LC-ESI/MS-phytochemical profiling with antioxidant and antiacetylcholinesterase activities of Algerian L.f. extracts.

L.f. is a flowering plant from the Asteraceae family that is native to South Africa and which was observed recently in the north and the east of Algeria. This study was aimed for the first time, to evaluate concomitantly phytochemical profiles, using LC-ESI/MS analysis, following by testing and assessing antioxidant and antiacetylcholinesterase activities of these specific species. The results indicated that the hydromethanolic and the acetate extracts have shown remarkable potent inhibitory effects on AChE with IC of (6.04 ± 0.05; 6.72 ± 0.10 µg/mL) respectively along with antioxidant potential of acetate for FRAP and phenanthroline methods with A of (11.15 ± 0.72; 5.72 ± 0.13 µg/mL) successively. Moreover, a high amount of cynarin and -ferulic acid was found in this extract whilst butanolic extract has recorded the highest amount of chlorogenic acid. Indeed phenolic compounds usually have a hydroxyl in their structure which may contribute significantly to the antioxidant activity.