Isidorov Valery A, Dallagnol Andrea M, Zalewski Adam
Institute of Forest Sciences, Białystok University of Technology, 15-351 Białystok, Poland.
Instituto de Materiales de Misiones (CONICET-UNaM), Felix de Azara 1552, Posadas 3300, Argentina.
Molecules. 2024 Apr 19;29(8):1863. doi: 10.3390/molecules29081863.
The vegetation of the Canary Islands is characterized by a large number of endemic species confined to different altitudinal levels. It can be assumed that these circumstances determine the characteristic features of the chemical composition of local beekeeping products, including propolis. We report, for the first time, the chemical composition of propolis from Tenerife (Canary Islands). The volatile emissions of three propolis samples collected from different apiaries are represented by 162 C-C compounds, of which 144 were identified using the HS-SPME/GC-MS technique. The main group of volatiles, consisting of 72 compounds, is formed by terpenoids, which account for 42-68% of the total ion current (TIC) of the chromatograms. The next most numerous groups are formed by C-C alkanes and alkenes (6-32% TIC) and aliphatic C-C carbonyl compounds (7-20% TIC). The volatile emissions also contain C-C aliphatic acids and C-C alcohols, as well as their esters. Peaks of 138 organic C-C compounds were recorded in the chromatograms of the ether extracts of the studied propolis. Terpene compounds form the most numerous group, but their number and content in different samples is within very wide limits (9-63% TIC), which is probably due to the origin of the samples from apiaries located at different altitudes. A peculiarity of the chemical composition of the extractive substances is the almost complete absence of phenylcarboxylic acids and flavonoids, characteristic of propolis from different regions of Eurasia and North America. Aromatic compounds of propolis from Tenerife are represented by a group of nine isomeric furofuranoid lignans, as well as alkyl- and alkenyl-substituted derivatives of salicylic acid and resorcinol.
加那利群岛的植被以大量局限于不同海拔高度的特有物种为特征。可以假定，这些情况决定了当地养蜂产品（包括蜂胶）化学成分的特征。我们首次报告了来自特内里费岛（加那利群岛）的蜂胶的化学成分。从不同养蜂场采集的三个蜂胶样品的挥发性成分由162种碳 - 碳化合物表示，其中144种通过顶空固相微萃取/气相色谱 - 质谱技术鉴定。挥发性成分的主要类别由72种化合物组成，为萜类化合物，占色谱图总离子流（TIC）的42 - 68％。其次数量最多的类别由碳 - 碳烷烃和烯烃（TIC的6 - 32％）以及脂肪族碳 - 碳羰基化合物（TIC的7 - 20％）组成。挥发性成分还含有碳 - 碳脂肪酸和碳 - 碳醇及其酯类。在所研究蜂胶的乙醚提取物的色谱图中记录到138种有机碳 - 碳化合物的峰。萜类化合物构成数量最多的类别，但其在不同样品中的数量和含量范围非常宽（TIC的9 - 63％），这可能是由于样品来自位于不同海拔高度的养蜂场。提取物化学成分的一个特点是几乎完全没有欧亚大陆和北美不同地区蜂胶特有的苯羧酸和黄酮类化合物。特内里费岛蜂胶的芳香族化合物由一组九种异构的呋喃呋喃型木脂素以及水杨酸和间苯二酚的烷基和烯基取代衍生物表示。
