Antioxidant activity of tannin fromTamarix aphylla L. leaves

Tannins of T. aphylla L. leaves have been extracted, then number of preliminary qualitative chemical tests were carried out on the extract. The results revealed that the extract consist of four tannin compounds. In an attempt to assess the possible antioxidant activity for tannin extract of T. aphylla L. leaves, two assays were conducted. It was found that tannin extract possesses strong antioxidant activity (80.1%) as well as strong reducing power (increases as the extract concentration increases).