Official Journal of the Japan Wood Research Society
From: Acetaldehyde emission from wood induced by the addition of ethanol
Sample | Part | ID | Acetaldehyde (μg)a | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Control | Ethanol addition | ||||||||||
Chamber Avg | Room Avg | Outside Avg | Chamber | Room | Outside | ||||||
Avg | SD | Avg | SD | Avg | SD | ||||||
Blank | – | – | <0.1b | <0.1 | <0.1 | <0.1 | – | <0.1 | – | <0.1 | – |
Filter paper | – | – | <0.1 | <0.1 | <0.1 | 0.1 | 0.0 | 0.1 | 0.1 | <0.1 | – |
Japanese cedar | Sapwood | A | <0.1 | <0.1 | <0.1 | 21.6 | 18.0 | 34.2 | 23.0 | 15.7 | 9.2 |
B | <0.1 | <0.1 | <0.1 | 16.9 | 3.3 | 10.5 | 4.3 | 14.9 | 2.6 | ||
Transition zone | A | <0.1 | <0.1 | <0.1 | 79.8 | 68.7 | 109.2 | 123.9 | 201.6 | 156.4 | |
B | <0.1 | <0.1 | <0.1 | 103.5 | 74.0 | 61.7 | 5.9 | 121.9 | 129.2 | ||
Heartwood | A | <0.1 | <0.1 | <0.1 | 435.2 | 5.6 | 438.4 | 15.9 | 429.9 | 15.2 | |
B | <0.1 | <0.1 | <0.1 | 324.2 | 8.4 | 367.0 | 6.7 | 405.9 | 25.1 | ||
Japanese cypress | Sapwood | C | <0.1 | <0.1 | <0.1 | 21.4 | 4.9 | 62.4 | 57.1 | 48.4 | 11.5 |
D | <0.1 | <0.1 | <0.1 | 142.5 | 118.3 | 234.1 | 119.8 | 98.2 | 50.8 | ||
Heartwood | C | <0.1 | <0.1 | <0.1 | 225.2 | 13.2 | 238.6 | 21.7 | 315.4 | 27.8 | |
D | <0.1 | <0.1 | <0.1 | 193.3 | 21.5 | 227.7 | 22.0 | 238.4 | 21.5 |