3.1. Isolation and biochemical identification
In total 200 isolates were obtained from 14 artisanal yoghurt
samples. After the elimination of poorly growing cells during subcultivations,
66 of the isolates (obtained from 11of the 14 yoghurt
samples) were selected and used for the biochemical characterization.
The isolates were determined to be Gram positive, homofermentative,
catalase negative, and with spherical or ovoid
morphology appearing as pairs or chains (Fig. 1). Only two of the
isolates, c97-2 and cTY44, were found to grow in 2 g/100 mL NaCl,
and none of them were able to grow at 4 g/100 mL NaCl.