Text this: Bioactivity-guided separation of the active compounds in acacia pennata responsible for the prevention of Alzheimer's disease

 ______     _____     ____       ___      ______  
|      \\  |  ___||  |  _ \\    / _ \\   /_   _// 
|  --  //  | ||__    | |_| ||  | / \ ||  `-| |,-  
|  --  \\  | ||__    | .  //   | \_/ ||    | ||   
|______//  |_____||  |_|\_\\    \___//     |_||   
`------`   `-----`   `-` --`    `---`      `-`'