BEHAVIOR OF YERSINIA-ENTEROCOLITICA AND AEROMONAS-HYDROPHILA IN SKIM MILK DURING FERMENTATION BY VARIOUS LACTOBACILLI

Authors
Citation
Zy. Ozbas et Sa. Aytac, BEHAVIOR OF YERSINIA-ENTEROCOLITICA AND AEROMONAS-HYDROPHILA IN SKIM MILK DURING FERMENTATION BY VARIOUS LACTOBACILLI, Zeitschrift fur Lebensmittel-Untersuchung und -Forschung, 202(4), 1996, pp. 324-328
Citations number
31
Categorie Soggetti
Food Science & Tenology
ISSN journal
00443026
Volume
202
Issue
4
Year of publication
1996
Pages
324 - 328
Database
ISI
SICI code
0044-3026(1996)202:4<324:BOYAAI>2.0.ZU;2-A
Abstract
In this study, behaviour of Yersinia enterocolitica and Aeromonas hydr ophila in skim milk during fermentation by various Lactobacillus sp. w ere determined. pH values of the skim milk samples were also examined during fermentation. The amount of produced lactic acid and diacetyl/a cetoin productions of the Lactobacillus sp. were estimated. Antimicrob ial effects of the lactobacilli on Y. enterocolitica and A. hydrophila were also determined by an agar diffusion method. While Y. enterocoli tica was not inhibited and grew during fermentation, A. hydrophila was inhibited, in part, and the growth was retarded. Results were support ed by the agar diffusion method for Y. enterocolitica, whereas inhibit ion activity was not found for A. hydrophila. The highest lactic acid productions were estimated in L. bulgaricus (7.50 mg/ml) and L. acidop hilus (5.63 mg/ml) and four out of six Lactobacillus sp. were found to be diacetyl/acetoin producers.