期刊
FOOD CONTROL
卷 30, 期 2, 页码 463-468出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2012.07.029
关键词
Essential oil; Rosmarinus officinalis; MIC; MBC; Chemotype; Food-borne
资金
- INIA (Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria) [RTA2005-00168-C04-003]
- European Social Fund
The essential oil yield, volatile profile and antimicrobial activity of individual Rosmarinus officinalis L shrubs growing wild in the different bioclimatic areas of the province of Murcia (Spain) were studied. A low thermicity index favoured the production of essential oil; however, no differentiation related to a specific chemotype depended on the geographical origin. In individual plants, the effect of the order of abundance among the components that define the rosemary essential oil chemotype (eucalyptol, camphor, alpha-pinene), on the antimicrobial activity was also determined. All the chemotypes showed strong antibacterial activity against four food-borne pathogens. Determination of the diameter of inhibition in Salmonella typhimurium pointed to a positive contribution effect of eucalyptol and alpha-pinene. A high proportion of alpha-pinene increases the effectiveness of the oil against Staphylococcus aureus, while the presence of eucalyptol, as the most abundant compound, considerably decreases the efficiency of rosemary oil. In contrast, the efficacy of these oils against Listeria monocytogenes and Escherichia coli was not affected by this condition. As regards the minimum inhibitory (MIC) and bactericide (MBC) concentrations, the strong activities exhibited by these essentials oils (<0.5 mu L/mL) did not allow the chemotypes and antibacterial activities to be differentiated. (C) 2012 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据