Patent ID: 7326430

Claim:
A method for preparing an alcohol-free liquid composition of N-[N-(3,3-dimethylbutyl)-L-α-aspartyl]-L-phenylalanine 1-methyl ester comprising the steps of: (a) providing an alcohol-free liquid carrier consisting of water and a suspending agent selected from the group consisting of carboxymethyl cellulose, algin, gum arabic, carrageenan, xanthan gum, guar gum, tragancanth, hydroxypropyl methyl cellulose, methylcellulose, pectin, locust bean gum, sodium alginate, propylene glycol alginate, caramel and mixtures thereof; and (b) mixing N-[N-(3,3-dimethylbutyl)-L-α-aspartyl]-L-phenylalanine 1-methyl ester with said alcohol-free liquid carrier, said alcohol-free liquid carrier consisting of water and a suspending agent selected from the group consisting of carboxymethyl cellulose, algin, gum arabic, carrageenan, xanthan gum, guar gum, tragancanth, hydroxypropyl methyl cellulose, methylcellulose, pectin, locust bean gum, sodium alginate, propylene glycol alginate, caramel and mixtures thereof, in a ratio of up to 3:2 to produce an alcohol-free liquid composition; wherein the N-[N-(3,3-dimethylbutyl)-L-α-aspartyl]-L-phenylalanine 1-methyl ester is mixed until fully dissolved or suspended.