Hainan Engineering Research Center of Agarwood, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
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.
Molecules. 2021 Jan 15;26(2):436. doi: 10.3390/molecules26020436.
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 () and 2-[2-(4-methoxyphenyl)ethyl]chromone (), 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 Roxb. and , 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 () and () 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 and could be a chemical marker for the WQN agarwood of . In addition, we summarized the odor descriptions of the constituents and established the correlation of scents and chemical constituents in the agarwood.
最近，由于在沉香市场中具有类似的特征，例如高含量的树脂和丰富的两种 2-(2-苯乙基)色酮衍生物，2-(2-苯乙基)色酮（）和 2-[2-(4-甲氧基苯基)乙基]色酮（），栽培的“奇楠”（CQN）沉香已成为沉香市场的一种新型高质量沉香。在这项研究中，我们比较了来自 Roxb.的两种 WQN 沉香（和）以及 CQN 沉香和普通沉香品种的化学成分和香气成分。此外，我们通过 GC-MS 分析了不同的 WQN 沉香和 CQN 沉香样本，结果表明 WQN 沉香和 CQN 沉香之间存在一些显著差异。WQN 的化学多样性大于 CQN 沉香。CQN 沉香中（）和（）的含量高于 WQN 沉香。对于倍半萜，WQN 沉香中的倍半萜的丰富度和多样性更高，特别是愈创木烷和沉香呋喃倍半萜。此外，GC-MS 仅在的 WQN 沉香中检测到愈创木烷呋喃倍半萜，这可能是鉴定的 WQN 沉香的化学标志物。此外，我们总结了成分的气味描述，并建立了沉香中香气和化学成分的相关性。
