Metal complexes of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester
AssigneeThe NutraSweet Company
InventorsIndra Prakash, Zhi Guo
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Abstract
Dipeptide sweeteners are disclosed that are metal complexes of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester represented by the formula ##STR1## wherein X.sup.p+ is selected from the group consisting of Al.sup.3+, Fe.sup.2+, Fe.sup.3+, Ca.sup.2+, Mg.sup.2+ and Zn.sup.2+ ; Y.sup.q- is selected from the group consisting of Cl.sup.-, SO.sub.4.sup.2-, PO.sub.4.sup.3- and CH.sub.3 COO.sup.- ; x is a number from 1 to 4 and pn=qm. Also disclosed is a liquid low-calorie sweetener containing such metal complexes.
Claims5
A metal complex of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester represented by the formula ##STR4## wherein X.sup.p+ is selected from the group consisting of Al.sup.3+, Fe.sup.2+, Fe.sup.3+, Ca.sup.2+, Mg.sup.2+ and Zn.sup.2+ ;
- Y.sup.q- is selected from the group consisting of Cl.sub.-, SO.sub.4.sup.2-, PO.sub.4.sup.3- and CH.sub.3 COO.sup.- ;
- x is a number from 1 to 4 and pn=qm.
A liquid low-calorie sweetener composition comprising a metal complex of a dipeptide-sweetener represented by the formula ##STR5## wherein X.sup.p+ is selected from the group consisting of Al.sup.3+, Fe.sup.2+, Fe.sup.3+, Ca.sup.2+, Mg.sup.2+ and Zn.sup.2+ ;
- Y.sup.q- is selected from the group consisting of Cl.sup.-, SO.sub.4.sup.2-, PO.sub.4.sup.3- and CH.sub.3 COO.sup.- ;
- x is a number from 1 to 4 and pn=qm, dissolved in a consumable solvent or solvents in a concentration up to about 40% by weight of the composition to provide a high concentration liquid low-calorie sweetener.
Dependencies are inferred from the claim text.