Skip to Main content Skip to Navigation
Journal articles

Antioxidant activities, total phenolic contents and chemical compositions of extracts from four Cameroonian woods: Padouk (Pterocarpus soyauxii Taubb), tali (Erythrophleum suaveolens), moabi (Baillonella toxisperma), and movingui (Distemonanthus benthamianus)

Abstract : The antioxidant activities, total phenolic contents and chemical compositions of extracts from four Cameroonian woods were investigated. The antioxidant activities were evaluated using the scavenging of 2-2-diphenyl-1-picrylhydrazyl radical (DPPH.) and the oxygen uptake method. The total phenolic content (TPC) was evaluated according to the Folin-Ciocalteu assay in which gallic acid was used as standard. Condensed tannins were evaluated by using the Stiasny method. Chemical compositions of the extracts were evaluated by GC-MS. The results show that toluene/ethanol extracts from tali (Erythrophleum suaveolens) exhibit the highest antioxidant activity with CE50 value of 3.1 mg/L followed by movingui (Distemonanthus benthamianus) extracts (CE50 value 3.9 mg/L), padouk (Pterocarpus soyauxii Taubb) and moabi (Baillonella toxisperma) (CE50 value of 5.5 mg/L and 44 mg/L respectively). The TPC and condensed tannins of extracts were in the range of 54-992 mg eq. gallic acid/g of extract and 8-60%, respectively. Homopterocarpin and pterocarpin were the major compounds found in the extracts of padouk. Catechin, gallic acid, and pyrogallol were the major compounds identified in tali extracts. Movingui extracts principally contain diterpenes. Gallic acid, squalene and triperpenes were the major compounds of moabi extracts.
Document type :
Journal articles
Complete list of metadata

https://hal.univ-lorraine.fr/hal-01593624
Contributor : Lermab Ul Connect in order to contact the contributor
Submitted on : Tuesday, September 26, 2017 - 3:01:19 PM
Last modification on : Thursday, April 12, 2018 - 3:14:04 PM

Identifiers

Collections

Citation

Jean-Bosco Tchinda Saha, Daouda Abia, Stephane Dumarcay, Maurice Kor Ndikontar, Philippe Gérardin, et al.. Antioxidant activities, total phenolic contents and chemical compositions of extracts from four Cameroonian woods: Padouk (Pterocarpus soyauxii Taubb), tali (Erythrophleum suaveolens), moabi (Baillonella toxisperma), and movingui (Distemonanthus benthamianus). Industrial Crops and Products, Elsevier, 2013, 41, pp.71-77. ⟨10.1016/j.indcrop.2012.04.012⟩. ⟨hal-01593624⟩

Share

Metrics

Record views

128