Abstract:

The peptides, which show enhanced memory effect, from Panax ginseng were separated on a Sephadex LH20 column, the mobile phase was volume fraction 10% of methanol, and purified by HPLC. Then the amino acid sequence was analysed by protein sequencer. The results of amino acid sequential analysis showed that a novel tripeptide whose amino acid sequence is GlnThrSer was obtained.

Key words: Panax ginseng, amino acid, sequential analysis, tripeptide