KINALIOĞLU, Kadir Giresun University - Faculty of Science and Arts - Department of Biology, Turkey , AYDIN, Sinem Giresun University - Faculty of Science and Arts - Department of Biology, Turkey , İLHAN, Özge Giresun University - Faculty of Science and Arts - Department of Biology, Turkey , YILMAZ, Zeynep Giresun University - Faculty of Science and Arts - Department of Biology, Turkey

Phenol and Flavonoid Amounts, Antioxidant and Antibacterial Potencies of Xanthoparmelia stenophylla (Ach.) Ahti D. Hawksw.

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Xanthoparmelia stenophylla is traditionally utilized for the cure of snake bites and venearal diseaseslike syphilis. X. stenophylla have different colouring compounds and can be used as dye sources.Different extracts obtained from X. stenophylla were tested in terms of antioxidant and antibacterialtraits. Phenol and flavonoid concentrations of the extracts were also determined. Chloroform andacetone were used as solvents in the soxhlet extraction. While bacteria‐inhibiting efficacy was detected with the disc diffusion technique. The antioxidant property was determined through DPPH radical scavenging activity, reducing power and metal chelating activity. Chloroform extract was most effective against Bacillus megaterium with an inhibition zone of 25 mm. Both the acetone and chloroform extracts were not effective against Klebsiella pneumonia. The highest phenolic content was found in the chloroform extract (42.58±0.47 μg/mL) and the highest flavonoid content was obtained in the acetone extract (113.56±1.02 μg/mL). DPPH activity of lichen extracts was between 9.33‐33.84%. The reducing activity extracts and standards were found the given order: BHT Rutin Chloroform extract of X. stenophylla Acetone extract of X. stenophylla. In the study, it was seen that X. stenophylla can probably be an alternative to the other natural antioxidant and antibacterial agents.

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Xanthoparmelia stenophylla , Lichen , Antimicrobial activity , Antioxidant

Afyon Kocatepe University Journal Of Science an‎d Engineering

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