Study of the Correlation between Effective Components Content and Color Values of Lonicera japonicaBased on Chromatometry
Objective:To study the correlation between the content of active ingredients and color values of Lonicera japonica.Methods:From the view of traditional Chinese medicine experience,colorimeter was used to measure the color of Lonicera japonica powder.Meanwhile,with the methods of HPLC and UV the amount of effective constituents of Lonicera japonica was determined,the correlation had been analyzed.Result:There was significant correlation between L* and chlorogenic acid,total flavonoids(probability value P=0.015 and P=0.006),but not much more correlation with galuteolin.The color index L* was influenced by those three effective constituents to the extent of 43.1%.And with value of L*,a*,b*,the amount of total flavonoids could be speculated to the extent of 46.7%.Conclusion:It could be feasible to evaluate the quality of Chinese Materia Medica with the application of colorimeter.