Enhanced Ethanol and Biogas Production from Pinewood by NMMO Pretreatment and Detailed Biomass Analysis

Figure 1

Effects of different pretreatment time and wood size on the hydrolysis yield (the yield of enzymatic hydrolysis was calculated as (g) glucose after hydrolysis/(g) glucan in the untreated or pretreated sample/1.111∗100) of pinewood powder (a) and chips (b). The symbols correspond to 1 h (●), 3 h (◆), and 15 h (■) pretreatment, and (▲) corresponds to for the untreated wood.

(a)

(b)