Idioma:

Antioxidant properties, total phenols and pollen analysis of propolis samples from Portugal

Moreira, Leandro ; Dias, Luís G. ; Pereira, José Alberto ; Estevinho, Leticia

Food and chemical toxicology, 2008-11, Vol.46 (11), p.3482-3485 [Periódico revisado por pares]

Oxford: Elsevier Ltd

Texto completo disponível

Citações Citado por

Enviar para

Título:
Antioxidant properties, total phenols and pollen analysis of propolis samples from Portugal
Autor: Moreira, Leandro ; Dias, Luís G. ; Pereira, José Alberto ; Estevinho, Leticia
Assuntos: Antioxidant activity ; antioxidants ; Antioxidants - analysis ; Antioxidants - metabolism ; Antioxidants - pharmacology ; Biological and medical sciences ; Biphenyl Compounds - antagonists & inhibitors ; Biphenyl Compounds - metabolism ; Biphenyl Compounds - toxicity ; botanical composition ; chemical analysis ; Colorimetry ; Dose-Response Relationship, Drug ; Food Preservatives - analysis ; Food Preservatives - metabolism ; Food Preservatives - pharmacology ; free radical scavengers ; Free Radical Scavengers - metabolism ; free radicals ; General pharmacology ; honey and bee products ; Hydrazines - antagonists & inhibitors ; Hydrazines - metabolism ; Hydrazines - toxicity ; Medical sciences ; Oxidation-Reduction ; Pharmacognosy. Homeopathy. Health food ; Pharmacology. Drug treatments ; phenols ; Phenols - analysis ; Phenols - metabolism ; Phenols - pharmacology ; Picrates ; Plant Extracts - analysis ; Plant Extracts - metabolism ; Plant Extracts - pharmacology ; Polinic analysis ; pollen ; Pollen - chemistry ; polyphenols ; Portugal ; Propolis ; Propolis - chemistry ; Total phenols
É parte de: Food and chemical toxicology, 2008-11, Vol.46 (11), p.3482-3485
Notas: http://dx.doi.org/10.1016/j.fct.2008.08.025
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Pollen analysis, total phenols content and antioxidant activity were studied for the first time in Portuguese propolis samples from Bornes and Fundão regions. Total phenols content was determined by colorimetric assay and their amount was of 329 mg/g of GAE in Bornes sample and 151 mg/g of GAE in Fundão propolis. The antioxidant capacity of propolis extracts was assessed through the scavenging effects on DPPH (2,2-diphenyl-1-picrylhydrazyl) and reducing power of iron (III)/ ferricyanide complex assays. A concentration-dependent antioxidative capacity was verified in DPPH and reducing power assays. Low values of EC 50 on DPPH scavenging assay were obtained for Bornes and Fundão propolis (of 6.22 μg/mL and 52.00 μg/mL, respectively). For reducing power the values were 9.00 μg/mL, for Bornes propolis, and 55.00 μg/mL, for Fundão propolis. The high activity of propolis from Bornes could be related with their different pollen composition. The results obtained indicate that Portuguese propolis is an important source of total phenols showing antioxidant properties that could be beneficial for human health.
Editor: Oxford: Elsevier Ltd
Idioma: Inglês

Links

Voltar para lista de resultados

Resultado 1 Avançar Ir para próxima página

Realização: Logos de Redes Sociais:

Antioxidant properties, total phenols and pollen analysis of propolis samples from Portugal

Moreira, Leandro ; Dias, Luís G. ; Pereira, José Alberto ; Estevinho, Leticia

Oxford: Elsevier Ltd

Buscando em bases de dados remotas. Favor aguardar.