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Comparative analysis of antioxidant activity of honey of different floral sources using recently developed polarographic and various spectrophotometric assays

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2013
Authors
Gorjanović, Stanislava Ž.
Alvarez-Suarez, Jose Miguel
Novaković, Miroslav
Pastor, Ferenc T.
Pezo, Lato
Battino, Maurizio
Suznjevic, Desanka Z.
Article (Published version)
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Abstract
Hydrogen peroxide scavenging (HPS) activity of honey of different floral sources and its constituents such as predominant honey flavonoids, phenolic acids, amino and organic acids, and carbohydrates have been assessed by direct current (DC) polarographic assay. The assay was based on decrease of anodic current of hydrogen peroxide complex, formed in alkaline solution, at the potential of mercury dissolution. High correlations between honey HPS activity, its total phenolic content (FC-GAE), antioxidant activity measured by four standard methods (DPPH, TEAC, FRAP and ORAC), and also the relative antioxidant capacity index, were obtained. Statistical evaluation by ANOVA and F-test further confirmed the assay validity. The results for individual compounds showed that HPS activity of honey reflects an integrated action of a wide range of constituents, both phenolics and non-phenolics. The polarographic assay applied is a fast, reliable and low cost alternative to spectrophotometric antioxid...ant assays commonly applied in analysis of honey and can serve as an indicator of honey quality.

Keywords:
Analytical method / Food analysis / Honey / Honey constituents / Food composition / Phenolics / Reducing sugars / Antioxidant activity / Hydrogen peroxide scavenge / DC polarography / Anodic current / Honey adul
Source:
Journal of Food Composition and Analysis, 2013, 30, 1, 13-18
Publisher:
  • Academic Press Inc Elsevier Science, San Diego
Projects:
  • Modulation of antioxidative metabolism in plants for improvement of plant abiotic stress tolerance and identification of new biomarkers for application in remediation and monitoring of degraded biotopes (RS-43010)
  • Content of bioactive components in small and stone fruits as affected by cultivar specificities and growing conditions, and obtaining biologically valuable products by improved and newly developed technologies (RS-31093)

DOI: 10.1016/j.jfca.2012.12.004

ISSN: 0889-1575

WoS: 000317799500003

Scopus: 2-s2.0-84873531795
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/1357
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