Antioxidative activity of flavones and flavonolsin vitro
Autor: | Takako Yokozawa, Mineo Shimizu, Zhong Wu Liu, Erbo Dong |
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Rok vydání: | 1997 |
Předmět: | |
Zdroj: | Phytotherapy Research. 11:446-449 |
ISSN: | 1099-1573 0951-418X |
Popis: | Forty-one flavonoids of the flavone and flavonol types were investigated for their antioxidative activity using a lipid peroxidation generation system mediated by the addition of H2O2/Fe2+ to rat liver homogenate. The results showed that both types specifically and markedly reduced the production of peroxidants induced by H2O2, Fe2+ or a Fenton-type reaction. The scavenging ability of these compounds was found to be associated closely with their chemical structure, especially the number of hydroxyl groups linked to the basic skeleton. However, there were some exceptions, implying that not only hydroxyl groups but also their configuration determines the activity. © 1997 John Wiley & Sons, Ltd. |
Databáze: | OpenAIRE |
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