Rate constants for KS, aspartame destruction, and
nonenzymatic browning were estimated by linear regression
analysis of data. In all cases, the statistical significance
of the regressions was evaluated through an analysis of
variance. Significant differences among kinetic rate constants
were evaluated through a covariance analysis for the
equality of the slopes. Besides, two-way ANOVA (aw level
and aspartame level or type of humectant and aspartame
level) was performed to analyze possible interactions.