More
specifically, the viabilities ranged from 1.1-fold higher (18.3%
viability using glucose) up to 4.1-fold higher (66.2% viability using
trehalose) compared to no use of lyoprotectants (16.3% viability).
Trehalose resulted in significantly (P < 0.05) higher viabilities
compared to all other lyoprotectants evaluated, a fact that has been
also reported during freeze-drying of other probiotic lactobacilli
(Miao et al., 2008). However, its use in industrial application is
uncertain due to its extremely high cost. Therefore, alternative
agents should be evaluated in the near future. A promising lyoprotectant
with high industrial potential is whey, which is of
negligible cost and resulted in satisfactory viable count levels (11.1
log cfu/g).