Rushdi Ahmed I, Adgaba Nuru, Bayaqoob Noofal I M, Al-Khazim Ahmed, Simoneit Bernd I T, El-Mubarak Aarif H, Al-Mutlaq Khalid F
Chair of Green Energy Research, College of Food and Agriculture Sciences, King Saud University, P. O. Box 2460, Riyadh, 11451 Saudi Arabia ; College of Earth, Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331 USA ; Department of Earth and Environmental Sciences, Faculty of Science, Sana'a University, Sana'a, Yemen.
Bee Research Unit, Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, P. O. Box 2460, Riyadh, 11451 Saudi Arabia.
Springerplus. 2014 May 20;3:253. doi: 10.1186/2193-1801-3-253. eCollection 2014.
Propolis is a sticky material mixed by honeybees to utilize it in protecting their hives from infection by bacteria and fungi. The therapeutic properties of propolis are due to its chemical composition with bio-active compounds; therefore, researchers are interested in studying its chemical constituents and biological properties. The main objective of this study is to determine the chemical compositions, characteristics and relative concentrations of organic compounds in the extractable organic matter of propolis samples collected from four different areas in Ethiopia.
The propolis samples were extracted with a mixture of dichloromethane and methanol and analyzed by gas chromatography-mass spectrometry (GC-MS).The results showed that the total extract yields ranged from 27.2% to 64.2% (46.7 ± 19.1%). The major compounds were triterpenoids (85.5 ± 15.0% of the total extracts, mainly α-, β-amyrins and amyryl acetates), n-alkanes (5.8 ± 7.5%), n-alkenes (6.2 ± 7.0%,), methyl n-alkanoates (0.4 ± 0.2%), and long chain wax esters (0.3 to 2.1%).
The chemical compositions of these propolis samples indicate that they are potential sources of natural bio-active compounds for biological and pharmacological applications.
蜂胶是蜜蜂混合而成的粘性物质，用于保护蜂巢免受细菌和真菌感染。蜂胶的治疗特性归因于其含有生物活性化合物的化学成分；因此，研究人员对研究其化学成分和生物学特性感兴趣。本研究的主要目的是确定从埃塞俄比亚四个不同地区采集的蜂胶样品中可提取有机物的化学成分、特征和有机化合物的相对浓度。
蜂胶样品用二氯甲烷和甲醇的混合物萃取，并通过气相色谱-质谱联用仪（GC-MS）进行分析。结果表明，总提取物产率在27.2%至64.2%之间（46.7±19.1%）。主要化合物为三萜类化合物（占总提取物的85.5±15.0%，主要是α-、β-香树脂醇和香树脂醇乙酸酯）、正构烷烃（5.8±7.5%）、正构烯烃（6.2±7.0%）、正构烷酸甲酯（0.4±0.2%）和长链蜡酯（0.3%至2.1%）。
这些蜂胶样品的化学成分表明，它们是用于生物学和药理学应用的天然生物活性化合物的潜在来源。
