Skip to main content
Article thumbnail
Location of Repository

Atividade das glicosidases na presença de chá verde e de chá preto Activity of glycosidases in the presence of green tea and black tea

By L.L.S. Pereira, S.P. Souza, M.C Silva, G.A. Carvalho, C.D. Santos, A.D. Corrêa and C.M.P. Abreu

Abstract

Várias plantas têm sido consideradas produtos terapêuticos, dentre elas destacam-se os chás verde e preto, popularmente utilizados para controle da hiperglicemia e obesidade. Objetivou-se neste trabalho avaliar o potencial inibitório sobre as enzimas &#945;-amilase, &#945; e &#946;-glicosidases e o teor de compostos fenólicos do chá verde e do chá preto. O teor de compostos fenólicos encontrados foram de 80,8 ± 0,43 mg g-1 no chá preto e 32,0 ± 0,12 mg g-1 no chá verde. O chá verde e o chá preto, em condições de consumo, inibiram as enzimas em estudo, porém, após a simulação do fluido gástrico o inibidor presente no chá verde perdeu a ação. O chá preto deixou de inibir a &#945;-amilase e apresentou inibição inalterada para &#945; e &#946;-glicosidases. Tais resultados sugerem que o chá preto pode ser auxiliar em dietas de restrição de carboidratos.<br>Several plants have been considered therapeutic products, including green and black tea, popularly used to control hyperglycemia and obesity. This study aimed to evaluate the inhibitory potential of the enzymes &#945;-amylase, &#945; and &#946;-glycosidases, as well as the content of phenolic compounds in green tea and black tea. The concentrations of phenolic compounds found were 80.8 ± 0.43 mg g-1 in black tea and 32.0 ± 0.12 mg g-1 in green tea. Under the tested conditions of use, green and black tea inhibited the enzyme under study. However, after simulation of the gastric fluid, the inhibitor present in green tea lost its action. Black tea no longer inhibited a-amylase and showed unaltered inhibition for &#945; and &#946;-glycosidases. These results suggest that black tea can be helpful in diets restricting carbohydrates

Topics: Camellia sinensis, inibição enzimática, hiperglicemia, obesidade, Camellia sinensis, enzymatic inhibition, hyperglycemia, obesity, Pharmacy and materia medica, RS1-441, Medicine, R, DOAJ:Pharmacy and materia medica, DOAJ:Medicine (General), DOAJ:Health Sciences, Botany, QK1-989, Science, Q, DOAJ:Botany, DOAJ:Biology, DOAJ:Biology and Life Sciences
Publisher: Universidade Estadual Paulista
Year: 2010
DOI identifier: 10.1590/S1516-05722010000400017
OAI identifier: oai:doaj.org/article:43b260f769c14ff7b9a8dad4eca74b86
Journal:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • https://doaj.org/toc/1983-084X (external link)
  • https://doaj.org/toc/1516-0572 (external link)
  • http://www.scielo.br/scielo.ph... (external link)
  • https://doaj.org/article/43b26... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.