Table 3 Effect of hydrogen peroxide–acetic acid pretreatment on 2-month-old and 3-year-old bamboo

0.0

100.0

0.51 ± 0.12

1.67 ± 0.20^b

29.19 ± 0.88^b

0.53 ± 0.14^b

0.88 ± 0.25^b

49.39 ± 0.67^b

82.16 ± 0.92^d

15.91 ± 0.88^d

2.47 ± 0.01

18.39 ± 0.87^d

0.5

87.3

0.18 ± 0.04

1.68 ± 0.02^b

25.05 ± 1.39^b

0.74 ± 0.11^b

0.17 ± 0.06^a

45.76 ± 0.90^a

73.55 ± 1.82^{b, c}

9.48 ± 0.40^c

2.26 ± 0.24

11.74 ± 0.22^c

1.0

79.9

0.48 ± 0.04

1.59 ± 0.10^b

25.97 ± 2.04^{a, b}

0.16 ± 0.04^a

0.24 ± 0.09^a

45.94 ± 1.11^a

74.38 ± 2.93^c

2.80 ± 0.35^b

2.55 ± 0.23

5.36 ± 0.54^b

1.5

75.3

0.47 ± 0.07

1.36 ± 0.20^{a, b}

19.95 ± 1.24^a

0.23 ± 0.05^a

0.23 ± 0.05^a

46.76 ± 0.85^a

69.67 ± 1.11^{a, b}

1.51 ± 0.26^a

2.18 ± 0.04

3.69 ± 0.30^a

2.0

74.1

0.23 ± 0.05

1.20 ± 0.09^a

19.73 ± 1.82^a

0.16 ± 0.04^a

0.32 ± 0.03^a

46.19 ± 1.21^a

67.84 ± 0.72^a

1.12 ± 0.01^a

2.64 ± 0.39

3.76 ± 0.39^a

0.0

100.0

0.24 ± 0.03

1.38 ± 0.29^b

27.35 ± 1.70^c

0.71 ± 0.36^b

0.24 ± 0.16

41.92 ± 0.76^b

71.85 ± 2.36^c

23.99 ± 0.19^c

1.90 ± 0.05^a

25.89 ± 0.14^d

0.5

80.6

0.31 ± 0.11

1.13 ± 0.07^{a, b}

21.28 ± 1.75^b

0.32 ± 0.02^{a, b}

0.24 ± 0.04

36.51 ± 1.37^{a, b}

59.80 ± 2.85^b

9.91 ± 1.13^b

2.42 ± 0.14^b

12.33 ± 1.01^c

1.0

67.6

0.21 ± 0.06

0.87 ± 0.06^a

17.50 ± 1.30^a

0.14 ± 0.03^a

0.14 ± 0.05

35.63 ± 2.49^{a, b}

54.49 ± 2.46^{a, b}

1.56 ± 0.11^a

2.23 ± 0.33^{a, b}

3.78 ± 0.27^b

1.5

60.7

0.30 ± 0.11

0.79 ± 0.08^a

16.76 ± 0.32^a

0.06 ± 0.01^a

0.07 ± 0.01

38.19 ± 3.73^{a, b}

56.16 ± 3.54^{a, b}

0.54 ± 0.08^a

1.94 ± 0.16^{a, b}

2.49 ± 0.19^a

2.0

60.0

0.24 ± 0.01

0.78 ± 0.06^a

15.96 ± 0.93^a

0.27 ± 0.02^a

0.18 ± 0.02

32.94 ± 2.04^a

50.36 ± 2.34^a

0.30 ± 0.07^a

1.84 ± 0.06^a

2.14 ± 0.04^a