Evaluation of antioxidant activities of the edible and medicinal Acacia albida organs related to phenolic compounds

Autor: Karoune, Samira, Hanen Falleh, Kechebar, Mohamed Seif Allah, Halis, Youcef, Khaoula Mkadmini, Belhamra, Mohamed, Chaabane Rahmoune, Ksouri, Riadh
Rok vydání: 2015
DOI: 10.6084/m9.figshare.1147338
Popis: This study compared phenolic contents and antioxidant activity in different organs of Acacia albida (leaves and bark) and focuses on identification of phenolic compounds of leaves by HPLC-DAD. The analysed organs exhibited differences in total polyphenol contents (100 and 59.5 mg GAE g− 1 DW). Phenolic contents of leaves were two times higher than those in bark. Ethanolic extracts exhibited good antioxidant activities with IC50 = 26 μg mL− 1 for DPPH and EC50 = 50 μg mL− 1 for FRAP. Identification by HPLC-DAD revealed the presence of nine phenolic compounds known for their high antioxidant activity. The results suggested that this species can be used as source of natural antioxidants.
Databáze: OpenAIRE