The transformations of cellulose after concentrated sulfuric acid treatment and its impact on the enzymatic saccharification

Table 4 Comparison of glucose yield of different cellulose samples

Avicel treated by different methods	CrI, %	Cellulose II content, %	Glucose yield^a, %
Ball milling	59.31 ± 1.01	0.00 ± 0.00	66.78 ± 0.35
Sulfuric acid	58.78 ± 2.14	96.55 ± 2.03	79.55 ± 0.87
Phosphoric acid	59.04 ± 1.96	100.00 ± 0.00	96.51 ± 0.73
Sodium hydroxide	58.52 ± 3.61	100.00 ± 0.00	91.97 ± 0.89

^aEnzymatic hydrolysis condition: 2% solids loading, cellulase enzyme loading of 5 FPU/g cellulose, 150 rpm at 50 °C

ISSN: 2731-3654