Phenolic compounds and antioxidant activity of Calligonum polygonoides stem and buds.

In the present study we demonstrate the identification of phenolic compounds and the phenolic contents of the methanol extracts from stem and buds of Calligonum polygonoides with antioxidant activity. Eleven and nine phenolic compounds were identified and quantified from stem and buds, respectively by high-performance liquid chromatography (HPLC). p-Coumaric acid was predominant in stem and gallic acid in buds. In general, the samples with the highest phenolic contents had the highest antioxidant activities. Stem and buds sparked attention due to their high phenolic contents and antioxidant activities. The Results from present study reveal that the C. polygonoides could be considered as a promising source of antioxidant phytochemicals. [ABSTRACT FROM AUTHOR]