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Food Chem Toxicol ; 47(8): 2052-6, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19481130

RESUMO

Russula delica Fr. is a well known macrofungi which is used as a food in Turkey. The ethanolic extract of R. delica exhibited antimicrobial activity against some of the tested foodborne and spoilage bacteria. The phenolic composition of R. delica ethanolic extract was analyzed by high performance liquid chromatography (HPLC). The major component in R. delica ethanolic extract was catechin (5.33 mg/L). Antioxidant activities of the ethanolic extract of R. delica was evaluated by using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals scavenging and chelating ability on ferrous ions assays. Scavenging effect on DPPH radicals was 26% at 10mg/ml and chelating effects on ferrous ions was 58% at 5mg/ml. In addition, the amounts of total phenol content (6.23 mg/g), ascorbic acid (2.93 mg/g), beta-carotene (0.11 mg/g) and lycopene (0.03 mg/g) in the macrofungi ethanolic extract were determined.


Assuntos
Agaricales/química , Anti-Infecciosos/farmacologia , Antioxidantes/farmacologia , Ácido Ascórbico/análise , Compostos de Bifenilo/química , Carotenoides/análise , Catequina/química , Cromatografia Líquida de Alta Pressão , Etanol , Sequestradores de Radicais Livres/química , Sequestradores de Radicais Livres/farmacologia , Radicais Livres/química , Indicadores e Reagentes , Quelantes de Ferro/química , Quelantes de Ferro/farmacologia , Licopeno , Testes de Sensibilidade Microbiana , Fenóis/análise , Picratos/química , Extratos Vegetais/farmacologia , Solventes , beta Caroteno/análise
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