Screening of Turkish endemic Teucrium montbretii subsp pamphylicum extracts for antioxidant and antibacterial activities

Ozkan G., Kuleasan H., ÇELİK S., Gokturk R., Unal O.

FOOD CONTROL, vol.18, no.5, pp.509-512, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 5
  • Publication Date: 2007
  • Doi Number: 10.1016/j.foodcont.2005.12.009
  • Journal Name: FOOD CONTROL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.509-512
  • Keywords: Teucrium montbretii, phenolics, flavanols, flavonols, antioxidant activity, antibacterial effect, ESSENTIAL OILS, CHEMICAL-COMPOSITION, PHENOLIC-COMPOUNDS, CONDENSED TANNINS, INHIBITION, GROWTH, PLANTS, WINE
  • Yıldız Technical University Affiliated: No


The antioxidant and antimicrobial activities of Teucrium montbretii Bentham subsp. pamphylicum P.H. Davis (Lamiaceae) methanolic extracts were investigated. Total contents of phenolic compounds, flavonols and flavanols were determined by Folin-Ciocalteu colorimetric, Neu's reagent solution and vanillin colorimetric methods, respectively. Total phenolics were 99.4 mg gallic acid equivalents (GAE)/g. Total flavanols. and flavonols were 43.8 mg catechin equivalents (CE)/g and 0.5 mg rutin equivalents (RE)/g, respectively. At 100 ppm, the free radical scavenging activity was 58.6%. Antioxidant activity measured by the phosphomolybdenum method was 191.5 mg/g. Antibacterial activity was assessed (1%, 2.5%, 5%, 7.5% and 10% w/v) by the agar diffusion method against 10 species. Concentrations of 1% and 2.5% were not effective against any of the bacteria. The most resistant bacterium was Salmonella typhi while Listeria monocytogenes showed the highest sensitivity. (c) 2006 Elsevier Ltd. All rights reserved.