Your browser doesn't support javascript.
loading
Total phenolic compounds and antioxidant activity of Stachys turcomanica / Compostos fenólicos totais e atividade antioxidante da Stachys turcomanica
Namvar, Khashaiar; Salehi, Esmaeil Ataye; Mokhtarian, Naeim.
  • Namvar, Khashaiar; Islamic Azad University. Quchan. IR
  • Salehi, Esmaeil Ataye; Islamic Azad University. Quchan. IR
  • Mokhtarian, Naeim; Islamic Azad University. Quchan. IR
Biosci. j. (Online) ; 34(5): 1349-1356, sept./oct. 2018.
Article in English | LILACS | ID: biblio-967325
ABSTRACT
The subject of free radicals and their effects on biological systems is an important problem in Medicine. Antioxidants can protect biological systems against free radicals. In this study, the effect of methanol ratio (0, 20, 50, 80, and 100%) in water on extraction yield of Total phenolic (TP) compounds and antioxidant activity (AA) of Stachys turcomanica extract were evaluated. The amount of TP compounds were determined using Folin-Ciocalteu reagent, and AA measured by 2, 2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing antioxidant power (FRAP) and betacaroten linoleic acid methods. The results showed extraction of phenolic compounds and their AA were affected by solvent combinations. In addition, there was a good correlation between TP content and AA of Stachys turcomanica extracts. Finally the methanol water (8020) was good solvent in extracting of phenolic compounds with highest AA.
RESUMO
O tema dos radicais livres e seus efeitos nos sistemas biológicos é um problema importante na medicina. Os antioxidantes podem proteger os sistemas biológicos contra os radicais livres. Neste estudo, avaliou-se o efeito da proporção de metanol (0, 20, 50, 80 e 100%) na água com o rendimento de extração de compostos fenólicos totais (TP) e atividade antioxidante (AA) do extrato Stachys turcomanica. A quantidade de compostos de TP foi determinada utilizando o reagente de Folin-Ciocalteu, e AA medido por 2, 2-difenil-1-picrilidrazilo (DPPH), poder antioxidante redutor férrico (FRAP) e ácido beta-caroten ácido linoleico. Os resultados mostraram a extração de compostos fenólicos e os seus AA foram afetados por combinações de solventes. Além disso, houve uma boa correlação entre o conteúdo de TP e os extratos de AA de Stachys turcomanica. Finalmente, o metanol água (8020) foi bom solvente na extração de compostos fenólicos com AA mais alto.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Stachys / Systems Biology / Phenolic Compounds / Free Radicals / Antioxidants Language: English Journal: Biosci. j. (Online) Journal subject: Agricultura / Disciplinas das Ciˆncias Biol¢gicas / Pesquisa Interdisciplinar Year: 2018 Type: Article Affiliation country: Iran Institution/Affiliation country: Islamic Azad University/IR

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Index: LILACS (Americas) Main subject: Stachys / Systems Biology / Phenolic Compounds / Free Radicals / Antioxidants Language: English Journal: Biosci. j. (Online) Journal subject: Agricultura / Disciplinas das Ciˆncias Biol¢gicas / Pesquisa Interdisciplinar Year: 2018 Type: Article Affiliation country: Iran Institution/Affiliation country: Islamic Azad University/IR