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- MakaleAçık Erişim2023Chemical Content of Volatile Oil of Primula veris subsp. columnae, Obtaining the Methanol Extracts and their Biological Activities
Karapınar, Çağrı; Öz, Mehmet
The proportions and constituents of the essential oils of flowers and leaves of Primula veris subsp. columnae were determined, and the antioxidant and the antimicrobial (antibacterial and antifungal) properties of their methanol extracts were investigated. Percentage ratios and main components of the Primula veris subsp. columnae plant, which grows naturally, were detected by extracting flower and leaf volatile oils. The components of the volatile oil were identified with Gas Chromatography Mass Detector-Flame Ionization Detector (GC-MS/FID). A total of 62 compounds were identified in flower volatile oil, and methyl 4methoxysalicylate (37.1%) was determined as the main compound. While defining the structure of 50 compounds in leaf essential oil, linoleic acid (40.1%) was established as the main compound. As the result of the extraction of flowers and leaves with methanol, the extractive substance was obtained as 34.5% in flowers and as 28.8% in leaves. Methanol extraction and the antioxidant properties of the Primula veris subsp. columnae plant were quite high. In the antifungal and antibacterial activity test conducted on the volatile oils and methanol extracts of flowers and leaves of the Primula veris subsp. columnae species, only flower volatile oil showed weak inhibition properties.
- MakaleYalnız künye2022Chemical composition, antioxidant and antimicrobial activity of Colchicum speciosum Steven growing in Türkiye
Baltacı, Cemalettin; Öz, Mehmet; Fidan, Muhammed Said; Üçüncü, Osman; Karataş, Şeyda Merve
In the current study, the chemical constituents, antioxidant and antimicrobial activity of the volatile oil obtained from flowers and stems of C. speciosum growing in Türkiye were investigated. Both volatile oils were extracted through the hydrodistillation method in a Clevenger apparatus followed by the GC-MS analysis. The volatile oil yield attained from flowers and stems parts were determined as 0.62% and 0.65%, respectively. The most abundant compounds were determined in the flowers. Tricosane, octadecanal and hexadecanoic acid were identified to be the major components. Tricosane (38.28%) was defined to be the major component in flowers. 2-hydroxy benzaldehyde, tricosane and hexadecanoic acid were found to be the main compounds in the volatile oil of stems. 2-hydroxy benzaldehyde (46.49%) was found to be the main constituents in stems. According to the results antioxidant activity was attained as total antioxidant substance amount (86.77 mg AA/100 mL), total phenolic substance amount (65.64 mg GA/100 mL), total flavonoid substance amount (3.92 mg QE/100 mL), ferric (III) ion reducing antioxidant power capacity (6.88 mg FeSO4/100 mL) and free radical scavenging capacity (ABTS) (50.67 mg AA/100 mL) were obtained the highest antioxidant properties were obtained in flowers of C. speciosum. C. speciosum volatile oils had antimicrobial activity against Bacillus cereus in the flowers and had no activity against bacteria and yeast-mould in the stems.
- MakaleAçık Erişim2021Determination of Antimicrobial and Antioxidant Activities and Chemical Components of Volatile Oils of Atropa belladonna L. Growing in Turkey
Öz, Mehmet; Fidan, Muhammed Said; Baltaci, Cemalettin; Ücüncü, Osman; Karatas, Seyda Merve
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.