Comprehensive Quality Evaluation of Glycyrrhiza uralensis Fisch.Based on Chemometrical Modeling Analysis
In order to explore the feasibility of principal component analysis and correlation analysis on comprehensive quality evaluation of Glycyrrhiza uralensis Fisch.from different planting sites and times of Zhangye city,Gansu province by principal component analysis and correlation analysi,fourteen batches of Glycyrrhiza uralensis Fisch.of different producing areas are measured with liquiritin apioside,liquiritin,glycyrrhizic acid,extractum,polysaccharide,total flavonoids,crude fiber and water content,and the correlation analysis and principal component analysis are carried out.Correlation analysis shows that there are potential correlations among the indexes.There is significant correlation between extractum and total flavonoids and glycyrrhizic acid,liquiritin and glycyrrhizic acid,total flavonoids and liquiritin apioside and liquiritin,liquiritin apioside and liquiritin.The correlation between other indicators is weak or not significant.The comprehensive principal component evaluation shows that the quality of sample No.14 is the best,and the quality of Glycyrrhiza uralensis Fisch.in Sunan County is generally higher.Overall,this indicates that correlation analysis and principal component analysis can be used for quality analysis and comprehensive evaluation of Glycyrrhiza uralensis Fisch.in different locations,which can provide reference for multi-index evaluation of Glycyrrhiza uralensis Fisch.,and lay a foundation for further establishing a comprehensive quality evaluation system of Glycyrrhiza uralensis Fisch..
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