摘要
为探究奇楠皮油沉香的特有化学组成及其成分特征,以5 a生的奇楠木树皮为原材料,定点火烧30 s,12个月后采集所得皮油沉香为实验样品。采用气相色谱-质谱联用技术(GC-MS)对其挥发性成分进行全面分析,同时利用超高效液相色谱-质谱联用技术(UHPLC-MS)重点检测其中2-(2-苯乙基)色酮类(PECs)化合物的组成。结果表明,GC-MS共鉴定出47个化合物,包括3个PECs、22个倍半萜类化合物、12个芳香族类化合物、8个脂肪族类化合物和2个单萜类化合物,各分组的相对含量分别为52.08%、29.16%、15.33%、2.50%和0.92%;UHPLC-MS共鉴定出35个PECs,分别为2个双环氧2-(2-苯乙基)色酮(DEPECs),1个单环氧2-(2-苯乙基)色酮(EPECs),3个四氢2-(2-苯乙)色酮(THPECs)和29个flidersia类型2-(2-苯乙基)色酮(FTPECs),且以FTPECs为主。研究初步明确了奇楠皮油沉香的主要化学组成,所得结果可为该香材的鉴定与质量分析提供参考信息。
To investigate the distinctive chemical composition and characteristics of'Qi-Nan'bark-agarwood,bark from 5-year-old'Qi-Nan'trees was used as the raw material.After being locally fire-burned for 30 seconds,the resulting bark-agarwood was collected 12 months later and used as experimental samples.The volatile components were comprehensively analyzed using gas chromatography-mass spectrometry(GC-MS),while ultra-high performance liquid chromatography-mass spectrometry(UHPLC-MS)was employed to specifically determine the composition of 2-(2-phenylethyl)chromones(PECs).The results showed that a total of 47 compounds were identified by GC-MS,including 3 PECs,22 sesquiterpenoids,12 aromatic compounds,8 aliphatic compounds and 2 monoterpenoids,with relative contents of 52.08%,29.16%,15.33%,2.50%and 0.92%,respectively;a total of 35 PECs were identified by UHPLC-MS,which were 2 di-epoxy 2-(2-phenylethyl)chromones(DEPECs),1 mono-epoxy 2-(2-phenylethyl)chromones(EPECs),3 tetrahydro 2-(2-phenylethyl)chromones(THPECs),and 29 flidersia-type 2-(2-phenylethyl)chromones(FTPECs)respectively,and were dominated by FTPECs.The study preliminarily clarified the main chemical composition of'Qi-Nan'bark-agarwood,and the obtained results can provide reference information for the identification and quality analysis of this incense material.
作者
覃凤
肖广义
韦昌文
符韵林
刘德承
QIN Feng;XIAO Guangyi;WEI Changwen;FU Yunlin;LIU Decheng(Guangxi National Qinlian Forest Farm,Qinzhou,Guangxi Zhuang Autonomous Region 535017,China;Guangxi University,College of Forestry,Nanning,Guangxi Zhuang Autonomous Region 530004,China)
出处
《林业与环境科学》
2025年第4期78-85,共8页
Forestry and Environmental Science
基金
广西林业科技项目(2023GXZCLK29)。
