摘要
【目的】探索百里香精油(thyme essential oil)的化学组成及其作用机理。【方法】采用水蒸气蒸馏法提取百里香精油,利用气-质联用技术(GC-MS)测定化学成分,研究抗氧化性、抑菌作用和毒理特性。【结果】百里香精油含有85种化学成分,且以酚类物质为主。百里香精油具有很强的抗氧化性,抗氧化能力高于维生素E,对大肠杆菌、金黄色葡萄球菌、黑曲霉菌、啤酒酵母菌的抗菌性均表现为敏感型,但碱性条件和热处理降低其抑菌作用。【结论】经动物试验百里香精油属无毒型,可安全用作食品添加剂和化工香料。
【Objective】 The chemical compositions and function mechanisms of thyme essential oil were studied in this paper.【Method】The thyme essential oil（TEO） obtained by hydrodistillation was analyzed by GC/MS,and its antioxidation activity,antimicrobial effect and toxicological character were studied.【Result】TEO contains 85 chemical components,in which phenolic compounds are the main ones.TEO has strong antioxidation activities being better than vitamin E.The antimicrobial effects of TEO on Escherichia coli,Aspergillus niger,Staphyloccocus aureus and Saccharomyces cerevisiae are sensitive,but are reduced greatly under the conditions of alkalescence and heat treatment.【Conclusion】 TEO was proved to be avirulent by animal testing and could be used as a food additive and a chemical spice.
出处
《中国农业科学》
CAS
CSCD
北大核心
2011年第9期1888-1897,共10页
Scientia Agricultura Sinica
基金
陕西省自然科学基金项目(2004C109)
陕西省科技攻关项目(2003K02-G6)
科技部农业科技成果转化项目(2008GB23600465)
关键词
百里香精油
化学成分
抗氧化性
抑菌作用
毒理特性
thyme essential oil
chemical component
antioxidation activity
antimicrobial effect
toxicological character
