Evaluation of OxiOrganosolv pretreated hardwood and softwood lignocelluloses as substrates for the chemoenzymatic production of 5-hydroxymethylfurfural (HMF)

Table 1 Description of pretreatment conditions, enzymatic digestibility of obtained pulps after treatment with Cellic® CTec2, and glucose isomerization to fructose yields with Sweetzyme® of OxiOrganosolv pretreated beechwood samples. All experiments were run in duplicates and numbers represent the mean values

Catalyst	Organic solvent	Pretreatment conditions	% cellulose content in pulp	% cellulose conversion to glucose	% glucose conversion to fructose
No catalyst	iBuOH	150 ℃, 60 min	65.87^a	69.12 ± 0.86	73.51 ± 0.42
		150 ℃, 120 min	65.87^b	62.78 ± 0	73.6 ± 0.1
		160 ℃, 60 min	68.16^b	66.67 ± 3.14	70.7 ± 3.0
		160 ℃, 120 min	87.75^b	73.39 ± 0	79.5 ± 0.2
		175 ℃, 60 min	87.42^b	68.20 ± 1.47	79.8 ± 0.3
		175 ℃, 120 min	92.6^b	70.07 ± 0.56	84.6 ± 1.2
	ACO	150 ℃, 60 min	62.74^c	57.69 ± 2.39	78.04 ± 5.32
	EtOH	150 ℃, 60 min	56.72^c	57.72 ± 0.29	78.11 ± 2.11
	THF	150 ℃, 60 min	73.09^c	79.02 ± 1.70	74.17 ± 0.01
HPMo	iBuOH	150 ℃, 60 min	93.3^a	48.79 ± 2.44	64.71 ± 2.59
	ACO	150 ℃, 60 min	89.13^a	55.53 ± 1.27	60.41 ± 2.36
	EtOH	150 ℃, 60 min	86.63^a	56.95 ± 0.44	64.75 ± 0
	THF	150 ℃, 60 min	90.39^a	49.11 ± 2.37	61.46 ± 6.59
Fe-PMo	iBuOH	150 ℃, 60 min	78.48^a	53.06 ± 0.67	74.66 ± 1.8
	ACO	150 ℃, 60 min	81.96^a	58.22 ± 0.8	77.17 ± 1.15
	EtOH	150 ℃, 60 min	77.74^a	56.90 ± 1.86	77.9 ± 0.72
Cu-PMo	iBuOH	150 ℃, 60 min	86.58^a	53.43 ± 2.12	74.72 ± 1.07
	ACO	150 ℃, 60 min	83.3^a	41.04 ± 3.94	68.53 ± 2.34
	EtOH	150 ℃, 60 min	89.9^a	46.95 ± 1.46	68.98 ± 0.51

ISSN: 2948-2356