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Original Article | Open Access

Color spaces of safflower (Carthamus tinctorius L.) for quality assessment

Manfei Xua,b, Chenzhao Dub, Na Zhangb, Xinyuan Shib,c,d, Zhisheng Wub,c,d( ), Yanjiang Qiaob,c,d( )
Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
Beijing University of Chinese Medicine, Beijing 100102, China
Beijing Key Laboratory for Basic and Development Research on Chinese Medicine, Beijing, China
Key Laboratory of TCM-information Engineer of State Administration of TCM, Beijing, China

Peer review under responsibility of Beijing University of Chinese Medicine.

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Abstract

Objective

In this study, safflower (Carthamus tinctorius L.) was taken as a representative example to examine the application of color characteristics to evaluate quality.

Methods

A computer vision system was established for the objective and nondestructive assessment of color using image processing algorithms. Color parameters were investigated based on the RGB, L*a*b and HSV color spaces. The content of hydroxysafflor yellow A (HSYA), a major bioactive constituent of safflower, was determined by high-performance liquid chromatography. The relationship between HSYA content and color values was investigated by Pearson correlation analysis. A multiple linear regression model was established to predict the HSYA content from color values.

Results

The red color and lightness of safflower were found to be significantly related to HSYA content. The prediction equation obtained by multiple regression was reliable with an R2 value of 0.805 (P <.01).

Conclusion

The results suggest that the computer vision technique could be used as a promising and non-destructive technology for color measurement and quality evaluation of CHM.

Keywords

Computer visionCarthamus tinctorius L.ColorQuality evaluation

References

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Journal of Traditional Chinese Medical Sciences
Volume 3 Issue 3,
July 2016
Pages 168-175
DOI: 10.1016/j.jtcms.2016.11.004

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Cite this article:
Xu M, Du C, Zhang N, et al. Color spaces of safflower (Carthamus tinctorius L.) for quality assessment. Journal of Traditional Chinese Medical Sciences, 2016, 3(3): 168-175. https://doi.org/10.1016/j.jtcms.2016.11.004

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Received: 22 March 2016
Accepted: 02 June 2016
Published: 30 November 2016
© 2016 Beijing University of Chinese Medicine.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).