Moreover, comparing results of the inhibition obtained from
the clear zones (Fig. 6), demonstrate that inhibition zones (ZI)
are more important comparing each pigment to his analogue that may be because wells in the agar plate are more soaked with pigment than the tissue samples.
Tissue sample cannot retain more than 20 L of the studied solution and the active compounds in
the tissue are more difficult to scatter in the agar than those in the well