period

Natural

Natural ozone

Cleaned

Cleaned O

Moisture 1

8.26 ± 0.05A a

8.46 ± 0.00A a

11.06 ± 0.15A b

11.08 ± 0.27A b

Moisture 2

8.19 ± 0.04A a

8.36 ± 0.06A a

10.60 ± 0.06AB b

10.66 ± 0.05AB b

Moisture 3

8.16 ± 0.10A a

8.24 ± 0.10A a

10.16 ± 0.03B b

10.25 ± 0.13B b

L* value 1

41.58 ± 1.13B b

49.83 ± 1.47A a

43.49 ± 0.47B b

48.34 ± 1.71B a

L*value 2

49.16 ± 0.81A b

50.36 ± 0.86A b

56.65 ± 2.30A a

55.54 ± 0.45Aa

L *value 3

51.71 ± 1.29A b

50.65 ± 1.50A b

57.45 ± 1.31A a

56.55 ± 0.74A a

a* value 1

6.34 ± 0.15C a

5.98 ± 0.07B b

6.01 ± 0.02B b

6.03 ± 0.06B b

a* value 2

7.84 ± 0.29A a

7.99 ± 0.68A a

7.06 ± 0.06A a

7.31 ± 0.45AB a

a* value 3

7.22 ± 0.05B a

7.18 ± 0.54AB a

6.55 ± 0.51AB a

6.82 ± 0.09A a

b* value 1

11.96 ± 0.46B b

15.76 ± 0.80B a

12.99 ± 0.07B b

15.05 ± 0.39B a

b* value 2

20.04 ± 0.02A c

20.99 ± 0.39A b

24.46 ± 0.10A a

24.58 ± 0.11A a

b* value 3

20.26 ± 1.34A b

20.44 ± 0.78A b

24.54 ± 0.88A a

23.90 ± 0.95A a

% Ash (in dry material) 1

1.51 ± 0.00A a

1.52 ± 0.00A a

1.62 ± 0.00A a

1.61 ± 0.00A a

ASH 2

1.51 ± 0.01A a

1.52 ± 0.00A a

1.63 ± 0.00A a

1.60 ± 0.02A a

ASH 3

1.50 ± 0.03A a

1.52 ± 0.00A a

1.64 ± 0.01A a

1.62 ± 0.01A a