Brazilian bee pollen: phenolic content, antioxidant properties and antimicrobial activity. Issue 5 (20th October 2021)

• Record Type: Journal Article
• Authors: Soares de Arruda, Vanilda Aparecida; Vieria dos Santos, Alexandre; Figueiredo Sampaio, Davi; da Silva Araújo, Elias; de Castro Peixoto, André Luís; Estevinho, Leticia M.; de Almeida-Muradian, Ligia Bicudo
• Is Part Of: Journal of apicultural research. Volume 60:Issue 5(2021)
• Page Start: 775
• Page End: 783
• Publication Date: 2021-10-20
• Subjects: antimicrobial activity -- bee pollen -- dpph -- orac -- total phenolic compounds -- β-carotene -- bleaching assay; Bee culture -- Periodicals; Bee culture; Periodicals; 638.105
• DOI: 10.1080/00218839.2020.1840854
• Languages: English
• ISSNs: 0021-8839

Abstract

Abstract : Bee pollen has been promoted as a dietary supplement for humans due to its nutritional and bioactive properties. Sixty-two samples of Apis mellifera dehydrated bee pollen collected in Brazil (eight states and Federal District) were analyzed for phenolic compounds, flavonoids, antioxidant activity using DPPH, β-carotene and ORAC methods, and antimicrobial activity. The values obtained for total phenolic compounds ranged from 12.60 to 84.22 mg GAE/g bee pollen while total flavonoids oscillated between 1.90 and 36.85 mg quercetin/g bee pollen. The IC50 ranged from 0.35 to 13.42 mg bee pollen/mL of extract. The inhibition percentages ranged from 52.58 to 98.37% of bee pollen extract using the β-carotene method. When measured by the ORAC method, antioxidant activity was between 132.98 and 575.85 μmols eq. Trolox/g bee pollen. Bee pollen efficiently inhibited the growth of all the microorganisms studied. Candida albicans was the most resistant, while Staphylococcus epidermides was the most sensitive.