Number of yeast cells was measured in the starting must and
after fermentations in broth and bio capsules. Must was inoculated
with a 5 106 yeast viable cells mL1 free or immobilized. The
highest concentration of viable yeast cells at the end of fermentation
in the broth was obtained when raisin must was inoculated
with free yeast cells (35 ± 2 106 cells/mL). However, the number
of viable cells suspended in the musts fermented with immobilized
yeast packed and confined within the metal cylinders (6 ± 1 106
cells/mL) was much smaller than those in similar previous experiments,
where the biocapsules were used free as a fluidized bed
(García-Martínez et al., 2012). The number of yeast cells in the
biocapsule to the end of fermentation B1 was 8 ± 2 109 cells/g wet
biocapsule (41 ± 10 106 cells/mL), and B2eB5 was 18 ± 4 109
cells/g wet biocapsule (93 ± 18 106 cells/mL).