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Official Journal of the Japan Wood Research Society

Table 8 Comparison of the effects of the thermal modification temperature using Duncan’s test on the total color difference ΔE*

From: Impact of thermal modification on color and chemical changes of spruce and oak wood

Temperature (°C)

(1) 0.00

(2) 11.30

(3) 21.15

(4) 45.02

(5) 0.00

(6) 12.52

(7) 20.99

(8) 37.21

1

Spruce

20

 

0.000

0.000

0.000

1.000

0.000

0.000

0.000

2

160

0.000

 

0.000

0.000

0.000

0.206

0.000

0.000

3

180

0.000

0.000

 

0.000

0.000

0.000

0.866

0.000

4

210

0.000

0.000

0.000

 

0.000

0.000

0.000

0.000

5

Oak

20

1.000

0.000

0.000

0.000

 

0.000

0.000

0.000

6

160

0.000

0.206

0.000

0.000

0.000

 

0.000

0.000

7

180

0.000

0.000

0.866

0.000

0.000

0.000

 

0.000

8

210

0.000

0.000

0.000

0.000

0.000

0.000

0.000