Salvia tebsana is an endemic plant of 'Khorasan' and a member of the family Lamiaceae. Due to the medicinal properties of other species of Salvia spp., it's probable that this species has high medicinal properties. These properties could be derived from its phenolic compounds. The objective of the present study was to compare the total phenolic content (TPC) of ethanol, methanol and aqueous extract of stems and leaves in S. tebesana in order to getting the best sample with the high internal phenolics. TPC was estimated spectrophotometrically using Folin Ciocalteu method in 765 nm wavelength. The gallic acid was used as the standard substance .[1] The results showed the ethanol extract of leaves was the richest source of phenolics (TPC: 313.7 mg GAE/g) and the lowest phenolic content was in aqueous extract of stem (TPC: 117.2 mg GAE/g). Analyzed data showed that among three kinds of extract, the highest of phenolic content was significantly in ethanol extract. In conclusion, S. tebesana could be regarded as promising plant species for natural plant sources of antioxidants with high potential value for drug preparation [2].

Keywords