March 2013

An overview on Hypericum species of Turkey

The genus Hypericum (Hypericaceae) is represented by nearly 100 taxa grouped under 19 sections in Turkey. Among them, 45 species are endemic. All members of the genus may be referred to as St. John's wort in the world. The genus is known as “sari kantaron, kantaron, binbirdelik otu, mayasil otu” and most of them, especially H. perforatum, have been used for the treatment of...

Author(s): Esra EroÄŸlu Özkan and Afife Mat

March 2013

Phenolic content, radical scavenging activity and cytotoxicity of Tamarix nilotica (Ehrenb.) bunge growing in Egypt

The radical scavenging activity using 1,1-diphenyl, 2-picrylhydrazyl (DPPH) and cytotoxicity using sulphorhodamine B (SRB) assay of the aqueous methanolic extract ofTamarix nilotica (Ehrenb.) Bunge (Tamaricaceae) flowers and its subextracts (CHCl3, EtOAC and Pet.ether) were evaluated. Total phenolic and flavonoid contents were estimated using colorimetric assays. Ethyl acetate (EtOAc) showed the highest free...

Author(s): Riham Omar Bakr, Mohamed Abd El-Aziz El Raey and Rehab Seif Ashour