Ding Shujing, Dudley Ed, Song Qingbao, Plummer Sue, Tang Jiandong, Newton Russell P, Brenton A Gareth
Biomolecular Analysis Mass Spectrometry Facility, University of Wales Swansea, Singleton Park, Swansea SA28PP, UK.
Rapid Commun Mass Spectrom. 2008;22(6):766-72. doi: 10.1002/rcm.3424.
Terpene lactones are a family of compounds with unique chemical structures, first recognised in an extract of Ginkgo biloba. The discovery of terpene lactone derivatives has recently been reported in more and more plant extracts and even food products. In this study, mass spectrometric characteristics of the standard terpene lactones in Ginkgo biloba were comprehensively studied using both an ion trap and a quadrupole time-of-flight (QTOF) mass spectrometer. The mass spectral fragmentation data from both techniques was compared to obtain the mass spectrometric fragmentation pathways of the terpene lactones with high confidence. The data obtained will facilitate the analysis and identification of terpene lactones in future plant research via the fragmentation knowledge reported here.
萜类内酯是一类具有独特化学结构的化合物，最初是在银杏提取物中被识别出来的。最近，越来越多的植物提取物甚至食品中都报道了萜类内酯衍生物的发现。在本研究中，使用离子阱和四极杆飞行时间（QTOF）质谱仪对银杏中标准萜类内酯的质谱特征进行了全面研究。比较了两种技术的质谱裂解数据，以高置信度获得萜类内酯的质谱裂解途径。通过本文报道的裂解知识，所获得的数据将有助于未来植物研究中萜类内酯的分析和鉴定。
