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1. (WO2007011965) AROMA COMPOSITION AND METHOD
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CLAIMS

What is claimed is:

1. An aroma composition comprising:

a first component selected from the group consisting of 4-hydroxy- 2,5-dimethyl-3(2H)furanone, 3-hydroxy-2-methyl-4H-pyran-4~ one, 2-ethyl-4-hydroxy-5-methyl-3(2H)furanone, 4-hydroxy-5- methyl-3(2H)furanone, a sulfur-containing analogue of any of the foregoing, and any combination thereof;

a second component selected from the group consisting of 2- furanmethanethiol, 2-methyl-3-furanthiol, 5-methyl-2- furanmethanthiol, and any combination thereof; and,

a third component selected from the group consisting of 2-(l- mercaptoethyl)furan, 2-furanethanethiol, bis-(2-furfuryl) disulfide, a furanthiol disulfide, and any combination, thereof.

2. The aroma composition of claim 1, wherein said first component comprises 4-hydroxy-2,5-dimethyl-3(2H)furanone, said second component comprises 2-furanmethanethiol, and said third component comprises 2-(l-mercaptoethyl)furan.

3. The aroma composition of claim 2, wherein the ratio of 2-(l- mercaptoethyl)furan:2-furanmethanethiol:4-hydroxy-2,5-dimethyl- 3(2H)furanone is x:y:z where x ranges from about 13 to about 17, y ranges from about 22 to about 26, and z ranges from about 400 to about 600.

4. The aroma composition of claim 2, wherein the ratio of 2-(l- mercaptoethyl)furan:2-furanmethanethiol:4-hydroxy-2,5-dimethyl- 3(2H)furanone is x:y:z where x is about 15, y is about 24, and z is about 450.

5. The aroma composition of claim 2, wherein the composition comprises a 1:1 wateπoil mixture and the 4-hydroxy-2,5-dimethyl- 3(2H)furanone ranges from 40 ppb to 120 ppm, the 2- furanmethanethiol ranges from 1 ppb to 1200 ppb and the 2-(l- mercaptoethyl)furan ranges from 1 ppb to 900 ppb.

6. The aroma composition of claim 1, further comprising at least one organic amine.

7. The aroma composition of claim 6, wherein the composition comprises a 1:1 water:oil mixture, wherein the organic amine is trimethylamine, and wherein the trimethylamine ranges from about 5 ppb to about 5000 ppb.

8. The aroma composition of claim 6, wherein the ratio of 2-(l- mercaptoethyl)furan:2-furanmethanethiol:4-hydroxy-2,5-dimethyl- 3 (2H)furanone: organic amine is x:y:z:a where x ranges from about 13 to about 17, y ranges from about 22 to about 26, z ranges from about 400 to about 600, and a ranges from about 50 to about 400.

9. The aroma composition of claim 1, further comprising a compound selected from the group consisting of hexenol, l,5-octadien-3-one, 3-(methylthio)ρropionaldehyde, 2,3-diethyl-5-methylpyrazine, (E)- 2-nonenal, (E,Z)-2,6-nonadienal, butanoic acid, 2 or 3-methyl butanoic acid, 2-methyl-3-(methyldithio)furan, dimethyltetrasulfide, dimethyltrisulfide, 4-hydroxy-2-ethyl-5- methyl-3-(2H)furanone, m-cresol, 3-hydroxy-4,5-dimethyl-2- (5H)furanone, and any combination thereof.

10. The aroma composition of claim 1, wherein said aroma composition has a tuna flavor.

11. A method of flavoring a product comprising the step of:

admixing said product with an aroma composition wherein said aroma composition comprises:

a first component selected from the group consisting of 4-hydroxy- 2,5-dimethyl-3(2H)furanone, 3-hydroxy-2-methyl-4H-pyran-4- one, 2-ethyl-4-hydroxy-5-methyl-3(2H)furanone, 4-hydroxy-5- methyl-3(2H)furanone, a sulfur-containing analogue of any of the foregoing, and any combination, thereof;

a second component selected from the group consisting of 2- furanmethanethiol, 2-methyl-3-furanthiol, 5-methyl-2- furanmethanthiol, and any combination, thereof; and,

a third component selected from the group consisting of 2-(l- mercaptoethyl)furan, 2-furanethanethiol, bis-(2-furfuryl)disulfide, a furanthiol disulfide, and any combination, thereof.

12. The method of claim 11, wherein said first component comprises 4-hydroxy-2,5-dimethyl-3(2H)furanone, said second component comprises 2-furanmethanethiol, and said third component comprises 2-(l-mercaptoethyl)furan.

13. The method of claim 12, wherein said aroma composition has a ratio of 2-(l-mercaptoethyl)furan:2-furanmethanethiol:4-hydroxy- 2,5-dimethyl-3(2H)furanone is x:y:z where x ranges from about 13 to about 17, y ranges from about 22 to about 26, and z ranges from about 400 to about 600.

14. The method of claim 12, wherein the 4-hydroxy-2,5-dimethyl- 3(2H)furanone ranges from 40 ppb to 120 ppm, the 2- furanmethanethiol ranges from 1 ppb to 1200 ppb and the 2-(l- mercaptoethyl)furan ranges from 1 ppb to 1200 ppb.

15. The method of claim 11, wherein said aroma composition further comprises a compound selected from the group consisting of hexenol, l,5-octadien-3-one, 3-(methylthio)propionaldehyde, 2,3- diethyl-5-methyl pyrazine, (E)-2-nonenal, (E5Z)- 2,6-nonadienal, butanoic acid, 2 or 3-methylbutanoic acid, 2-methyl-3- (methyldithio)furan, dimethyltrisulfide, dimethyltetrasulfide, 4- hydroxy-2-ethyl-5-methyl-3-(2H)furanone, m-cresol, 3-hydroxy- 4,5-dimethyl-2-(5H)furanone, and any combination thereof.

16. The method of claim 11, further comprising at least one organic amine.

17. The method of claim 16, wherein the ratio of 2-(l- mercaptoethyl)furan: 2-furanmethanethiol : 4-hydroxy-2, 5 -dimethyl- 3 (2H)furanone: organic amine is x:y:z:a where x ranges from about 13 to about 17, y ranges from about 22 to about 26, z ranges from about 400 to about 600, and a ranges from about 50 to about 400.

18. The method of claim 11 , wherein said product is a food product.

19. The method of claim 18, wherein said food product is a pet food product.

20. The method of claim 18, wherein said food product has a protein content of at least about 15 % by weight, a carbohydrate content range of about 30 wt% to about 70 wt%, a fat content of greater than about 3.0 wt%, a crude fiber content range of about 0 wt% to about 10 wt%.

21. An aroma-modified product comprising:

a base and a aroma composition where said aroma composition comprises:

a first component selected from the group consisting of 4-hydroxy- 2,5-dimethyl-3(2H)furanone, 3-hydroxy-2-methyl-4H-pyran-4- one, 2-ethyl-4-hydroxy-5-methyl-3(2H)furanone, 4-hydroxy-5- methyl-3(2H)furanone, a sulfur-containing analogue of any of the foregoing, and any combination, thereof;

a second component selected from the group consisting of 2- furanmethanethiol, 2-methyl-3-furanthiol, 5-methyl-2- furanmethanthiol, and any combination, thereof; and,

a third component selected from the group consisting of 2-(l- mercaptoethyl)furan, 2-furanethanethiol, bis-(2-furfuryl) disulfide, a furanthiol disulfide, and any combination, thereof.

22. The aroma-modified product of claim 21, wherein said base is a food.

23. The aroma-modified product of claim 22, wherein said food is a pet food.