Table 3.
Experimental results for the total phenolic content, DPPH free radical scavenging activity and antimicrobial according to the Box-Behnken design

Run Y1, Total phenolic content (mg GAE/g dry steam exploded oak wood) Y2, DPPH free radical scavenging activity (%) Y2, Antimicrobial activity (mm)
Actual Predicted Actual Predicted Actual Predicted
1 100.5 101.0 59.3 57.8 12.0 12.4
2 108.4 109.0 66.4 61.9 15.5 15.9
3 96.3 101.1 58.8 54.9 14.5 14.6
4 107.4 103.5 57.2 56.0 13.5 13.4
5 108.1 109.1 65.5 61.9 15.5 15.9
6 100.2 101.1 58.0 58.3 15.5 15.0
7 105.0 100.3 59.1 59.1 14.5 14.4
8 104.2 103.0 51.6 52.4 14.0 14.1
9 99.3 101.0 57.9 58.9 12.0 11.6
10 98.9 95.4 53.0 51.5 15.0 14.8
11 110.0 106.1 51.3 15.5 14.0 13.4
12 103.1 107.1 58.5 57.7 14.0 14.5
13 110.4 109.1 58.3 61.9 17.0 15.9
14 111.5 109.1 59.2 61.9 16.0 15.9
15 98.8 102.8 53.8 53.2 12.5 13.1
16 94.3 97.9 53.0 54.0 14.5 14.8
17 111.2 109.1 60.9 61.9 15.5 15.9