2.7. Statistical analysis
Each bioactive compound was extracted and analysed two times
from two independent experiments. Results were reported as
the mean ± standard deviation. Analysis of variance (ANOVA)
followed by the least significant difference test (LSD) were
applied to the results obtained to verify whether there were
significant differences (p < 0.05) in the concentration and
bioaccessibility of bioactive compounds from beverages in relation
to the factors studied in this research (food matrix and
processing). Multifactorial analysis of variance (ANOVA) was
performed to study separately the main effects (food matrix
and treatment) and the interaction effect (food matrix × treatment).
As a significant interaction effect was observed in most
of the variables,ANOVA, comparing the means within the same
food matrix for different treatments and within the same treatment
for different food matrix, was performed. All analyses
were carried out with the statistical program Statgraphics Plus
5.1 (Statistical Graphics Corporation, Inc., Rockville, MD, USA).