Table 1. Chemical content of four wood species and rice bran

Chemical components	Wood species				Rice bran
	W1	W2	W3	W4
Hot-water extractives (%)	11.5 ± 0.3c	6.6 ± 0.1a	9.3 ± 0.6b	11.2 ± 0.7c	12.1 ± 0.5
Ethanol–toluene extractives (%)	4.8 ± 0.1a	4.2 ± 0.1a	10.0 ± 0.3c	6.4 ± 0.3b	5.8 ± 0.2
Holocellulose (%)	68.3 ± 0.1a	68.1 ± 0.2a	70.0 ± 0.2b	68.8 ± 0.2ab	75.3 ± 0.2
α-Cellulose (%)	37.5 ± 0.2b	36.3 ± 0.3a	44.3 ± 0.3d	40.6 ± 0.3c	37.9 ± 0.1
Hemicellulose (%)	30.8 ± 0.3c	31.9 ± 0.2d	25.7 ± 0.1a	28.2 ± 0.1b	37.3 ± 0.2
Klason-lignin (%)	18.7 ± 0.2a	27.1 ± 0.5d	24.2 ± 0.2b	26.0 ± 0.2c	38.4 ± 0.2
Acid soluble lignin (%)	0.3 ± 0.2	0.2 ± 0.2	0.1 ± 0.0	0.4 ± 0.2	0.3 ± 0.1
Ash (%)	10.7 ± 0.0b	13.7 ± 0.2d	11.8 ± 0.4c	9.6 ± 0.2a	21.8 ± 0.0
pH	5.5 ± 0.03a	7.5 ± 0.04c	6.4 ± 0.02b	7.5 ± 0.02c	-

The results are expressed as mean ± SD of triplicate measurements.
Means with different letters in the same row are significantly different (p <0.05).
W1: mango, W2: mahogany, W3: black rosewood, W4: jackfruit.