Alimentos e Nutrição Araraquara, Vol. 20, No 2 (2009)

Tamanho da fonte:  Menor  Médio  Maior

Effects of green coffee bean extract in some biomarkers of adult brazilian subjects

M. A. A. JÁCOME, S. K. UEHARA, W. L. A. MONTEIRO, R. F. A. MOREIRA, C. A. B. DE MARIA, G. ROSA

Resumo



The purpose of the present study was to analyze the acute effects of the green coffee extracts consumption in some biomarkers of adult Brazilian subjects. Twenty healthy adult subjects between 18 and 35 years old of different sex and ethnic groups took part in the present study. All participants were submitted a 12 hours overnight fast before experiments. Plasma and serum biochemical parameters were measured in distinct intervals after a breakfast standard ingestion and 0.6 L of green coffee been extract consumption. No statistically differences (Wilcoxon test) on serum lipid profi le and plasmatic homocysteine concentration were noted after green coffee beverage intake. Caffeine has been associated with increase of the glycaemia in roasted coffee consumers. In the present study, a signifi cant increase (p= 0.03) in glycaemia was observed thirty minutes after the green coffee beverage ingestion and, then, there was a tendency of glycaemia maintenance. The low amount of free caffeine found in green coffee matrix could explain the quick stabilization of the glycaemia. The ingestion of green coffee beverage also signifi cantly reduced uricaemia (p= 0.03) (Wilcoxon test). It is possible that the polyphenols, present in high amounts in this beverage, could act inhibiting the xanthine oxidase enzyme. Therefore, the consumption of green coffee has to stabilize blood glucose 30 minutes after ingestion of test meal, and reduction of uricaemia.


Texto Completo: PDF

Comentários sobre o artigo

Visualizar todos os comentários

A submissão de artigos está sendo feita no novo Portal da Revista de Alimentos e Nutrição
Será necessário se recadastrar para submeter novos artigos