Antioxidant activity of three different Serbian floral honeys
| Autor: | I Dubravka Stajner, M Sonja Djilas, T Vesna Tumbas, S Gordana Cetkovic, M Sladjana Savatovic, M Jasna Canadanovic-Brunet, J Dejan Dimitrijevic |
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| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
Free Radical Scavenging Activity Antioxidant DPPH phenolics medicine.medical_treatment Flavonoid General Engineering antioxidant activity Ascorbic acid Honey samples Serbian floral honeys chemistry.chemical_compound chemistry flavonoids lcsh:Technology (General) Botany medicine lcsh:T1-995 Food science Quercetin EC50 |
| Zdroj: | Acta Periodica Technologica, Vol 2011, Iss 42, Pp 145-155 (2011) |
| ISSN: | 2406-095X 1450-7188 |
| DOI: | 10.2298/apt1142145s |
| Popis: | In this study, three Serbian honey samples (Acacia, Linden and "Homoljski med") were analyzed to determine their total phenolic, flavonoid and antioxidant content, as well as their in vitro antioxidant activity. The antioxidant activity of honeys was examined by different tests, including the reducing power and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay. In addition, correlations between the antioxidant activity and total phenolic, as well as flavonoid content were also sought. The highest content of total phenolics (27.44 mg/100 g), flavonoids (9.78 mg/100 g), reducing power and DPPH free radical scavenging activity were obtained in the case of Linden honey. The EC50 values of the Linden honey, determined based on the reducing power and DPPH radical scavenging activity, were 24.17 mg/ml and 51.34 mg/ml, respectively. Also, the antioxidant content was highest for Linden honey, and it valued 5.45 mg QEAC/100 g (expressed as mg of quercetin equivalent antioxidant content - QEAC per 100 g of honey) and 7.82 mg AEAC/100 g (expressed as mg of ascorbic acid equivalent antioxidant content - AEAC per 100 g of honey). Also, a linear correlation was observed between the antioxidant activity and total phenolics, as well as total flavonoids. |
| Databáze: | OpenAIRE |
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