Polyphenolic profile and antioxidant and antibacterial activities of monofloral honeys produced by Meliponini in the Brazilian semiarid region

Autor: Marciane Magnani, Beatriz Gullón, Bruno Raniere Lins de Albuquerque Meireles, Maria Manuela Pintado, Janaína Maria Batista de Sousa, Evandro Leite de Souza, Ângela Maria Tribuzy de Magalhães Cordeiro, Gilmardes Marques
Přispěvatelé: Veritati - Repositório Institucional da Universidade Católica Portuguesa
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
ISSN: 1873-7145
0963-9969
Popis: This study assessed the polyphenolic profile and the antioxidant and antibacterial activities ofmonofloral honeys produced by Meliponini in the Brazilian semiarid region. Honeys from Ziziphus joazeiro Mart. (juazeiro) and Croton heliotropiifolius Kunth (velame branco) showed the highest total phenolic contents (TPCs) and the greatest antioxidant activity in assays with DPPH and ABTS•+ radicals. Honeys from Mimosa quadrivalvis L. (malícia) presented the strongest anti-peroxyl activity in ORAC assay. Juazeiro honeys showed the highest quantities of trans-cinnamic, p-coumaric, ellagic and ferulic acids, as well as of catechin, rutin, hesperetin and chrysin when compared to the other honeys produced by the same bee species. Malícia honeys showed the greatest quantities of myricetin, quercetin and kaempferol among the studied honeys. Honeys with the highest TPCs presented the highest antimicrobial activity. The results showed the impact of the floral source on the polyphenolic profile as well as on the antioxidant and antimicrobial properties of Meliponini honeys.
The authors would like to thank the Coordination for the Improvement of Higher Education Personnel (CAPES, Brazil) for the Science Without Borders scholarship awarded to the first author (Sousa, J.M.B.) and the National Council for Scientific and Technological Development (CNPq—Brazil) and the Foundation for Science and Technology (FCT—Portugal) for the financial support.Moreover, the authorswould like to thank the beekeepers for providing the honey samples.
Databáze: OpenAIRE