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Official Journal of the Japan Wood Research Society

Table 1 The effects of wood part and storage place on the average value of acetaldehyde (μg) in the air of syringe at 30°C for 24 h after setting

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

  1. a n = 3
  2. bThe value below the determination limit