期刊
BIORESOURCE TECHNOLOGY
卷 134, 期 -, 页码 257-263出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.02.002
关键词
Macroalgae; Fermentation; Enzymatic hydrolysis; Biofuel
This study evaluated the potential of Kappaphycus alvarezii as feedstock for ethanol production, i.e. ethanol 3G. First, aquatic biomass was subjected to a diluted acid pretreatment. This acid pretreatment generated two streams - a galactose-containing liquid fraction and a cellulose-containing solid fraction, which were investigated to determine their fermentability with the following strategies: a single-stream process (simultaneous saccharification and co-fermentation (SSCF) of both fractions altogether), which achieved 64.3 g L-1 of ethanol, and a two-stream process (fractions were fermented separately), which resulted in 38 g L-1 of ethanol from the liquid fraction and 53.0 g L-1 from the simultaneous saccharification and fermentation (SSF) of the solid fraction. Based on the average fermentable carbohydrate concentration, it was possible to obtain 105 L of ethanol per ton of dry seaweed. These preliminaries results indicate that the use of the macro-algae K. alvarezii has a good potential feedstock for bioethanol production. (C) 2013 Published by Elsevier Ltd.
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