Sürdürülebilir Kalkınma Amaçları

• 1

• MakaleAçık Erişim2025/r/bayburt/15938
  Comparison of Honey's Physicochemical, Bioactive Components, and Biological Activities from the Eastern Black Sea Region of Türkiye

  Ertürk, Ömer; Çil, Elif; Can, Zehra; Demir, Demet; Bagdatli, Emine

  The aim of this study is to determine and compare the physicochemical and biological characterization of some honey samples in the Eastern Black Sea Region of Türkiye. Physicochemical tests investigated the compliance of honey samples with the Turkish Food Codex. The phenolic components were analyzed by RP- HPLC-PDA. The total phenolic and flavonoid contents (TPC, TFC), antioxidant capacity (FRAP, DPPH), urease, glucose-oxidase, and antimicrobial activity (Disc diffusion, MIC) of the samples were determined, and FTIR and UV-Vis analyses were conducted. The spectra of the honey samples revealed the characteristic bands corresponding to the functional groups of minor components. As a result of the physicochemical analyses, it was determined that some of the samples examined did not comply with the standard values defined in the Turkish Food Codex in terms of the examined parameters. Spectral findings show that honey samples have a rich chemical composition. Anzer honey is preferable to other kinds with its rich phenolic and antioxidant content and relatively high antimicrobial activity.

  • 
  AtıfOpenAlex2·TR Dizin1

  İncele
• MakaleAçık Erişim2025Scopus SJRQ3/r/bayburt/12657
  Chemical and bioactive potential of the nests of Polistes nimpha, Polistes dominula, and Vespa crabro (Hymenoptera: Vespidae)

  Ertürk, Ömer; Can, Zehra; Yaman, Mustafa

  This work was accomplished to establish the chemical components and bioactivity potential of the nest materials of Polistes nimpha (Christ), Polistes dominula (Christ), and Vespa crabro (L.). The biological and chemical compounds of materials and their molecular functionalities were detected using FRAP (ferric reducing antioxidant power) method, DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) free radical method, and Energy Dispersive X-Ray Analysis. Finally, the bioactivity potentials of nest extracts were assayed and phenolic components were determined. C, N, O, Na, Ca, K, Mg, Al, Si are the elemental components of the nest materials. All nest extracts of three species had high biological activity against nine bacteria and one fungus causing common infections. The maximum antibacterial and antifungal activity was seen when gram-negative Pseudomonas aeruginosa, gram-positive Bacillus cereus, and gram-positive Candida albicans were exposed to ethanol extracts of nest samples in 25 μL. High antioxidant activity can be found in the nest extracts. These extracts might help researchers find novel antifungal and antibacterial substances.

  İncele