Survival analysis was shown to be an adequate methodology to
determine the shelf-life of probiotic yogurt. The consumers
showed sensitive to changes towards sensory characteristics intro-
duced into the products which can relate to the metabolism of the
probiotic bacteria present in the yogurt formulation as expressed
to pH values and organic acid concentrations. Considering 25%
and 50% probability of consumer rejection, the shelf-life of the pro-
biotic yogurt was estimated at 38 and 53 days, respectively. The
findings of this research highlighted the feasibility of using survival
analysis to determine the shelf-life of foods, in particular, func-
tional foods, as probiotic yogurts.