Effect of Dissolved Carbon Dioxide on Accumulation of Organic Acids in Liquid Hot Water Pretreated Biomass Hydrolyzates

• DOI: 10.1007/978-1-60327-181-3_27
• Publication Date: 2009-12-21T10:20:59Z
• Authors: G. Peter Van Walsum; Maurilio Garcia-Gil; Shou-Feng Chen; Kevin Chambliss
• Keywords: Carbonic acid; Carbon fibers

Liquid hot water pretreatment has been proposed as a possible means of improving rates enzymatic hydrolysis biomass while maintaining low levels inhibitory compounds. Supplementation liquid with dissolved carbon dioxide, yielding carbonic acid, shown to improve some substrates compared the use alone. Previous studies on application acid have noted higher pH hydrolyzates treated samples prepared This study applied recently developed analytical methods quantify concentration organic acids in pretreated hydrolyzates, and without addition acid. It was observed that dioxide significantly changed accumulated concentrations most measured However, differences product resulting from did not account for hydrolyzate pH.