B. Hemati et al., CHARACTERIZATION OF STRAINS OF THE GENUS ENTEROCOCCUS ISOLATED FROM EGYPTIAN DOMIATI CHEESE, Archiv für Lebensmittelhygiene, 48(1), 1997, pp. 17-20
10 strains isolated from Egyptian Domiati cheese of the genus Enteroco
ccus were characterized: 8 strains were identified as Enterococcus fae
cium and 2 strains as Enterococcus faecalis using API 20 Strep-Tests-s
ystem, Vitek system and demonstration of Lancefield group D antigen. T
ests also used for identification included bile-esculin reaction, hydr
olysis of esculin on kanamycin-esculin-azid agar, growth at 10 degrees
C and 45 degrees C in APT B broth and on Enterococcocel-agar at 37 de
grees, at pH 9,6 and in 6,5 % NaCl broth. Tyramin production was consi
derably lower in comparison to European strains. Growth in 8-9% NaCl b
roth was observed in 3 strains isolated from Domiati cheese. Under the
tested antibiotics all the strains were resistant against Oxacillin a
nd Cefazolin and sensitive against Ampicillin, Amoxicillin and Cefaclo
r.