Document Detail


Antioxidant Capacity and Phenolic Content of Caesalpinia pyramidalis Tul. and Sapium glandulosum (L.) Morong from Northeastern Brazil.
MedLine Citation:
PMID:  21654579     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The aims of this study were to quantify the phenolic content and evaluate the antioxidant potential of extracts from the bark and leaves of C. pyramidalis and S. glandulosum. The total phenolic content (TPC) and total tannin content (TTC) were determined using the Folin-Ciocalteu method, and the total flavonoids content (TFC) was measured via complexation with aluminum chloride. The antioxidant activity was evaluated with DPPH (2.2-diphenyl-1-picrylhydrazyl) and FIC (ferrous ion chelating) assays. The TPC ranged between 135.55 ± 9.85 and 459.79 ± 11.65 tannic acid equivalents (TAE) in mg/g material (mg TAE/g). The leaves of both species contained high levels of tannins and flavonoids. The crude ethanol extracts (CEE) from the bark of C. pyramidalis showed high antioxidant activity when compared to ascorbic acid and rutin, whereas the CEE from the leaves was more efficient in chelating ferrous ions. C. pyramidalis had very high phenolic content and anti-radical activity, which indicates a need for further studies aimed at the purification and identification of compounds responsible for the antioxidant activity.
Authors:
Carlos Henrique Tabosa Pereira da Silva; Tadeu José da Silva Peixoto Sobrinho; Valérium Thijan Nobre de Almeida E Castro; Danielle da Cunha Amaral Lima; Elba Lúcia Cavalcanti de Amorim
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Publication Detail:
Type:  Journal Article     Date:  2011-06-07
Journal Detail:
Title:  Molecules (Basel, Switzerland)     Volume:  16     ISSN:  1420-3049     ISO Abbreviation:  Molecules     Publication Date:  2011  
Date Detail:
Created Date:  2011-06-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100964009     Medline TA:  Molecules     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  4728-39     Citation Subset:  IM    
Affiliation:
ASCES College, Caruaruense Association of Higher Education, 55016-400, Caruaru-PE, Brazil. henriquetabosa@yahoo.com.br.
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