Identification of Different Origins of Magnoliae Officinalis Cortex based on the Combination of Multi-component Quantitative Analysis and Chemometrics
Objective:To establish the method for the identification of different origin of Magnoliae Officinalis Cortex based on multi-component quantitative analysis and chemometrics.Methods:Ultra performance liquid chromatography(UPLC)was used to determine the contents of eight chemical components,namely syringin,magnocurarine,magnoflorine,magnoloside B,magnoloside A,honokiol,magnolol and piperitylmagnolol,in different original Magnolia officinalis cortex.Cluster analysis,principal component analysis,Fisher discriminant analysis,and orthogonal partial least squares discriminant analysis were used to screen key identification indicators for different original Magnolia Officinalis Cortex,and a identification model was established.Results:The contents ratios of magnoloside B to magnoloside A and honokiol to magnolol could be used as the key indexes for the preliminary identificaiton of the origin,and the Fisher's Linear Discriminant Functional Score could be clearly distinguished the different origins.Conclusion:The combination of multi-component quantitative analysis and chemometrics can identify different origin of Magnoliae Officinalis Cortex,which can provide a reference for the identification of multi-basal origin herbs.