a shows the growth of bacterial strain ZSB10. This growth
appeared significant during the first 24 h (exponential growth
phase), being able to grow in the 9 different culture media assayed,
although the behavior was different depending on the medium
composition. The strain was favored when the mineral salt medium
(MSM) was added to a carbon source such as glucose or xylose, but
was also able to grow well without the salts and yeast extract con-
tained in MSM medium, meaning that could grow using only the
cellulosic or hemicellulosic sugars provided by hydrolyzates from
vine-trimming shoots. The results demonstrate the halotolerance
of this strain, which means that it could grow either in the absence
or in presence of salts. Furthermore, biosurfactants production
was evaluated using the extracellular biosurfactant excreted into
the culture medium and the cell-bound biosurfactants by washing
the cells with distilled water.