Chemical and antifungal investigations of six Lippia species (Verbenaceae) from Brazil.
Food Chem
; 135(3): 2086-94, 2012 Dec 01.
Article
en En
| MEDLINE
| ID: mdl-22953960
The Lippia genus is used in ethnobotany as food, beverages, seasoning and antiseptic remedies, among others. The chemical compositions of fifteen extracts of six Lippia species were investigated comparatively by HPLC-PDA. To avoid data replication of previous works on this genus, Lippia lupulina Cham. root ethanol extract was selected for isolation procedures based on Principal Component Analyses (PCA) of such data. Seven compounds previously unreported in this genus were isolated from this extract (a triterpene, two furanonaphtoquinones, a furanochromone, an isoflavone, a stilbene and an iridoid). The activities of extracts, fractions and pure compounds towards Candida albicans, Candida krusei, Candida parapsilosis and Cryptococcus neoformans were investigated. Two fractions from the extract of Lippia salviaefolia leaves showed marked inhibition of fungal growth, in addition to verbascoside and asebogenin, which showed MICs lower than 15.6µg/ml and may be promising leads for the development of new antifungal agents, especially against C. neoformans.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Extractos Vegetales
/
Lippia
/
Antifúngicos
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Food Chem
Año:
2012
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Reino Unido