Abstract: This paper is about the comparative research of hydrolysis condition of different protease to ant protein. The results shown that trypsin had better hydrolysis activity with optimum bydrolysis condition as temperature 45℃. pH8. 0, Substrate concentration 7.5 %, Enzyme/substrate ratio 6000u/g and hydroysis time 6h. The efficiency of amin-N product is 43%. There are 18 links of amino acids in the hydrolysate.The essential amino acids account for 54. 4% of total amount of amino acid. The TCA-NSI is 92%. These results shown that hydrolysate from the ant protein was a high nutritive protein liquid.

Key words:  , Ant protein Trypsin Hydrolysate；