| 摘要 |
NZ 598953 Disclosed is a process for treating a tobacco material comprising: extracting a tobacco material with a solvent to produce a tobacco extract and a tobacco residue, wherein the tobacco extract comprises at least one nitrite compound; contacting the tobacco extract with an antioxidant, to produce a mixture having a reduced content of the at least one nitrite compound; and contacting the mixture with an antioxidant scavenger, thereby removing the antioxidant therein to produce a treated tobacco extract. |
