2.10. Statistical data analysis
A categorical multifactorial experimental design with two factors,improver incorporation and level of fat replacement, was used for the samples analysed 24 h after baking. For the study of the effects of storage time on cakes, a design with three factors was
used: improver incorporation, level of fat replacement and time of storage.
Analysis of variance (ANOVA) was performed on the data using Statgraphics Centurion XVI version 16.1.11 software package(Statistical graph Co., Rockville, MD, USA). The Least Significant
Difference (LSD) Fisher’s test was used to evaluate the mean values
differences (P < 0.05).