Title:
Experimental Design of Steam Explosion to Optimize Carbohydrate Recovery and Enzymatic Hydrolysis of Wheat Straw
Author(s):
Viola, E., Zimbardi, F., Valerio, V., Villone, A., Nanna, F.
Document(s):
Paper
Abstract:
A continuous steam explosion plant (300 kg/h) was utilized to pretreat wheat straw, the experimental design has been used to identify the best SE conditions (time and temperature) to maximize carbohydrates recovery and enzymatic hydrolysis, meanwhile keeping at low level the biomass degradation and inhibitors formation. The tested SE parameters have been: 200 < T (°C) < 220; 3 < t (min) < 6. The exploded wheat has been washed with hot water (65 °C) to separate the soluble fraction, containing hemicellulose, from the insoluble residue, containing cellulose and lignin. Both the fractions were analyzed to determine the carbohydrates content. Data of chemical analysis have been worked out to obtain numerical functions which have showed good correlation degree with the treatment parameters (R2 = 0.93÷0.99). The results of the SE optimization pointed out that the highest yield of glucose available by enzymatic hydrolysis can be achieved on wheat treated at 220 °C and 3 min. The highest recovery of hemicellulosic carbohydrate has been obtained at 200 °C and 3 min.
Keywords:
enzymatic hydrolysis, steam explosion, wheat straw
Topic:
Biomass Resources
Subtopic:
Biomass residues general
Event:
19th European Biomass Conference and Exhibition
Session:
OE4.1
Pages:
315 - 319
ISBN-13:
978-88-89407-55-4
ISBN-10:
88-89407-55-7
Paper DOI:
10.5071/19thEUBCE2011-OE4.1
Price:
FREE
