Screening the Antioxidant and Antimicrobial Properties of the Lichenized Ascomycete Tornabea scutellifera

Authors : Sevil ALBAYRAK, Mehmet Gökhan HALICI, Songül KOYUN

Pages : 1-3

View : 25 | Download : 13

Publication Date : 2016-09-01

Article Type : Research Paper

Abstract :The study was aimed at evaluating the antioxidant and antimicrobial activity of the methanol extract of  Tornabea scutellifera  collected from Eastern Mediterranean Region of Turkey. Antioxidant activity was employed by three complementary test systems namely phosphomolybdenum, β-carotene/linoleic acid and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging systems. In β -carotene-linoleic acid system,  T. scutellifera  methanol extract exhibited 72.0% inhibition against linoleic acid oxidation. In DPPH assay, IC 50  value of the methanol extract was determined as 147.06 μg/mL. Total phenolic content in the methanol extract was determined spectrometrically applying the Folin- Ciocalteu assay. The extract was tested against thirteen bacteria and two yeasts by agar diffusion assay and found active against  Aeromonas hydrophila , Klebsiella pneumonia ,  Pseudomonas aeruginosa ,  Bacillus brevis ,  Bacillus cereus  and  Staphylococcus aureus . No antimicrobial activity against the yeasts ( Candida albicans  and  Saccharomyces cerevisiae ) was detected. The results obtained in the present study indicate that  T. scutellifera  may be a potential source of natural antioxidant and antimicrobial agents
Keywords : Tornabea scutellifera, lichens, antimicrobial activity, antioxidant activity, penolic content