**5.11 Acetyl cholinesterase**

*P. atlantica* exhibited a significant acetylcholinesterase inhibition effect [44]*.* The crude extract and different fractions and fruit stem metabolites of *P. vera* caused the significant acetylcholinesterase inhibition [88]. The inhibition of acetylcholinesterase by the *P. khinjuk* has also been reported [95].
