Aspen Bibliography
Comparison of Aspen Wood Hydrolysates Produced by Pretreatment With Liquid Hot Water and Carbonic Acid
Document Type
Article
Journal/Book Title/Conference
Applied-Biochemistry-and-Biotechnology
Volume
98-100
First Page
109
Last Page
121
Publication Date
2002
Abstract
Hydrolysates produced by the pretreatment of aspen wood with liquid hot water were compared with hydrolysates produced using carbonic acid pretreatment. Pretreatment temperatures tested ranged from 180° to 220°C; reaction times were varied between 2.5 and 30.5 min. Under most conditions tested, it was found that the presence of carbonic acid had no discernible effect on the amount of xylose released or concentration of furan compounds, as indicated by ultraviolet-visual absorbance between 270 and 280 nm. Thus, there appears to be little difference in the severity of the pretreatment conditions with or without the presence of carbonic acid. The presence of carbonic acid did, however, result in a hydrolysate with a higher final pH. It is hypothesized that the presence of the carbonic acid during the reaction may have the effect of reducing the accumulation of organic acids in the hydrolysate.
Recommended Citation
McWilliams, R.C., van Walsum, G.P. Comparison of aspen wood hydrolysates produced by pretreatment with liquid hot water and carbonic acid. Appl Biochem Biotechnol 98, 109–121 (2002). https://doi.org/10.1385/ABAB:98-100:1-9:109