abstract |
The present invention may provide an adhesive composition comprising lysine, citric acid and water, wherein the lysine and citric acid are in the form of aqueous salt solutions, and precipitates thereof are not formed in the aqueous solutions. In addition, the present invention may provide a method for preparing an adhesive composition, the method comprising the steps of: mixing lysine, citric acid and water; and stirring the mixture at 80°C or lower, wherein the lysine, citric acid and water content in the adhesive composition is controlled so as to prevent precipitates of the lysine and citric acid from forming. |