[Detection of antioxidative capacity of bamboo leaf extract by scavenging organic free radical DPPH].
Guang Pu Xue Yu Guang Pu Fen Xi
; 28(7): 1578-82, 2008 Jul.
Article
em Zh
| MEDLINE
| ID: mdl-18844164
ABSTRACT
By studying on absorption spectrum of DPPH solution and DPPH reaction system, the conclusion was drawn as follows, the wavelength for the determination of DPPH reaction system by spectrophotometric method was chosen to be 518.4 nm, DPPH reaction system was 4.00 mL of 257.7 mg x L(-1) DPPH+1 mL of antioxidant solution with the reaction time of DPPH reaction system of 40 min. The relation between DPPH radical scavenging rate and the concentration of TBHQ and BHT was studied, and IC50 (the value of antioxidant concentration for scavenging half of DPPH radical) was used as the index to evaluate scavenging capacity. The determining IC50 values were as follows TBHQ (21.14 mg x L(-1)), BHT(42.09 mg x L(-1)) and M40 (108.40 mg x L(-1)). Bamboo leaf extract could be used as natural antioxidant.
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Base de dados:
MEDLINE
Assunto principal:
Picratos
/
Compostos de Bifenilo
/
Extratos Vegetais
/
Sequestradores de Radicais Livres
/
Bambusa
/
Radicais Livres
/
Antioxidantes
Tipo de estudo:
Diagnostic_studies
Idioma:
Zh
Revista:
Guang Pu Xue Yu Guang Pu Fen Xi
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
China