...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Natural product communications >Comparison of volatile constituents, and antioxidant and antibacterial activities of the essential oils of Thymus caucasicus, T. kotschyanus and T. vulgaris.
【24h】

Comparison of volatile constituents, and antioxidant and antibacterial activities of the essential oils of Thymus caucasicus, T. kotschyanus and T. vulgaris.

机译：比较百里香，百里香和普通菜的挥发油的挥发性成分，以及抗氧化和抗菌活性。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A comparison of the chemical composition, and antioxidant and antibacterial activities of the essential oils obtained from the aerial parts of Thymus caucasicus, T. kotschyanus, and T vulgaris was carried out. The oils, obtained by hydrodistillation, were analyzed by GC and GC/MS. Twenty, 29 and 22 compounds representing 94.8%, 96.6% and 98.2% of the essential oils of T. caucasicus, T. kotschyanus and T. vulgaris, respectively, have been identified. The oil of T. caucasicus was characterized by 1,8-cineol (21.5%), thymol (12.6%), beta-fenchyl alcohol (8.7%), nerolidol (7.8%), terpinolene (7.2%), alpha-pinene (7.0%) and myrcene (6.8%). In the oil of T. kotschyanus, carvacrol (24.4%), beta-caryophyllene (14.5%), gamma-terpinene (12.4%), alpha-phellandrene (10.8%), p-cymene (9.8%) and thymol (6.8%) were the predominant compounds, whereas the main components of T. vulgaris oil were thymol (43.8%), p-cymene (15.2%), germacrene-D (11.7%), terpinolene (3.4%), carvacrol (3.2%), beta-caryophyllene (2.8%) and alpha-thujene (2.2%). In all three plants oil, hydrocarbon monoterpenes predominated over sesquiterpenes. Antioxidant activities were assessed by determining IC50 values in the DPPH radical scavenging assay. Antibacterial activity was determined by measuring minimum inhibitory concentration (MIC) using the broth dilution method. The essential oils of T. caucasicus, T. kotschyanus and T. vulgaris showed free radical scavenging and antibacterial activity.
机译：对从百里香，百日草和寻常型T的地上部分获得的香精油的化学成分，抗氧化和抗菌活性进行了比较。通过GC和GC / MS分析通过加氢蒸馏获得的油。现已鉴定出二十种，29种和22种化合物，分别占高加索螺旋藻，kotschyanus和寻常型T.精油的94.8％，96.6％和98.2％。 T.caucasicus的油的特征是1,8-cineol（21.5％），百里酚（12.6％），β-苯甲醇（8.7％），nerolidol（7.8％），terpinolene（7.2％），α-pine烯（ 7.0％）和月桂烯（6.8％）。在T.kotschyanus的油中，香芹酚（24.4％），β-石竹烯（14.5％），γ-萜品烯（12.4％），α-芹烯（10.8％），对生精（9.8％）和百里酚（6.8％） ）为主要成分，而普通百里香油的主要成分为百里香酚（43.8％），对伞花烃（15.2％），germ三丁烯D（11.7％），萜品油烯（3.4％），香芹酚（3.2％）， β-石竹烯（2.8％）和α-thujene（2.2％）。在所有三种植物油中，碳氢化合物单萜类均高于倍半萜类。通过在DPPH自由基清除试验中确定IC50值来评估抗氧化活性。通过使用肉汤稀释法测量最小抑制浓度（MIC）来确定抗菌活性。 T. caucasicus，T。kotschyanus和T. vulgaris的精油显示出自由基清除作用和抗菌活性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号