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

Table 3 Weight-average (M _w), number-average (M _n) molecular weights, polydispersity (M _w /M _n), and monosaccharide compositions (wt%) of ethanol-precipitated fractions

Temp. (°C)	Time (min)	M _n (g mol⁻¹)	M _w (g mol⁻¹)	Glucose (%)	Xylose (%)	Galactose (%)	Arabinose (%)	Glucuronic acid (%)	Xylose/arabinose	Total sugars
120	90	3559	9338	11.60	47.99	4.02	4.52	0.51	10.62	68.64
120	120	1830	6529	10.88	48.23	3.72	4.50	0.76	10.72	68.09
140	30	3358	6414	9.84	55.32	3.22	4.63	0.18	11.95	73.19
140	60	2511	5707	9.75	56.09	2.00	3.03	0.21	18.51	71.08
140	90	2487	5157	8.54	57.56	1.86	2.14	0.22	26.90	70.32
140	120	1637	2690	8.53	50.53	0.83	2.00	0.36	25.27	62.25
160	0	2502	8601	17.14	52.55	5.48	6.50	0.20	8.08	81.88
160	30	2338	2519	13.21	34.50	1.57	1.38	0.22	25.00	50.88
180	0	5252	11,950	7.95	47.22	2.04	3.27	0.12	14.44	60.60
180	5	6571	9408	5.92	13.13	0.74	0.62	0.10	21.18	20.51
180	10	2920	5491	5.50	6.76	0.65	0.37	0.04	18.27	13.32