Όνομα Περιοδικού:e-Journal of Science & Technology e-Περιοδικό Επιστήμης & Τεχνολογίας
Continuous production of wine in a tower fermentor by entrapped yeast cells of
Saccharomyces cerevisiae in double layer alginate – chitosan beads (DAC beads) has
been studied. The wine was produced from the grape variety of Muscat of Alexandria.
Continuous fermentation was carried out for 53 days and the composition of the wines
produced in different flow rates of the medium was determined. Also suspended yeast
cells in a free state from the same strain were used under similar conditions for the
production of wine by batch fermentation.
The composition of the wines produced by the entrapped cells in the continuous
process in the different flow rates of the medium was similar. The maximum
productivity of ethanol and the maximum daily production of wine achieved during
the continuous process were 3 - 4 times higher than those achieved during the batch
process. The composition of the wines produced from the two different processes was
similar. In the continuous fermentation the concentrations of higher alcohols were at
lower level while the concentrations of volatile esters were at higher level compared
to batch fermentations.