2.11. Statistical analysis
The data reported in the tables are the average of triplicates.
Means and standard deviations were calculated using Microsoft
Excel 2007 (XP Edition, Microsoft Corporation, USA). For the statistical
analysis the program SPSS (Version 21) was used and analysis
of variance (ANOVA) and comparison of means with the Duncan’s
test were conducted at a significance level of P < 0.05.