Article history: Received 17 August 2010 Received in revised form 28 January 2011 Accepted 31 January 2011 Available online 15 March 2011 Cognitive enhancing substances such as amphetamine and modafinil have become popular in recent years to improve acute cognitive performance particularly in environments in which enhanced cognition or intelligence is required. Nutraceutical nootropics, which a...

Huperzia serrata (Thunb. Ex Murray) Trevis belonging to the Lycopodiaceae family contains main active ingredient Huperzine A (HupA), which is effective in treatment of dementia. However, H. nature a low content HupA. Additionally, this plant grows very slowly and overexploited, thereby leading risk extinction. In study, we used vitro shoot induce multiplication by tissue culture method quantify...