The influence of commonly used selective agents on the growth of Listeria monocytogenes

被引:4
作者
Jacobsen, CN [1 ]
机构
[1] Royal Vet & Agr Univ, Dept Dairy & Food Sci, DK-1958 Frederiksberg C, Denmark
关键词
D O I
暂无
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The effects, upon addition of various selective agents to a rich growth medium (BHIEM) on the growth of Listeria monocytogenes and non-listeria were studied in microtitre wells. A combination of nalidixic acid (0.1 g/l), acriflavine (0.02 g/l) and fosfomycin (0.1 g/l) added to the medium (BHIEMNAF) was found to be the least inhibitory to Listeria while at the same time, effectively inhibitory to non-listeria organisms. Recovery of heat injured Listeria monocytogenes in BHIEM, BHIEMNAF and the two traditional Listeria-media, UVM I and II, was compared. Recovery in BHIEM was obtained within 24 h of incubation at 30 degrees C, whereas recovery in BHIEMNAF took up to 48 h. Growth and recovery in UVM I and II never reached the same level as in BHIEM or BHIEMNAF. (C) 1999 Elsevier Science B.V. All rights reserved.
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页码:221 / 226
页数:6
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