Understanding the promoting effect of non-catalytic protein on enzymatic hydrolysis efficiency of lignocelluloses

Bioresources and Bioprocessing

Table 1 The contents and removal of main components in solid substrates pretreated by DA and PSA pretreatments

Substrates^a	Temp. (°C)	Time (min)	Organic solvent charge (%)	Sulfuric acid charge (%)	Solid substrate yield (%)	Components content/removal (%)^b
Substrates^a	Temp. (°C)	Time (min)	Organic solvent charge (%)	Sulfuric acid charge (%)	Solid substrate yield (%)	Glucan	Xylan	Lignin
Un-Ba						40.2	23.7	26.8
DA-Ba	175	30	NA	2	83.5	45.9/4.7	18.7/34.1	28.6/10.9
PSA-Ba	95	30	80	NA	43.6	83.4/9.6	6.9/87.3	5.7/90.7
ET-Ba	140	20	80	4	66.4	58.5/3.4	18.1/49.2	21.5/46.7
PTL-Ba	130	20	80	4	43.3	84.2/9.3	4.7/91.4	6.9/88.9
Un-Eu						45.2	21.5	21.9
PSA-Eu	95	30	80	NA	45.4	85.6/14.0	6.4/93.6	6.6/86.3

^aUn-Ba and Un-Eu represent untreated bamboo and eucalyptus particles; PSA-Ba, ET-Ba, DA-Ba, PTL-Ba, PSA-Eu are the abbreviations of phenylsulfonic acid (PSA), ethanol (ET), dilute acid (DA) and n-pentanol (PTL) pretreated bamboo (Ba), and phenylsulfonic acid (PSA) pretreated eucalyptus (Eu) substrates, respectively
^bThe data before slashes are the contents of the components in raw materials (o.d.) and pretreated substrates (o.d.), while the data after slashes refer to the removal (Eq. (1)) of specific component