Ethanol Production from Oil Palm Trunk: A Combined Strategy Using an Effective Pretreatment and Simultaneous Saccharification and Cofermentation

Table 7

Effect of alkaline peroxide and heat treatment on reducing sugar.

Treatment	Lignin (% w/w)	Reducing sugar (% w/v)	Increasing of reducing sugar (%)
Before delignification	17.73	0.36	93.22
After delignification	3.39	5.31

Hydrolysis of 5% (b/v) substrate, with 10 ml working volume using cellulose (Cellic Ctec2) 31.65 FPU/ml enzyme, pH buffer 5, at 50°C for 72 h.