Study on Difference and Correlation of Traits,Inorganic Elements and Lobetyoli of Dangshen(Codonopsis Radix)from Different Origins in Gansu Province
Objective:To study the differences of the traits,inorganic elements and lobetyoli(LBT)of Dang-shen(Codonopsis Radix)in different origins of Gansu Province,and analyze the correlation to provide a reference for the quality evaluation of Dangshen and the attribution of origin.Methods:The samples of Dangshen from 9 origins were collected.The contents of 10 inorganic elements in Dangshen were detected using flame atomic absorption spectrometry.The content of LBT was determined by high performance liquid chromatography(HPLC).The contents of inor-ganic elements and LBT were analyzed statistically,and the correlation with the traits was studied.Results:There were differences in the traits,contents of inorganic elements and LBT of Dangshen from different origins.The average content of each element was mostly in the order of K＞Mg＞Ca＞Na＞Fe＞Mn＞Co＞Zn＞Ni＞Cu.The LBT content ranged from 0.75 to 6.50 mg/g.Cluster analysis was performed to categorize them into four groups.Correlation analysis showed that LBT content of Dangshen from different origins had significant positive correlation with contents of Mn,Na and Mg.The content of Co had negatively correlation with the trait of"radial striations"in Dangshen.The contents of Fe,Ca had positive correlation with the trait of transverse circular striations in Dangshen.Orthogonal partial least squares discriminant analysis revealed that LBT,K,Mn,Ca,Na and Mg were the main constituent elements for identifying Dangshen from different origins.Conclusion:The traits,contents of inorganic elements and LBT of Dangshen from different origins showed certain correlation,and these three aspects can be combined to effectively evaluate the quality and origin attribution.
Dangshen(Codonopsis Radix)different originstraitinorganic elementlobetyolicorrelationGansu Province
万方数据
维普
