食源性病原体细菌对巴豆（Croton blanchetianus Baill）精油的敏感性。
The sensitivity of bacterial foodborne pathogens to Croton blanchetianus Baill essential oil.
作者信息
do Amarante Melo Geiseanny Fernandes, da Costa Ana Caroliny Vieira, Garino Junior Felício, Medeiros Rosália Severo, Madruga Marta Suely, Queiroga Neto Vicente
机构信息
Departamento de Engenharia de Alimentos, Centro de Tecnologia, Universidade Federal da Paraíba, João Pessoa, PB, Brazil.
Laboratório de Microbiologia, Hospital Veterinário, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Campus Patos, PB, Brasil.
出版信息
Braz J Microbiol. 2014 Mar 10;44(4):1189-94. doi: 10.1590/S1517-83822014005000009. eCollection 2013 Dec.
The aim of this study was to assess the activity of essential oil extracted from the leaves of C. blanchetianus Baill, popularly known as "marmeleiro", in inhibiting the growth and survival of pathogenic microorganisms in food by determining their survival in vitro and by observing the behaviour of Listeria monocytogenes inoculated into a food model (meat cubes) that was stored at refrigeration temperature (7 ± 1 °C) for 4 days. The results indicated a bactericidal effect against Aeromonas hydrophila and Listeria monocytogenes and bacteriostatic action against Salmonella Enteritidis. A bacteriostatic effect on meat contaminated with L. monocytogenes was found for all concentrations of essential oils tested. These results showed that essential oil from the leaves of C. blanchetianus Baill represents an alternative source of potentially natural antimicrobial agents that may be used as a food preservative.
本研究的目的是通过测定其在体外的存活情况，并观察接种到在冷藏温度（7±1°C）下储存4天的食品模型（肉块）中的单核细胞增生李斯特菌的行为，来评估从俗称“marmeleiro”的布兰奇蒂桉树叶中提取的精油对食品中致病微生物生长和存活的抑制活性。结果表明，该精油对嗜水气单胞菌和单核细胞增生李斯特菌具有杀菌作用，对肠炎沙门氏菌具有抑菌作用。在所测试的所有精油浓度下，均发现其对被单核细胞增生李斯特菌污染的肉类有抑菌作用。这些结果表明，布兰奇蒂桉树叶中的精油是一种潜在的天然抗菌剂的替代来源，可作为食品防腐剂使用。
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