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Updated: Jul 19, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Comparison of chemical compositions between Dendrobium candidum and Dendrobium nobile]
Xiao-Mei Chen1, Sheng-Yuan Xiao, Shun-Xing Guo
1Biotechnology Research Center, Institute of Medicinal Plant Development, CAMS and PUMC, Beijing 100094, China.
Objective:
To compare the chemical compositions between Dendrobium candidum (D. candidum) and Dendrobium nobile (D. nobile).
Method:
Relative area and content of every chromatographic peak in the ammonic chloroform extracts of D. candidum were compared with those of D. nobile with high performance liquid chromatography-mass spectrometry.
Results:
The relative area of alkaloids accounted for 2.34% and 41.87% in D. candidum and D. nobile, respectively. The relative area of 25 identical compositions took up 97.12% in the total area of D. candidum and 50.09% in that of D. nobile, and contents of 23 composition were higher in D. candidum than those in D. nobile.
Conclusions:
The quantity and contents of alkaloids are remarkably different between D. candidum and D. nobile. However, D. candidum has a higher quality than D. nobile in terms of the same chemical compositions.
