Method for producing flavorful and aromatic compounds from tobacco
First Claim
1. A method of producing flavorful and aromatic compounds from tobacco, comprising:
- providing an aqueous tobacco composition comprising water and a tobacco material;
adding an amount of a nitrogen-free base to the aqueous composition sufficient to increase the pH of the aqueous composition to at least about 6; and
heating the aqueous composition for a time and under conditions sufficient to produce flavorful and aromatic compounds.
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Accused Products
Abstract
The invention provides a method of producing flavorful and aromatic compounds from tobacco by (1) adjusting the pH of an aqueous composition comprising water and a tobacco material to at least about 6 using a nitrogen-free base, such as an alkali metal hydroxide; and (2) heating the pH-adjusted aqueous composition for a time and under conditions sufficient to produce flavorful and aromatic compounds, such as pyrazines. A reducing sugar can be added to the aqueous tobacco composition to further increase the amount of flavorful and aromatic compounds produced. The tobacco material in the aqueous tobacco composition may comprise solid tobacco particles or an aqueous tobacco extract in either liquid form or in the form of spray-dried particles. The treated aqueous composition can be applied to a smokable material during the manufacture of a smoking article, such as a cigarette.
67 Citations
39 Claims
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1. A method of producing flavorful and aromatic compounds from tobacco, comprising:
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providing an aqueous tobacco composition comprising water and a tobacco material;
adding an amount of a nitrogen-free base to the aqueous composition sufficient to increase the pH of the aqueous composition to at least about 6; and
heating the aqueous composition for a time and under conditions sufficient to produce flavorful and aromatic compounds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method of producing flavorful and aromatic compounds from tobacco, comprising:
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providing an aqueous tobacco composition comprising water and a tobacco material, the tobacco material comprising solid pieces of whole tobacco or at least one aqueous tobacco extract;
adding an amount of a nitrogen-free base to the aqueous composition sufficient to increase the pH of the aqueous composition to at least about 9; and
heating the aqueous composition at a temperature of about 80°
C. to about 150°
C. for a time sufficient to produce flavorful and aromatic compounds. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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36. A method of producing flavorful and aromatic compounds from tobacco, comprising:
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providing an aqueous tobacco composition comprising water, at least one reducing sugar, and a tobacco material, the tobacco material comprising solid pieces of whole tobacco or at least one aqueous tobacco extract;
adding an amount of a nitrogen-free base to the aqueous composition sufficient to increase the pH of the aqueous composition to at least about 9, the nitrogen-free base being a hydroxide of an alkali metal or an alkaline-earth metal; and
heating the aqueous composition for a time and under conditions sufficient to produce flavorful and aromatic compounds. - View Dependent Claims (37, 38, 39)
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Specification