IN-VITRO ANTIOXIDANT EFFECTS OF TANNIN EXTRACTS OF PISTACIA ATLANTICAAbstract
Seven parts of Pistacia atlantica were collected from Tlemcen in Algeria (fruits, leaves, buds, stems, roots internal and external trunk barks). Tannin content was determined and antioxidant activity of tannic extracts were measured using different assays: Total antioxidant capacity, 2,2-diphenyl-1-picrylhydrazyl (DPPH), reducing power (FRAP) and β-carotene bleaching assay The results showed that the highest tannin contents were observed in roots(49.789±0.391 mg CE/g DM) and internal trunk barks (49.095±0.306 mg CE/g DM). Tannins extracted from leaves, roots and external trunk barks showed very good DPPH radical scavenging activity (IC50 of 0.124±0.001, 0.304±0.001 and 0.440±0.001 mg/mL), ferric reducing power (0.021±0.001, 0.154±0.001 and 0.170±0.005 mg/mL) and β-carotene bleaching inhibition (0.313±0.009, 0.094±0.006 and 0.131±0.002 mg/mL), respectively. Therefore, the results suggest that this plant with all its studied parts might be considered as a potential candidate of possible health-promoting functional foods
Fethi Toul*, Nabila Belyagoubi-Benhammou, Amel Zitouni, Nacéra Ghembaza and Fawzia Atik-Bekkara
Département de Biologie, Faculté des Science de la Nature et de la Vie, des Sciences de la Terre et de l’Univers, Université Abou BakrBelkaid, BP 119, Imama, Tlemcen, Algérie.
22 June, 2015
20 September, 2015
19 October, 2015
01 January, 2016