Extraction and identification of natural antioxidant from Sideritis euboea (mountain tea).

@article{Tsaknis2005ExtractionAI,
  title={Extraction and identification of natural antioxidant from Sideritis euboea (mountain tea).},
  author={John Tsaknis and Stavros Lalas},
  journal={Journal of agricultural and food chemistry},
  year={2005},
  volume={53 16},
  pages={6375-81}
}
The dried aerial parts of the mountain tea Sideritis euboea were extracted using n-hexane, methanol, diethyl ether, ethyl acetate, and n-butanol. The residues were tested for their antioxidant activity on sunflower oil at 50 degrees C under UV light. The oxidation of the sunflower oil was measured using PV, absorbance E(1%)1 cm, and malondialdehyde by high-performance liquid chromatography (HPLC). The butanol extract showed the highest antioxidant activity and was further fractionated by silica… CONTINUE READING