[关键词]
[摘要]
目的 对川产姜黄颜色值与主要化学成分姜黄素类成分（姜黄素、去甲氧基姜黄素、双去甲氧基姜黄素、总姜黄素）含量之间的相关性进行研究。方法 基于"辨状论质"理论，采用分光测色计对川产姜黄的切片与粉末颜色值进行测量，结合药材主要化学成分的含量，对二者进行相关性分析。结果 川产姜黄粉末的颜色值L*、b*、ΔE*ab与姜黄素类各成分含量呈现极显著的负相关关系，相关系数均在0.4左右；颜色值a*与姜黄素类各成分含量呈现极显著的正相关关系，相关系数均在0.7左右。结论 川产姜黄的颜色值a*相较于其他值相关程度更高，提示可通过姜黄粉末a*值预测和判断川产姜黄药材品质，从而验证"辨状论质"理论在姜黄药材鉴别中的科学性，为建立快速鉴别姜黄品质的评价体系奠定基础。
[Key word]
[Abstract]
Objective The research is about the correlation of the color values of
Curcuma longa in Sichuan and the content of the main composition (curcumin, demethoxycurcumin, bisdemethoxycurcumin, and curcuminoids).
Methods Based on the theory of "distinguish quality by the appearance of medicine", CM-5 spectro-colorimeter was used to measure the color values of slices and powders of
C. longa in Sichuan, and combining to the content of the main composition of these medicines to analyze the correlation between them.
Results It showed that there was a significant negative correlation between the color values of powders of
C. longa in Sichuan (L
*, b
*, and ΔE
*ab) and the content of the main component of medicines. The correlation coefficients were all around 0.4; Meanwhile, there was a significant positive correlation between the color value a
* of
C. longa in Sichuan and its main composition content, and the correlation coefficients were all around 0.7.
Conclusion The color value a
* of
C. longa powders produced in Sichuan has higher correlation than other color values. It prompted that we can predict and judge the quality of
C. longa in Sichuan by color value a
* of
C. longa powders, thereby verifying the scientificity of "distinguish quality by the appearance of medicine" in the identification of
C. longa. The research can lay the foundation of establishing the evaluation system of
C. longa, which can rapidly identify the quality of
C. longa.
[中图分类号]
[基金项目]
国家中药标准化项目（ZYBZH-Y-SC-40）；四川省青年基金资助项目（2016JQ0056）；四川省科技支撑计划（2017SZ0191），省公益性科研院所基本科研项目（17-4-484）；四川省公益性科研院所基本科研项目（2016078）；四川省中医药管理局川产道地药材品质评价及认证标准项目（2016Z011）
