Improved ethanol yield and reduced Minimum Ethanol Selling Price (MESP) by modifying low severity dilute acid pretreatment with deacetylation and mechanical refining: 1) Experimental

Table 2 Xylan mass closure of pretreatment at 150°C, 8 mg H ₂ SO ₄ per g of O.D. corn stover for 20 min

	Corn stover type	Xylan conversion during steam gun pretreatment
		Monomer (%)	Oligomer (%)	Xylose degraded into furfural (%)	Xylan in solids (%)	Mass closure (%)
Control	34 M95	62	21	2	18	103
	33B51	53	23	2	24	102
Deacetylated	34 M95	73	10	2	17	102
	33B51	70	7	2	21	100

ISSN: 2731-3654