2.5. Statistical analysis
Experimental data were subjected to single factor analysis of
variance (ANOVA) using Sigma Stat 3.5 to detect statistically significant
differences between treatment means. Levenes test was used to check
for homogeneity of variance within the treatment groups, and Holm
Sidak all pairwise multiple comparison of means test was applied for
testing significance of mean differences between the four treatment
groups where applicable. The significance level was set at Pb0.05, and
values are throughout the text expressed as the mean±standard
deviation.