the quality control of NRR slices. The top five samples were S16, S18, S17, S34, and S33 based on these two methods. Conclusion: The comprehensive quality evaluation of NRR slices can be effectively evaluated by GRA and entropy weight method. Entropy weight method improves the reliability of GRA method and the scientificity of quality evaluation of NRR slices.