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Information Journal Paper

Title

Antioxidant and Antimicrobial Potential, and HPLC Analysis of Stictic and Usnic Acids of Three Usnea Species from Uludag Mountain (Bursa, Turkey)

Pages

  527-535

Abstract

 In this study, antioxidant and antimicrobial potentials of Usnea intermedia, U. filipendula, and U. fulvoreagens and their stictic and Usnic acid contents were investigated. Antioxidant activity and total phenolic contents were evaluated in acetone, ethanol, and methanol extracts of these three species. Antioxidant activity was measured by ABTS [2, 2’-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)] method and total phenolic contents were measured by Folin-Ciocalteu method. High-performance liquid chromatography (HPLC) was used for the determination of lichen acids. It can be concluded from stictic and Usnic acids contents that the order of solvent efficiency is acetone > ethanol > methanol and acetone > methanol > ethanol, respectively. Broth microdilution method was performed to determine the minimum inhibitory concentration (MIC) of the methanol extracts of three Usnea species. The MIC values of all the extracts ranged from 64 μ g/mL to 512 μ g/mL for all the bacterial strains that were tested in this study, and all the Fluoro quinolone-resistant Escherichia coli isolates (except for E101) were sensitive to the methanol extracts of the three Usnea species. This paper is the first study to determine the Stictic acid content in U. intermedia and U. filipendula. Our findings indicate that these three Usnea species could be used as antioxidant and antimicrobial agents.

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    APA: Copy

    Oran, Seyhan, Sahin, Saliha, Sahinturk, Pinar, Ozturk, Sule, & Demir, Cevdet. (2016). Antioxidant and Antimicrobial Potential, and HPLC Analysis of Stictic and Usnic Acids of Three Usnea Species from Uludag Mountain (Bursa, Turkey). IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH (IJPR), 15(2), 527-535. SID. https://sid.ir/paper/288632/en

    Vancouver: Copy

    Oran Seyhan, Sahin Saliha, Sahinturk Pinar, Ozturk Sule, Demir Cevdet. Antioxidant and Antimicrobial Potential, and HPLC Analysis of Stictic and Usnic Acids of Three Usnea Species from Uludag Mountain (Bursa, Turkey). IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH (IJPR)[Internet]. 2016;15(2):527-535. Available from: https://sid.ir/paper/288632/en

    IEEE: Copy

    Seyhan Oran, Saliha Sahin, Pinar Sahinturk, Sule Ozturk, and Cevdet Demir, “Antioxidant and Antimicrobial Potential, and HPLC Analysis of Stictic and Usnic Acids of Three Usnea Species from Uludag Mountain (Bursa, Turkey),” IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH (IJPR), vol. 15, no. 2, pp. 527–535, 2016, [Online]. Available: https://sid.ir/paper/288632/en

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