Shandong Science ›› 2022, Vol. 35 ›› Issue (5): 10-15.doi: 10.3976/j.issn.1002-4026.2022.05.002

• Traditional Chinese Medicine and Natural Active Products • Previous Articles     Next Articles

Identification of antioxidant components in peony flowers through on-line screening using high performance liquid chromatography-quadrupole time of flight mass spectrometer

TIAN Xuan(), LIU Yu, ZHU Wen-qing, ZHENG Zhen-Jia*()   

  1. Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, China
  • Received:2021-07-29 Published:2022-10-20 Online:2022-10-10
  • Contact: ZHENG Zhen-Jia E-mail:18905401763@163.com;zhengzhenjia@sdau.edu.cn

Abstract:

A high performance liquid chromatography-quadrupole time of flight mass spectrometry (HPLC-Q-TOF-MS) combined with on-line removal of 1,1-diphenyl-2-picrylhydrazyl (DPPH) model was established for the rapid screening and identification of antioxidant active ingredients in peony flowers. Waters X-Bridge C18 chromatographic column was used with acetonitrile-water (0.1% formic acid) as the mobile phase. The peony flower samples were analyzed using electrospray positive and negative ion modes. The samples separated using HPLC were mixed with free-radical solution, and the mixture was entered into HPLC-Q-TOF-MS for rapid identification. In total, 15 ingredients and 5 antioxidant compounds were identified in the negative ion mode. This method is a simple method for rapid screening and identification of antioxidant compounds in a complex system of natural products. Furthermore, it can also provide scientific basis for further studies on peony flower.

Key words: peony flower, antioxidant activity, on-line screening, HPLC-Q-TOF-MS

CLC Number: 

  • O657.72

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