Screening of Brazilian plant extracts for antioxidant activity by the use of DPPH free radical method

Autor:	L L, Mensor, F S, Menezes, G G, Leitão, A S, Reis, T C, dos Santos, C S, Coube, S G, Leitão
Rok vydání:	2001
Předmět:	Plants Medicinal Picrates Plant Extracts Bepridil Biphenyl Compounds Humans Free Radical Scavengers Medicine Traditional Antioxidants Brazil
Zdroj:	Phytotherapy research : PTR. 15(2)
ISSN:	0951-418X
Popis:	Brazilian plant extracts belonging to 16 species of 5 different families (71 extracts) were tested against the stable DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) free-radical. The ability to scavenge DPPH radical was measured in these experiments by the discoloration of the solution. Ginkgo biloba and rutin, commonly used as antioxidants for medical purposes, were used as standards. Based on our results, we can say that as a general rule the ethanol extracts of plants belonging to the Verbenaceae family showed lower EC(50) values than the other plant extracts. Among the partitions, the more polar ones (ethyl acetate and n-butanol) are those that generally have higher antioxidant activity (AA).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::010031dab1728c710a8affcf122e5e94 https://pubmed.ncbi.nlm.nih.gov/11268111 Zobrazit plný text záznamu Plný text