Abstract:In order to develop an excellent flavoring liquid of Lotus plumule liquor，the active substances in the Lotus plumule were extracted by reflux condensation and extraction process，and a suiTableclarification process was selected to purify the Lotus plumule extract.The results showed that the optimal extraction conditions were as follows：solid‐liquid ratio of 1∶50（g/mL），alcohol concentration of 75%，extraction temperature of 60 ℃，and extraction time of 4 h. The optimal clarification conditions were diatomaceous earth addition of 0.8 g/L，stand‐ing time of 24 h，and standing temperature of 25 ℃.The flavoring liquid of Lotus plumule liquor prepared under these optimal conditions contained methyl liensinine of 13.749 mg/mL，indicating good biological activity.