dergipark.org.tr/en/pub/ijsm/article/1391683PDF

Content of saponin, tannin, and flavonoid in the leaves and fruits of Iranian populations from Rhamnus persica Boiss.(Rhamnaceae)

… In addition, in the case of fruit tannin, the highest amount in Meleh-Sorkh population belonged to Homeil (2.74 mg/g) and the lowest being in of Changizeh population (Sonqor) in 2.28 …