Studying the effect of some environmental factors on the phenolic content of Rhus cotinus L. (Jableh area)

This study aimed at investigating the effect of some environmental factors on the phenolic contents of the Rhus cotinus L. plant. Plant samples (leaves, flowers and bark) were collected from three aspects (south, west and north) at four altitudes (0-300, 300-600, 600- 900, ˃900m) in the countryside of Jableh in 2016. The fresh samples were extracted using 95% ethanol as an extraction solution, then the total contents of the phenolic compounds were determined spectrophotometrically using the Folin-Ciocalteu reagent, expressing the result by (mg gallic acid/1g fw) using a Spectrophotometer.