Functional relationship of furfural yields and the hemicellulose-derived sugars in the hydrolysates from corncob by microwave-assisted hydrothermal pretreatment

Table 2 Composition of solid residues (weight percentage, wt%) after the microwave-assisted hydrothermal pretreatment

Temp. (^oC)	Time (min)	Glucose (wt%)	Xylose (wt%)	Arabinose (wt%)	Acid-insoluble fraction (wt%)
Raw material		37.09	31.39	2.28	14.47
120	0	38.07	30.91	2.26	16.47
120	30	38.54	30.77	2.24	16.77
120	60	38.75	30.76	2.22	18.19
120	90	38.87	30.44	1.97	19.38
120	120	39.34	28.79	1.75	20.27
140	0	38.36	29.60	2.22	17.01
140	30	43.91	28.27	1.60	18.34
140	60	51.92	21.91	1.07	19.02
140	90	54.78	18.00	0.75	19.65
140	120	57.25	15.56	0.62	21.44
160	0	41.58	29.07	1.82	17.29
160	30	63.17	13.19	0.57	18.79
160	60	69.82	7.14	0.00	19.72
160	90	70.49	5.35	0.00	20.48
160	120	28.13	1.61	0.00	60.24
180	0	61.57	14.81	0.00	18.60
180	5	62.55	10.76	0.00	19.22
180	10	68.72	6.97	0.00	19.34
180	15	77.40	4.47	0.00	19.51
180	30	50.83	3.14	0.00	39.31

Reaction conditions: 2.0 g of corncob in 20 mL of DI water was subjected to microwave heating (600 W)