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JMM:香菜子油能够杀死多种致病细菌

来源:新华社 2011-08-29 12:01

香菜常被用来调味,有些地方也食用香菜种子榨出的油。最新科学研究显示,香菜子油能够杀死多种致病细菌,可用作食物中的天然抗菌添加剂。

葡萄牙科学家测试了香菜子油对于12种细菌的抗菌效果,其中包括许多常见病菌,如大肠杆菌、肠沙门氏菌、蜡样芽孢杆菌、耐甲氧西林金黄色葡萄球菌等。结果显示,在含有1.6%香菜子油的溶液中,病菌无法生长,而且大部分死亡。

参与这项研究的葡萄牙贝拉地区大学的科学家费尔南达·多明格斯解释说,香菜子油可以破坏细菌的细胞膜,从而影响细菌的新陈代谢等基本生理活动,最终导致细菌死亡。

有关科学家据此认为,香菜子油是一种理想的天然食品添加剂,建议广泛使用。 英国普通微生物学学会主办的《医学微生物学期刊》近日刊登了有关研究报告。(生物谷 Bioon.com)

Coriander (Coriandrum sativum L.) essential oil: its antibacterial activity and mode of action evaluated by flow cytometry

Filomena Silva, Susana Ferreira, João A. Queiroz and Fernanda C. Domingues

The aim of this work was to study the antibacterial effect of coriander (Coriandrum sativum) essential oil against Gram-positive and Gram-negative bacteria. Antibacterial susceptibility was evaluated using classical microbiological techniques concomitantly with the use of flow cytometry for the evaluation of cellular physiology. Our results showed that coriander oil has an effective antimicrobial activity against all bacteria tested. Also, coriander oil exhibited bactericidal activity against almost all bacteria tested, with the exception of Bacillus cereus and Enterococcus faecalis. Propidium iodide incorporation and concomitant loss of all other cellular functions such as efflux activity, respiratory activity and membrane potential seem to suggest that the primary mechanism of action of coriander oil is membrane damage, which leads to cell death. The results obtained herein further encourage the use of coriander oil in antibacterial formulations due to the fact that coriander oil effectively kills pathogenic bacteria related to foodborne diseases and hospital infections.

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