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Phenolic Compounds in Honey and Their Relationship with Antioxidant Activity, Botanical Origin, and Color.

ABSTRACT: Honey has been employed since antiquity due to its sensory, nutritional, and therapeutic properties. These characteristics are related to its physical and chemical composition. For example, phenolic compounds are substances that can determine antioxidant activity, as well as sensory characteristics, and can be employed as biomarkers of floral and geographical origin. This has generated a growing interest in the study of phenolic compounds and their influence in the intrinsic properties of this beekeeping product. This review aims to summarize, analyze, and update the status of the research that demonstrates the role of phenolic compounds in antioxidant activity, botanical-geographical origin, and the sensory characteristics of honey. These phenolic compounds, according to various results reported, have great relevance in honey's biological and functional activity. This leads to research that will link phenolic compounds to their floral, geographical, productive, and territorial origin, as well as some sensory and functional characteristics.

SUBMITTER: Becerril-Sanchez AL

PROVIDER: S-EPMC8614671 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Phenolic Compounds in Honey and Their Relationship with Antioxidant Activity, Botanical Origin, and Color.

Becerril-Sánchez Ana L AL Quintero-Salazar Baciliza B Dublán-García Octavio O Escalona-Buendía Héctor B HB

Antioxidants (Basel, Switzerland) 20211027 11

Honey has been employed since antiquity due to its sensory, nutritional, and therapeutic properties. These characteristics are related to its physical and chemical composition. For example, phenolic compounds are substances that can determine antioxidant activity, as well as sensory characteristics, and can be employed as biomarkers of floral and geographical origin. This has generated a growing interest in the study of phenolic compounds and their influence in the intrinsic properties of this b ...[more]

PMID: 34829570

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Project description:Five types of honey (multifloral, sunflower, linden, rapeseed, and acacia), from Southern Romania, were classified using chemometrics methods coupled with IR spectroscopy. The botanical origin's effect on the physicochemical characteristics of honey was studied to highlight the most valuable plant source of honey. Except for antioxidant activity, the moisture, ash, electrical conductivity (EC), pH, free acidity (FA), total sugar content (TSC), hydroxymethylfurfural (HMF), total phenolic (TPC), tannin (TTC), and flavonoid content (TFC) were significantly influenced by the botanical origin of the honey. The results showed that sunflower honey had the highest moisture (15.53%), free acidity (16.67 mEq kg-1), electrical conductivity (483.92 µS cm-1), phenolics (167.59 mg GAE 100 g-1), and flavonoids (19.00 mg CE 100 g-1), whereas multifloral honey presented the highest total sugar content (69.64 g Glu 100 g-1). The highest HMF content was found in linden honey (33.94 mg kg-1). The HMF contents of all tested honey were within the standard recommended limit, and they confirmed that the tested honey was free of any heat treatment. All five types of tested honey presented a safe moisture content for storage and consumption (12.21-18.74%). The honey's free acidity was in the range of 4.00 to 25.00 mEq kg-1; this indicated the freshness of the samples and the absence of any fermentation processes in the tested honey. Honey with a total sugar content over 60% (except for linden honey, with 58.05 g glucose 100 g-1) showed the characteristic of nectar-derived honey. The elevated antioxidant activity of honey was correlated with its high moisture, flavonoids, and HMF, whereas the tannins and HMF were positively correlated with ash and electrical conductivity. The higher content of phenolics, flavonoids, and tannins was correlated with higher free acidity. The chemometric method, coupled with ATR-FTIR spectra, revealed a clear separation between linden honey from acacia, multifloral, and sunflower honey.

Dataset Information

Phenolic Compounds in Honey and Their Relationship with Antioxidant Activity, Botanical Origin, and Color.

Publications

Phenolic Compounds in Honey and Their Relationship with Antioxidant Activity, Botanical Origin, and Color.

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