Author(s): Zhang B, Wang L, Shahbazi A, Diallo O, Whitmore A
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Abstract The use of aquatic plant cattails to produce biofuel will add value to land and reduce emissions of greenhouse gases by replacing petroleum products. Dilute-sulfuric acid pretreatment of cattails was studied using a Dionex accelerated solvent extractor (ASE) varying acid concentration (0.1-1\%), treatment temperature (140-180 °C), and residence time (5-10 min). The highest total glucose yield for both the pretreatment and enzyme hydrolysis stages (97.1\% of the cellulose) was reached at a temperature of 180 °C, a sulfuric acid concentration of 0.5\%, and a time of 5 min. Cattails pretreated with 0.5\% sulfuric acid are digestible with similar results at enzyme loadings above 15 FPU/g glucan. Glucose from cattails cellulose can be efficiently fermented to ethanol with an approximately 90\% of the theoretical yield. The results in this study indicate that cattails are a promising source of feedstock for advanced renewable fuel production. Copyright © 2011 Elsevier Ltd. All rights reserved.
This article was published in Bioresour Technol
and referenced in Journal of Petroleum & Environmental Biotechnology