Algerian Journal of Biosciences
Volume 1, Numéro 1, Pages 14-17

Effects Of Extraction Methods On Total Polyphenols, Free Radical Scavenging And Antibacterial Activity Of Crude Extracts Of Cleome Arabica L. Growing In Oued Souf Region

Authors : Chouikh Atef . Rebiai Abdelkrim . Aref Mahdia . Heded Mounira . Adjal El Hadda . Alia Fatma .


This study aims to phytochemical study, antiradical scavenging and antibacterial Activity of the extracts of Cleome arabica L. from the region of Oued Souf (East South Algerian). The crud extracts two methods obtained methanolic were maceration (EM) and ultra-sound (EU). The yields were: 8.95% and 9.60%, respectively. The quantitative estimation of total polyphenols is 11.57 mg EAG/g Ex (EM) and 13.46 mg EAG/g Ex (EU). The flavonoids contents in (EM) and (EU) are respectively 5.48 and 6.19 mg EQu/g Ex. the anti-free radical activity in the extracts at (concentration 0.1mg/ml) showed a great capacity to scavenge of the DPPH• radical and the percentage of inhibition was 41% in (EM) and 60.67 % in (EU). The results of the antibacterial activity of two bacterial strains: Escherichia coli and Staphylococcus aureus, revealed that Cleome arabica L. has a significant effect on the two strains with inhibition zones variable from 0 to 12 mm for Escherichia coli and 0 to 13 mm for Staphylococcus aureus.


Cleome arabica L.; Maceration (EM); Ultra-sound (EU); Total polyphenols; Anti-free radical activity; Antibacterial activity.

Antioxidant, Antibacterial And Cell Toxicity Effects Of Polyphenols From Ahmeur Bouamer Grape Seed Extracts

Ghouila Z. .  Laurent S. .  Boutry S. .  Vander Elst L. .  Nateche F. .  Muller R. N. .  Baaliouamer A. . 
pages 392-410.

Total Phenolic Contents, Radical Scavenging And Cyclic Voltammetry Of Three Native Date (phoenix Dactylifera L.) Varieties Grown In Ouargla

Zineb Ghiabaa Zineb .  Yousfi Mohamed .  Saidi Mokhtar .  Hadjadj Mohamed .  Dakmouche Messaouda . 
pages 70-79.

Phenolic Content And Antioxidant Activity Of Extracts From Acacia Arabica Barks

Moulay Yamna .  Ghiaba Zineb .  Saϊdi Mokhtar . 
pages 20-25.

Rich Extract On Total Polyphenols And Antioxidant Activity Obtained By Conventional And Non-conventional Methods From Ahmeur Bouamer Grape Seed

Ghouila Z. .  Laurent S. .  Henoumont C. .  Vander Elst L. .  Muller R. N. .  Baaliouamer A. . 
pages 692-711.