Phytochemical and antioxidant studies of Laurera benguelensis growing in Thailand
Biol. Res
; 43(2): 169-176, 2010. ilus
Article
en En
| LILACS
| ID: lil-567531
Biblioteca responsable:
CL1.1
ABSTRACT
The aim of this study was to investigate metabolites of the lichen Laurera benguelensis. A high-performance liquid chromatographic (HPLC) method has been developed for the characterization of xanthones and anthraquinones in extracts of this lichen. Lichexanthone, secalonic acid D, norlichexanthon, parietin, emodin, teloschistin and citreorosein were detected in the lichen samples, which were collected from two places in Thailand. Components of the lichen were identifed by relative retention time and spectral data. This is the frst time that a detailed phytochemical analysis of the lichen L. benguelensis was reported and this paper has chemotaxonomic signifcance because very little has been published on the secondary metabolites present in Laurera species. Some of the metabolites were detected for the frst time in the family Trypetheliaceae. The results of preliminary testing of benzene extract and its chloroform and methanol fractions showed that all samples showed a weak radical scavenging activity. The chloroform extract showed the highest antioxidant activity.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
Depuradores de Radicales Libres
/
Antraquinonas
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Xantonas
/
Líquenes
País/Región como asunto:
Asia
Idioma:
En
Revista:
Biol. Res
Asunto de la revista:
BIOLOGIA
Año:
2010
Tipo del documento:
Article
/
Project document