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Chemistry and Industry of Forest Products ›› 2017, Vol. 37 ›› Issue (2): 72-78.doi: 10.3969/j.issn.0253-2417.2017.02.009

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Chemical Constituents from Tripterygium wilfordii Hook. f. and Their Thermal Stability

LIU Jianqun, WU Qiushan, YU Zhaofen   

  1. Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
  • Received:2016-05-30 Online:2017-04-25 Published:2017-05-04

Abstract: Seven compounds were isolated from the radix of Tripterygium wilfordii Hook. f.. Their structures were identified as β-sitosterol(1), syringaldehyde(2), tripdiolide(3), β-hydroxypropiovanillone(4), 5, 5'-dimethoxylariciresinol(5), neociwujiaphenol(6) and wilfordoside A(7). Compounds 2, 4, 5 and 6 were isolated from genus of T. wilfordii for the first time. Thermal decomposing curves of compounds 3, 6, wilforlide A and demethylzeylasteral were obtained in the nitrogen atmosphere by TG-DTG and DTA techniques. The results indicated that the four tested compounds should be stable under 200 ℃. This study could lay a foundation for the quality standard and roasting mechanism of T. wilfordii.

Key words: Tripterygium wilfordii, chemical constituent, thermal stability

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