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Antioxidant characterization of native monofloral Cuban honeys
Jose M Alvarez-Suarez1, Ana M González-Paramás, Celestino Santos-Buelga
1Department of Biochemistry, Biology and Genetics, Faculty of Medicine, Marche Polytechnic University, Via Ranieri 65, 60100 Ancona, Italy.
Abstract:
Five typical Cuban monofloral honeys were analyzed for their in vitro total antioxidant capacity (TAC), phenolic compounds, and ascorbic acid content. Identification and quantification of phenolics were carried out by HPLC-DAD-ESI/MS. Fourteen phenolic compounds could be identified (eight phenolic acids and six flavonoids), including three glycosylated derivatives. Similar contents of total phenolics were found in the different honeys, although they differed in their qualitative profiles. A significant (positive) correlation was found between the results of TAC obtained by parallel FIA-ABTS system and ORAC assay (r=0.9565, p<0.001). Similar correlations were also established between total phenolics and TAC, determined by either the ORAC (r=0.9633; p
