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The effect of pH and temperature on haemolysin production by Listeria species
S A Khan1, S M Khalid, R Siddiqui
1Department of Microbiology, University of Karachi, Pakistan.
Letters in Applied Microbiology
|July 1, 1993
Abstract:
The ability of three strains of Listeria monocytogenes NCTC 7973, serovar 1/2a, NCTC 5124m serovar 4a, C-274 serovar 4b and one strain of L. seeligeri (SLCC 3954) to grow in TPB (Tryptose phosphate agar) at pH values between 5-9 and produce haemolysin has been investigated at two incubation temperatures. The minimum and maximum pH values at which haemolysin was detected were 5 and 9 respectively, at 20 degrees and 32 degrees C.