Determination of Antimicrobial and Antioxidant Activities and Chemical Components of Volatile Oils of Atropa belladonna L. Growing in Turkey

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Har Krishan Bhalla and Sons

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In this study; the essential oils were obtained from the flowers and leaves of Atropa belladonna L. plants through the hydrodistillation method in a Clevenger type device. The chemical composition of volatile oils was determined by analyzing with the GC-MS/MS instrument. The antioxidant activity of the obtained volatile oils was determined according to total antioxidant content (TAC), free radical scavenging (ABTS) capacity, free radical scavenging (DPPH) amounts, total flavonoid content (TFC), total phenolic content (TPC), and ferric reducing antioxidant power (FRAP) capacity methods. Antimicrobial activities of essential oils were determined through the agar-disc diffusion method. As for the results; volatile oil yields of the A. belladonna were determined as 0.37 % in leaves and 1.57 % in flowers. The highest percentage of chemical compounds in essential oils of the A. belladonna plant were determined as (43.75 %) aldehydes in leaves and as (39.96 %) fatty acids in flowers. In addition, the main constituents found in volatile oils were eicosane (35.92 %) in the leaves and hexadecenoic acid (18.84 %) in the flowers of the A. belladonna. The highest amounts of antioxidant for the test specimens were found as 1.37-1.48 mg QE/100 mL in TFC, as 13.25-21.91 mg AA/100 mL in ABTS, as 51.49-62.87 mg GA/100 mL in TPC, and as 4.71-7.97 mg FeSO4/100 mL in FRAP capacity. As the results of the antimicrobial activities, it was determined that only the leaves of A. belladonna show antimicrobial activity against the mold-yeast and gram-positive and gram-negative bacteria microorganisms among the 17 bacteria and 6 yeast-mold types used in the study.


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antimicrobial activity, Antioxidant activity, Atropa belladonna L, GC/MS, volatile oil


Journal of Essential Oil-Bearing Plants

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