Integration of Pretreatment With Simultaneous Counter-Current Extraction of Energy Sorghum for High-Titer Mixed Sugar Production
作者： Daniel L. Williams , Rebecca G. Ong , John E. Mullet , David B. Hodge
关键词: Sugar 、 Bagasse 、 Biofuel 、 Extraction (chemistry) 、 Cellulosic ethanol 、 Chemistry 、 Xylose 、 Biomass 、 Sucrose 、 Pulp and paper industry
摘要: Sorghum (Sorghum bicolor L. Moench) offers substantial potential as a feedstock for the production of sugar-derived biofuels and biochemical products from cell wall polysaccharides (i.e., cellulose hemicelluloses) water-extractable sugars glucose, fructose, sucrose, starch). A number preprocessing schemes can be envisioned that involve processes such sugar extraction, pretreatment, densification could employed in decentralized, regional-scale biomass processing depots. In this work, an energy sorghum exhibiting combination high productivity accumulation was evaluated its integration into several schemes. This included counter-current extraction water-soluble followed by mild NaOH or liquid hot water pretreatment extracted bagasse. novel scheme investigated integrate with current diffuser-type systems extraction. approach, 8%) at metabolic yields without detoxification using Saccharomyces cerevisiae strain metabolically engineered evolved to ferment xylose.
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