Objective Analysis of Color Difference of Polygoni Multiflori Radix with Different Processing Method and Processing Degree Combined with Traditional Traits

ZHANG Yu-fan; XIANG Le-kang; WANG Xin; YUAN Jin-feng; PENG Shi-tao; LI Fei

doi:10.13422/j.cnki.syfjx.2017200001

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Objective Analysis of Color Difference of Polygoni Multiflori Radix with Different Processing Method and Processing Degree Combined with Traditional Traits

更新时间：2024-01-04

- Objective Analysis of Color Difference of Polygoni Multiflori Radix with Different Processing Method and Processing Degree Combined with Traditional Traits
- Chinese Journal of Experimental Traditional Medical Formulae Vol. 23, Issue 20, Pages: 1-7(2017)
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- DOI：10.13422/j.cnki.syfjx.2017200001
  CLC： R283
- Published：2017
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ZHANG Yu-fan, XIANG Le-kang, WANG Xin, et al. Objective Analysis of Color Difference of Polygoni Multiflori Radix with Different Processing Method and Processing Degree Combined with Traditional Traits[J]. Chinese journal of experimental traditional medical formulae, 2017, 23(20): 1-7.
DOI：

ZHANG Yu-fan, XIANG Le-kang, WANG Xin, et al. Objective Analysis of Color Difference of Polygoni Multiflori Radix with Different Processing Method and Processing Degree Combined with Traditional Traits[J]. Chinese journal of experimental traditional medical formulae, 2017, 23(20): 1-7. DOI： 10.13422/j.cnki.syfjx.2017200001.

摘要

目的：结合传统性状观察，对不同炮制方式下不同炮制程度的制何首乌进行色彩色差分析，为何首乌饮片颜色的客观数据化提供研究基础。方法：观察何首乌炮制品性状，采用CM-5型测色仪测定样品的L，a，b，计算色差值ΔE与总色值E，运用SAS 9.2统计软件进行聚类分析，分析炮制程度与色差检测结果的相关性。结果： 2个产地的何首乌生品及其对照饮片粉末均为黄白色，E为70.31±3；制何首乌对照饮片粉末为棕褐色，E为52.24，与生何首乌对照饮片比较，ΔE为18.63；何首乌炮制后颜色加深，E降低，4种炮制方式显示相同的变化规律；且随炮制时间延长，颜色逐渐由棕黄色、浅棕色、深棕色、棕褐色直至变为棕黑色，其E也由61.11逐渐降至30.45，说明总色值能够表明何首乌的炮制程度。通过聚类分析可区分生品与炮制品，并将不同炮制程度的炮制品聚为一类。结论：色差仪的检测数据可以准确区分生何首乌与制何首乌，且能够客观准确地表达不同炮制程度的制何首乌粉末颜色变化。色彩色差检测可用于何首乌饮片的质量评价。

Abstract

Objective: To analyze color difference of Polygoni Multiflori Radix with different processing method and processing degree combined with traditional traits

and supply a research basis for color data standard of this herb. Method: Traits of processed products of Polygoni Multiflori Radix were observed

CM-5 colorimeter was adopted to measure L

b values of samples

E (total color value) and ΔE (color difference) were calculated.Cluster analysis and SAS 9.2 statistical software were employed to analyze the correlation between samples with different processing degree and the test result. Result: Color of the raw products from 2 origins and the control pieces powder of raw products was yellowish-white

the E was 70.31±3.The color of control pieces powder of Polygoni Multiflori Radix Praeparata was chocolate brown

the E was 52.24

compared with control pieces powder of raw products

the ΔE was 18.63.The color of Polygoni Multiflori Radix deepen after processing

and E decreased

variation laws of the 4 processing methods were the same.With the processing time extended

the color of samples gradually from claybank

light brown

dark brown

chocolate brown and until became brownish-black

the E gradually reduced from 61.11 to 30.45

E could indicate processing degree of Polygoni Multiflori Radix.It can distinguish the raw products and processed products by cluster analysis. Conclusion: Colorimeter tests can distinguish the raw products and processed products of Polygoni Multiflori Radix

and it can objectively and accurately express powder color change of Polygoni Multiflori Radix Praeparata with different processing degree.

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