Fig. 1. Composition analysis of rapeseed straw after irradiation treatment: (a) contents of cellulose, xylan, and lignin; (b) total amount of water soluble components; (c) contents of glucose and xylose in water soluble fraction; (d) contents of glucan and xylan in water soluble fraction

Fig. 2. Analysis of enzymatic hydrolysis and fermentation inhibitors of rapeseed straw after irradiation treatment: (a) pH analysis of water extracts; (b) contents of aromatic inhibitors in water soluble fractions; (c) total contents of fatty acid and aromatic inhibitors; (d) contents of fatty acid inhibitors in water soluble fraction

Fig. 3. Enzymatic hydrolysis of rapeseed straw pretreated with irradiation at different absorbed doses: (a) conversion rate of cellulose; (b) concentration of glucose

Fig. 4. Separate hydrolysis and fermentation of 800 kGy irradiated rapeseed straw: (a) cellulose conversion rate of enzymatic hydrolysis; (b) glucose concentration of enzymatic hydrolysis; (c) ethanol conversion rate of fermentation; (d) glucose concentration of fermentation

Fig. 5. Separate hydrolysis and fermentation of 800 kGy irradiated rapeseed straw after water extraction treatment: (a) cellulose conversion rate of enzymatic hydrolysis; (b) glucose concentration of enzymatic hydrolysis; (c) ethanol conversion rate of fermentation; (d) glucose concentration of fermentation