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Molecules 2016, 21(7), 911; doi:10.3390/molecules21070911

Characterization and Analysis of 2-(2-Phenylethyl)-chromone Derivatives from Agarwood (Aquilaria crassna) by Artificial Holing for Different Times

Hainan Key Laboratory for Research and Development of Natural Products from Li Folk Medicine, Key Laboratory of Tropical Crop Biotechnology, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, Hainan, China
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Academic Editor: Isabel C. F. R. Ferreira
Received: 23 May 2016 / Revised: 7 July 2016 / Accepted: 7 July 2016 / Published: 13 July 2016
(This article belongs to the Collection Bioactive Compounds)
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Abstract

A total of fifty-six chromones, including seven 5,6,7,8-tetrahydro-2-(2-phenylethyl)-chromones (THPECs), five 5,6-epoxy-2-(2-phenylethyl)chromones (EPECs), seven 5,6:7,8-diepoxy-2-(2-phenylethyl)chromones (DEPECs) and thirty-seven 2-(2-phenylethyl)chromones of the flidersia type (FTPECs), were characterized by HPLC/DAD/ESI/MS/MS in three agarwood samples (from Aquilaria crassna) induced by artificial holing with different holing times. The characteristic fragmentation behavior of DEPECs and EPECs, and the methods to distinguish these four types of chromones by MS analysis were described for the first time. In addition, it was found that the relative contents of DEPECs and EPECs were down-regulated, while the relative contents of THPECs and FTPECs were up-regulated for the samples from two, four and five years of the agarwood formation time. However, the relative contents of six most widespread and abundant FTPECs presented roughly upward based on the formation time. These results could be referenced to distinguish different agarwood samples collected from different formation time. View Full-Text
Keywords: artificial holing agarwood; Aquilaria crassna; HPLC/DAD/ESI/MS/MS; 2-(2-phenylethyl) chromone derivatives artificial holing agarwood; Aquilaria crassna; HPLC/DAD/ESI/MS/MS; 2-(2-phenylethyl) chromone derivatives
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Yang, J.L.; Dong, W.H.; Kong, F.D.; Liao, G.; Wang, J.; Li, W.; Mei, W.L.; Dai, H.F. Characterization and Analysis of 2-(2-Phenylethyl)-chromone Derivatives from Agarwood (Aquilaria crassna) by Artificial Holing for Different Times. Molecules 2016, 21, 911.

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