Table 2.

The effect of NaCS concentration, pretreatment time, and pressure on biomass composition after microwave-assisted hydrotropic pretreatment of maize distillery stillage

Pretreatment pressure (PSI)	Pretreatment time (min)	NaCS concentration (%)	Biomass component (% of dry weight)			NaCS concentration (%)	Biomass component (% of dry weight)			NaCS concentration (%)	Biomass component (% of dry weight)
			Cellulose	Hemicellulose	Lignin		Cellulose	Hemicellulose	Lignin		Cellulose	Hemicellulose	Lignin
39	10	0	36.81 ± 0.79	14.63 ± 0.49	18.27 ± 0.47	10	39.48 ± 0.73	2.64 ± 0.96	25.81 ± 0.06	20	50.52 ± 0.45	2.44 ± 0.33	18.53 ± 1.27
39	20	0	35.05 ± 0.32	13.04 ± 0.42	21.97 ± 0.84	10	42.76 ± 0.45	7.93 ± 1.24	21.56 ± 1.90	20	51.57 ± 0.28	6.59 ± 0.24	18.16 ± 0.15
39	30	0	34.33 ± 1.45	10.50 ± 0.76	24.07 ± 1.59	10	42.02 ± 0.56	7.07 ± 1.77	20.41 ± 0.20	20	53.36 ± 1.41	5.60 ± 0.18	16.49 ± 1.31
78	10	0	38.36 ± 0.24	12.51 ± 0.01	19.15 ± 0.33	10	38.49 ± 0.58	5.90 ± 0.31	24.24 ± 0.47	20	49.65 ± 0.06	3.07 ± 0.05	18.57 ± 0.79
78	20	0	35.38 ± 0.79	10.43 ± 0.79	24.95 ± 0.32	10	40.89 ± 0.16	6.42 ± 0.11	21.10 ± 0.26	20	51.26 ± 0.00	4.39 ± 0.21	18.52 ± 0.11
78	30	0	38.26 ± 0.91	4.48 ± 1.04	25.85 ± 0.72	10	42.47 ± 0.05	7.02 ± 0.60	20.67 ± 0.15	20	54.95 ± 0.65	3.08 ± 0.01	16.97 ± 0.74
117	10	0	38.29 ± 0.98	8.27 ± 0.47	20.74 ± 0.75	10	42.02 ± 2.02	6.28 ± 0.18	21.82 ± 0.48	20	48.54 ± 0.01	5.18 ± 0.05	18.01 ± 0.23
117	20	0	38.01 ± 0.94	7.45 ± 0.41	23.72 ± 0.47	10	42.52 ± 0.37	2.37 ± 0.74	20.68 ± 0.16	20	55.24 ± 0.11	1.23 ± 0.34	17.10 ± 0.06
117	30	0	38.10 ± 0.61	6.24 ± 0.56	26.48 ± 0.22	10	46.78 ± 0.60	1.87 ± 0.61	20.26 ± 0.06	20	56.70 ± 0.26	2.55 ± 0.99	14.97 ± 0.32