Quality Evaluation of Notoginseng Radix et Rhizoma Based on Entropy Weight Method Combined with Grey Relation Analysis
Objective To evaluate the quality of Notoginseng Radix et Rhizoma from different producing areas.Methods Forty-four batches of Notoginseng Radix et Rhizoma from five autonomous prefectures/cities in Yunnan Province were selected as the samples.The moisture,total ash,acid-insoluble ash and alcohol-soluble extract contents were determined based on the general principles of the Chinese Pharmacopoeia(2020 Edition,Volume Ⅳ).The notoginsenoside R1,ginsenoside Rg1 and ginsenoside Rb1 contents were determined by the high-performance liquid chromatography(HPLC)method,and the content of above three saponins(referred to as total saponins)was calculated.The weight of each indicator was calculated by the entropy weight method,and the quality of medicinal materials was evaluated by the grey relation analysis method.Results The contents of the above eight indicators in 44 batches of samples were in the range of 5.13%to 8.84%,2.11%to 4.96%,0.10%to 1.89%,20.18%to 28.69%,0.80%to 1.58%,2.82%to 5.20%,2.79%to 5.00%,6.54%to 11.44%respectively.The weights of alcohol-soluble extract,notoginsenoside R1,ginsenoside Rb1,ginsenoside Rg1 and total saponins were greater.The relative relation degree of 44 batches of medicinal material samples was in the range of 0.163 7 to 0.773 9.There were eleven,fourteen,eight,eight,three batches of samples with grades Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴ,respectively.The quality of samples in Honghe Hani and Yi Autonomous Prefecture was in the range of grades Ⅰ to Ⅴ;there was no sample with grade Ⅴ in Wenshan Zhuang and Miao Autonomous Prefecture,Kunming City and Qujing City;and there was no sample with grade Ⅰ in Chuxiong Yi Autonomous Prefecture.Conclusion The established quality evaluation method can objectively evaluate the quality of Notoginseng Radix et Rhizoma from different producing areas,which can provide a reference for its quality research.
Notoginseng Radix et Rhizomaentropy weight methodgrey relation analysisquality evaluation
万方数据
维普
