ArticleViewAbstractPharmacognosy Journal,2015,7,5,9-9.Published:29th Apr, 2015Type:Original ArticleComparison in Vitro of Antioxidant Activity between Fifteen Campanula Species (Bellflower) from Palestinian FloraNidal Amin Jaradat, and 1Murad Abualhasan Nidal Amin Jaradat*1 Murad Abualhasan11Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine.Abstract:Background: The natural antioxidant products in the plant kingdom play an important role in the healthy life style and reduce the risk for various chronic diseases. Objective: The objective of this study was to investigate different antioxidant pharmacological property of methanol extract for fifteen species of Campanula plant from Palestinian flora. Methods: The antioxidant activity of fifteen Campanula species growing wildly in Palestine were studied using 2,2-diphenylpicrylhydrazyl (DPPH) radical scavenging activity and their antioxidant activity was compared to Trolox antioxidant activity. Results: The results clearly demonstrate a very high antioxidant activity of the Campanula sulphurea and Campanula sidoniensis and they showed almost the same antioxidant activity of Trolox. The other twelve species extracts also exhibited excellent antioxidant activity in DPPH radical scavenging activity in comparison with trolox standard. Conclusion: Methanol extract of Campanula can be valuable for treatment of different diseases and could be used as a possible new source of natural antioxidants in the food, nutraceuticals, pharmaceuticals and cosmetic industry.Key words: Antioxidant, Bellflower, Campanula, Bellflower, Campanulaceae, DPPH radical scavenging activityKeywords:Antioxidant, Bellflower, Campanula, Campanulaceae, DPPH radical scavenging activity.