Qualitative analysis of multiple compounds in raw and prepared Semen Cassiae coupled with multiple statistical strategies

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EarlyView Article

  • Published: Nov 27, 2017
  • Author: Bing Yang, Jing Hu, Xiaochai Zhu, Yanshuang Zhuang, Fangzhou Yin, Kunming Qin, Baochang Cai
  • Journal: Journal of Separation Science


In China, Semen Cassiae is used clinically to improve eyesight, relieve constipation, and to treat headache and dizziness. Prepared Semen Cassiae is obtained by stir‐frying raw Semen Cassiae until it turned dark brown, micro dilatancy, and overflow aroma. After processing, the therapeutic effects change—the purgation effect is alleviated and the hepatoprotective effect is enhanced. To explore the changes in chemical compositions of Semen Cassiae after processing and clarify the material basis of the changed therapeutic effects, an ultra‐high performance liquid chromatography with quadrupole time‐of‐flight mass spectrometry coupled with automated data analysis software and statistical strategy was developed. As a result, 53 compounds in raw Semen Cassiae and 43 compounds in prepared Semen Cassiae were found, a total of 55 chemical compounds were identified. Principle component analysis and t‐test were processed by Markerview 1.2.1 software. Finally, 39 peaks were found to be the main contributors to the significant difference (p < 0.05) between raw and prepared Semen Cassiae. Compared with raw Semen Cassiae, 19 peaks showed a higher intensity in prepared Semen Cassiae, while the contents of 20 compounds in prepared Semen Cassiae were lower, most of which belonged to naphthopyrones glycosides and anthraquinone glycosides.

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