The phenolic content of the RE was evaluated using the
Folin–Ciocalteu reagent. It was about 112 mgGAE/g extract. This
amount is less than that found by Erkan et al. (2008) on the
methanolic rosemary extract and which is about 162mgGAE/g
extract. This difference may be the cause of the higher polarity of
methanol used in their study and which allows better extraction of
the polar phenolic compounds