Phenolic profile, antioxidant activity and palynological analysis of stingless bee honey from Amazonas, Northern Brazil

•The flavonoid taxifolin is reported for the first time in stingless bee honey.•Clidemia is the predominant pollen type in the Melipona seminigra merrillae honey from Amazonas, Brazil.•M. seminigra merrillae honeys display remarkable antioxidant and antimicrobial activities.•The catechol compounds i...

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Bibliographic Details
Published in:Food chemistry 2013-12, Vol.141 (4), p.3552-3558
Main Authors: da Silva, Isnandia Andréa Almeida, da Silva, Tania Maria Sarmento, Camara, Celso Amorim, Queiroz, Neide, Magnani, Marciane, de Novais, Jaílson Santos, Soledade, Luiz Edmundo Bastos, Lima, Edeltrudes de Oliveira, de Souza, Antonia Lucia, de Souza, Antonio Gouveia
Format: Article
Language:English
Subjects:
Amazonian honeys
Animals
Anti-Bacterial Agents - analysis
Anti-Bacterial Agents - pharmacology
Antioxidants - analysis
Antioxidants - pharmacology
Bacteria - drug effects
Bacteria - growth & development
Bees
Biological and medical sciences
Brazil
Food toxicology
Honey - analysis
Medical sciences
Melipona (Michmelia) seminigra merrillae
Melissopalynology
Phenolic compounds
Phenols - analysis
Phenols - pharmacology
Pollen - chemistry
Stingless bees
Toxicology
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Summary:•The flavonoid taxifolin is reported for the first time in stingless bee honey.•Clidemia is the predominant pollen type in the Melipona seminigra merrillae honey from Amazonas, Brazil.•M. seminigra merrillae honeys display remarkable antioxidant and antimicrobial activities.•The catechol compounds in Brazilian honeys are identified. In this study honey samples produced by Melipona (Michmelia) seminigra merrillae, collected in seven counties distributed in the central and southern region of Amazonas state in Brazil, were analysed for their botanical origin, content and profile of phenolic compounds, and antioxidant and antimicrobial activities. Twenty-two pollen types were identified. The total phenolic content ranged from 17 to 66mgGAE/g of extract; the highest contents were found in honeys produced from pollen types such as Clidemia and Myrcia. The antioxidant activity was higher in the samples that contained higher quantities of phenolic compounds. In relation to the antibacterial activity, samples CAD3, CAD4 and SAD3 presented the best results. Fourteen phenolic compounds were determined. Among them, we identified the flavonoid taxifolin, which has not previously been described in honeys from stingless bees, and we report the identification of catechol in Brazilian honey samples for the first time.
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2013.06.072