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Molecules
Volume 26
Issue 2
10.3390/molecules26020436
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Article

The Characteristic Fragrant Sesquiterpenes and 2-(2-Phenylethyl)chromones in Wild and Cultivated “Qi-Nan” Agarwood

by
Li Yang
1,2,3,†,
Jin-Ling Yang
1,2,3,†,
Wen-Hua Dong
1,2,3,
Ya-Li Wang
1,2,3,
Jun Zeng
1,2,3,
Jing-Zhe Yuan
1,2,3,
Hao Wang
1,2,3,
Wen-Li Mei
1,2,3,* and
Hao-Fu Dai
1,2,3,*
1
Hainan Engineering Research Center of Agarwood, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
2
Hainan Key Laboratory for Research and Development of Natural Products from Li Folk Medicine, Institute of Bioscience and Biotechnology, Chinese Academy of Agricultural Sciences, Haikou 571101, China
3
Hainan Institute for Tropical Agricultural Resources, Chinese Academy of Agricultural Sciences, Haikou 571101, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Molecules 2021, 26(2), 436; https://doi.org/10.3390/molecules26020436
Received: 16 December 2020 / Revised: 5 January 2021 / Accepted: 13 January 2021 / Published: 15 January 2021
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Abstract

Recently, cultivated “Qi-Nan” (CQN) agarwood has emerged as a new high-quality agarwood in the agarwood market owing to its similar characteristics, such as high content of resin and richness in two 2-(2-phenylethyl)chromone derivatives, 2-(2-phenylethyl)chromone (59) and 2-[2-(4-methoxyphenyl)ethyl]chromone (60), to the wild harvested “Qi-Nan” (WQN) agarwood. In this study, we compared the chemical constituents and fragrant components of two types of WQN agarwood from A. agallocha Roxb. and A. sinensis, respectively, with CQN agarwood and ordinary agarwood varieties. Additionally, we analyzed different samples of WQN agarwood and CQN agarwood by GC-MS, which revealed several noteworthy differences between WQN and CQN agarwood. The chemical diversity of WQN was greater than that of CQN agarwood. The content of (59) and (60) was higher in CQN agarwood than in WQN agarwood. For the sesquiterpenes, the richness and diversity of sesquiterpenes in WQN agarwood, particularly guaiane and agarofuran sesquiterpenes, were higher than those in CQN. Moreover, guaiane-furans sesquiterpenes were only detected by GC-MS in WQN agarwood of A. sinensis and could be a chemical marker for the WQN agarwood of A. sinensis. In addition, we summarized the odor descriptions of the constituents and established the correlation of scents and chemical constituents in the agarwood. View Full-Text
Keywords: cultivated “Qi-Nan” agarwood; wild harvested “Qi-Nan” agarwood; GC-MS; 2-(2-phenylethyl)chromone; sesquiterpene; fragrant component cultivated “Qi-Nan” agarwood; wild harvested “Qi-Nan” agarwood; GC-MS; 2-(2-phenylethyl)chromone; sesquiterpene; fragrant component
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MDPI and ACS Style

Yang, L.; Yang, J.-L.; Dong, W.-H.; Wang, Y.-L.; Zeng, J.; Yuan, J.-Z.; Wang, H.; Mei, W.-L.; Dai, H.-F. The Characteristic Fragrant Sesquiterpenes and 2-(2-Phenylethyl)chromones in Wild and Cultivated “Qi-Nan” Agarwood. Molecules 2021, 26, 436. https://doi.org/10.3390/molecules26020436

AMA Style

Yang L, Yang J-L, Dong W-H, Wang Y-L, Zeng J, Yuan J-Z, Wang H, Mei W-L, Dai H-F. The Characteristic Fragrant Sesquiterpenes and 2-(2-Phenylethyl)chromones in Wild and Cultivated “Qi-Nan” Agarwood. Molecules. 2021; 26(2):436. https://doi.org/10.3390/molecules26020436

Chicago/Turabian Style

Yang, Li, Jin-Ling Yang, Wen-Hua Dong, Ya-Li Wang, Jun Zeng, Jing-Zhe Yuan, Hao Wang, Wen-Li Mei, and Hao-Fu Dai. 2021. "The Characteristic Fragrant Sesquiterpenes and 2-(2-Phenylethyl)chromones in Wild and Cultivated “Qi-Nan” Agarwood" Molecules 26, no. 2: 436. https://doi.org/10.3390/molecules26020436

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