Distribution of metabolites in galled and non-galled leaves of Clusia lanceolata and its antioxidant activity

Revista Brasileira de Farmacognosia

Silva, Telma M.G. da¹  Universidade Federal Rural de Pernambuco, Recife, Brazil¹  Carvalho Junior, Almir R. de¹  Silva, Tania M.S. da¹  Carvalho, Mário G. de¹  Universidade Federal Rural do Rio de Janeiro, Seropédica, Brazil¹  Castro, Rosane N.¹  Ferreira, Rafaela O.¹ 

关键词: Clusia lanceolata;    Galls;    Essential oil;    Phenols;    Flavones;    Antioxidants;   

DOI  :  10.1016/j.bjp.2014.11.005

来源: Sociedade Brasileira de Farmacognosia

【 摘 要 】

Essential oils of galled and non-galled leaves of Clusia lanceolataCambess., Clusiaceae, were obtained by hydrodistillation and analyzed by GC and GC/MS. The chemical composition of both oils was similar, with a predominance of sesquiterpene caryophyllenes. The extracts from the leaves were evaluated regarding total phenols, flavonoids and proanthocyanidins. Galled leaves showed higher levels of phenolics and proanthocyanidins, since the content of flavonoids was higher in non-galled leaves. The chromatographic profiles of extracts were obtained by using HPLC/DAD and LC-ESI-MS. Electrospray ionisation (ESI) in positive and negative ion mode was used to identify four flavones C-glycosides in both extracts. The study constitutes a first report on the chemical research of C. lanceolata. The extract from galled leaves had a higher antioxidant activity.

【 授权许可】

Unknown