Floral origin, Antioxidant and Antimicrobial Activity of Some Floral Honey from Turkey

İngilizce (OpenAlex)

The study was planned to assess botanic origin, antioxidant power, antimicrobial activity and physicochemical properties of four honey samples were collected in Turkey. The melissopalynologic results revealed that sample 1 and 2 are polyfloral, and others are unifloral. Total content of phenolic (116.47-1711.13 mg GAE/100 g) and flavonoids (1.46 - 27.25 mg CAE/100 g) were analysed, and the antioxidant activities measured by ferrous ion chelating activity (FICA) (71.32-93.35%), hydrogen peroxide scavenging activity (HPSA) (SC50: 217.8-1238.39 µg/mL), 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging (SC50: 20.15-27.14 µg/mL), 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity (SC50: 22.93-308.17 µg/mL) and ferric reducing antioxidant power (FRAP) (71.03-99.54 %) differed notably. For comparison of the samples, butylated hydroxy anisole (BHA), rutin (RUT) and trolox (TRO) were used as standard antioxidant compounds. According to these results, samples showed more efficient antioxidant activity than TRO except for ABTS assay. Also, Sample 1 and 4 have higher FICA activity and Sample 2 and 3 demonstrated more FRAP activity than standards. The minimal inhibitory concentrations (MICs) and agar diffusion assays of honey samples against Staphylococcus aureus and Escherichia coli showed that these samples was the most effective in inhibition of their growth.