Kelen Mustafa, Tepe Bektas
Suleyman Demirel University, Faculty of Agriculture, Department of Horticulture, 32260 Isparta, Turkey.
Bioresour Technol. 2008 Jul;99(10):4096-104. doi: 10.1016/j.biortech.2007.09.002. Epub 2007 Oct 23.
Essential oils of three different Salvia species [Salvia aucheri var. aucheri (endemic), Salvia aramiensis and Salvia pilifera (endemic)] were screened for their possible antioxidant and antimicrobial properties as well as their chemical compositions. According to the gas chromatography (GC)/EIMS (gas chromatography/electron impact mass spectrum) analysis results; 41 (97.2%), 51 (98.5%) and 83 compounds (98.2%) were identified, respectively. While 1,8-cineole (30.5%), camphor (21.3%) and borneol (8.50%) are the major compounds for S. aucheri var. aucheri oil, beta-pinene (10.3%), was the main constituent for S. aramienesis together with 1,8-cineole (46.0%) and camphor (8.7%). In the case of S. pilifera oil, alpha-thujene (36.1%) and alpha-pinene (13.8%) determined as the major compounds. Antioxidant activity was employed by two complementary test systems namely 2,2'-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging and beta-carotene/linoleic acid systems. Antioxidant activity of S. aramiensis was found to be higher than those of the others for the both systems (12.26+/-1.09 and 92.46%+/-1.64 microg mg(-1), respectively). Additionally, antioxidant activities of BHT, curcumin, ascorbic acid and alpha-tocopherol were determined in parallel experiments. In the case of antimicrobial activity, similar activity pattern was obtained (both in disc diffusion and MIC tests). Antimicrobial activity of S. aramiensis was followed by S. aucheri var. aucheri and S. pilifera, respectively. In these experiments, the most sensitive microorganism Acinetobacter lwoffii was followed by Candida albicans.
对三种不同的鼠尾草属植物[奥氏鼠尾草变种奥氏鼠尾草（特有种）、阿拉米鼠尾草和毛鼠尾草（特有种）]的精油进行了筛选，以研究其可能的抗氧化和抗菌特性以及化学成分。根据气相色谱（GC）/电子轰击质谱（EIMS）分析结果；分别鉴定出41种（97.2%）、51种（98.5%）和83种化合物（98.2%）。1,8-桉叶素（30.5%）、樟脑（21.3%）和冰片（8.50%）是奥氏鼠尾草变种奥氏鼠尾草精油的主要成分，β-蒎烯（10.3%）是阿拉米鼠尾草的主要成分，同时还有1,8-桉叶素（46.0%）和樟脑（8.7%）。对于毛鼠尾草精油，α-侧柏烯（36.1%）和α-蒎烯（13.8%）被确定为主要成分。通过两种互补的测试系统来评估抗氧化活性，即2,2'-二苯基-1-苦基肼（DPPH）自由基清除和β-胡萝卜素/亚油酸系统。在这两种系统中，阿拉米鼠尾草的抗氧化活性均高于其他两种植物（分别为12.26±1.09和92.46%±1.64μg mg-1）。此外，在平行实验中测定了丁基羟基甲苯（BHT）、姜黄素、抗坏血酸和α-生育酚的抗氧化活性。在抗菌活性方面，得到了类似的活性模式（在纸片扩散法和最低抑菌浓度试验中均如此）。阿拉米鼠尾草的抗菌活性依次高于奥氏鼠尾草变种奥氏鼠尾草和毛鼠尾草。在这些实验中，最敏感的微生物是洛菲不动杆菌，其次是白色念珠菌。
