| 1 | The stabilising agent is a compound containing divalent metal ions, for example a basic salt of an alkaline earth metal. | |
| 2 | The recycling method includes the following steps: putting discs in the aqueous solution containing basic salt or alkali and alcohol for swelling treatment; | |
| 3 | Acid salts of neotame, sweetener salts of neotame, basic salts of neotame and metal complexes of neotame to improve the solubility and dissolution rate in water of neotame are introduced mainly. |