A chemical investigation by headspace SPME and GC-MS of volatile and semi-volatile terpenes in various olibanum samples
A chemical investigation by headspace SPME and GC-MS of volatile and semi-volatile terpenes in various olibanum samples
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DOI：
10.1016/j.phytochem.2005.04.025
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发表时间：
2005-06-01
期刊：
影响因子：
3.8
通讯作者：
Tchapla, A
中科院分区：
文献类型：
--
作者：
Hamm, S;Bleton, J;Tchapla, A
通过顶空 SPME-GC/MS 分析了六种经过植物来源认证的不同乳香样品，以确定其单萜、倍半萜和二萜成分，作为相关的鉴定标准。乳香和乳香的化学成分非常相似，以乙酸异香樟酯为主要二萜生物标志物。尽管齿叶乳香 (Boswellia serrata olibanum) 也表现出这种生物标志物，但甲基胡椒酚、甲基丁子香酚和一种未鉴定的含氧倍半萜的存在将齿叶乳香 (Boswellia serrata olibanum) 与其他两个物种区分开来。乳香的特征化学成分是二萜生物标志物香香及其氧化物和乙酸衍生物、正辛醇和乙酸正辛酯。乳香不含香香家族的二萜，但含有大量的α-水芹烯二聚体。乳香的化学成分被证明对于每个乳香物种来说都是不同的，这使得可以确定在东非、近东和也门的各个市场购买的乳香样品的分类学起源。此外，萜烯指纹可以识别传统香混合物中使用的乳香的植物来源。此外，这项研究使我们有机会为考古乳香样本指定植物起源。 (c) 2005 Elsevier Ltd. 保留所有权利。
Six different olibanum samples with certified botanical origin were analyzed by headspace SPME-GC/MS in order to define their mono-, sesqui- and diterpenic composition, as pertinent criteria of identification. Boswellia carteri and Boswellia sacra olibanum have quite similar chemical composition, with isoincensole acetate as the main diterpenic biomarker. Although Boswellia serrata olibanum also exhibits this biomarker, the presence of methylchavicol, methyleugenol and an unidentified oxygenated sesquiterpene distinguishes B. serrata olibanum from the two other species. The characteristic chemical compounds of Boswellia papyrifera are the diterpenic biomarkers incensole and its oxide and acetate derivatives, n-octanol and n-octyl acetate. Boswellia frereana olibanum is devoid of diterpenes of the incensole family but contains a high amount of many dimers of alpha-phellandrene. The chemical composition of olibanum, which is demonstrated to be different for each Boswellia species allowed the determination of the taxonomic origin of frankincense samples purchased on various markets in East Africa, in the Near East and in Yemen. Moreover, terpenic fingerprints allowed the botanical origin of olibanum used in traditional incense mixtures to be identified. Furthermore, this study gave us the opportunity to assign a botanical origin to an archaeological frankincense sample. (c) 2005 Elsevier Ltd. All rights reserved.