Table 1.
Air-cured leaf tobacco (n = 3) |
Air-cured twist tobacco (n = 3) |
Fire-cured leaf tobacco (n = 3) |
Fire-cured twist tobacco (n = 6) |
|
---|---|---|---|---|
Nicotine (mg/g) | 38.0 (0.4) | 38.5 (8.8) | 42.7 (5.6) | 35.0 (3.2) |
Nicotine (mg) per | 9.9 (0.1) | 10.0 (2.3) | 11.1 (1.5) | 9.1 (0.8) |
pH 0.26 g serving | 11.0 | 11.0 | 11.0 | 11.0 |
Percent free base nicotine (%) | 99.9 | 99.9 | 99.9 | 99.9 |
Unionized nicotine (mg) per 0.26 g serving | 9.9 (0.1) | 10.0 (2.3) | 11.1 (1.5) | 9.1 (0.8) |
Unionized nicotine (mg/g) | 38.0 (0.4) | 38.5 (8.8) | 42.7 (5.6) | 35.0 (3.2) |
Note. Standard deviations are given within parentheses. U.S. moist stuff averages (for comparison): nicotine = 11.9 mg/g; nicotine per 1.2 g serving = 14.3 mg; pH = 7.6; percent free base nicotine = 31.6%; unionized nicotine per 1.2 g serving = 4.5 mg; unionized nicotine = 3.8 mg/g.
The value for pH is based on a mixture of the various tobaccos with punk ash. Values for U.S. moist snuff (n = 39) are included for comparison.