Quantitative Determination of Phenolic Characteristic Components in Taraxaci Herba and Its Correlation Analysis of Quality Characterization of Specific Chromatogram
CHEN Meng-jie, KONG Jing, ZHANG Yuan-yuan, et al. Quantitative Determination of Phenolic Characteristic Components in Taraxaci Herba and Its Correlation Analysis of Quality Characterization of Specific Chromatogram[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(16): 12-20.
CHEN Meng-jie, KONG Jing, ZHANG Yuan-yuan, et al. Quantitative Determination of Phenolic Characteristic Components in Taraxaci Herba and Its Correlation Analysis of Quality Characterization of Specific Chromatogram[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(16): 12-20. DOI: 10.13422/j.cnki.syfjx.20181403.
Objective: To establish the method of quantitative determination for phenolic characteristic components in Taraxaci Herba
and establish the correlation analysis of quality characterization of its phenolic characteristic spectrum.Evaluation mode of correlation analysis was used to evaluate the quality of Taraxaci Herba pieces effectively and accurately. Method: HPLC was used to determine the contents of characteristic components in 15 batches of Taraxaci Herba pieces
including protocatechuic acid
monoacyl tartaric acid
chlorogenic acid
caffeic acid
p-coumaric acid
isochlorogenic acid A
cichoric acid
galuteolin and luteolin.The phenolic characteristic spectrum of Taraxaci Herba pieces was established.The quality of 15 batches of Taraxaci Herba pieces were characterized based on the number and chemical type of peaks in characteristic spectrum.The quantity of 15 batches of Taraxaci Herba pieces was represented based on the content and peaks area of characteristic components[protocatechuic acid
monoacyl tartaric acid
chlorogenic acid
caffeic acid
p-coumaric acid
isochlorogenic acid A
cichoric acid
galuteolin
luteolin
phenolic acids(characterized by caffeic acid) and flavonoids(characterized by luteolin)]in characteristic spectrum.Correlation analysis of quality and quantity of Taraxaci Herba pieces was then performed based on reference pieces. Result: The characteristic components of Taraxaci Herba pieces had a good linear relationship and the methodological investigation were in accordance with the quantitative requirements.As the reference substance
characteristic spectrum of batch 1 contained 14 characteristic peaks(10 peaks of phenolic acids and 4 peaks of flavonoids)
which all appeared on the chromatograms of 15 batches of Taraxaci Herba pieces.Taking the evaluation mode of quality characterization and correlation analysis
S2 pieces had higher relevance with the reference piece.Consolidated quality characterization and correlation analysis
the quality of S6
S12
S3
S10
S1 were excellent. Conclusion: The established HPLC for determining the contents of characteristic components of Taraxaci Herba is simple and accurate.The mode for the quality characterization and correlation analysis of phenolic characteristic spectrum can be used to analyze the quality and application effectiveness of Taraxaci Herba pieces
and it can effectively and accurately evaluate the quality of this pieces.