Microwave-assisted hydrotropic pretreatment as a new and highly efficient way to cellulosic ethanol production from maize distillery stillage
نویسندگان
چکیده
Abstract Aim of the study was to assess suitability combined use microwave radiation and sodium cumene sulfonate under optimized process conditions for preparation maize stillage biomass as a raw material production cellulosic ethanol. The key parameter guaranteeing high level lignin removal from (ca. 44%) concentration hydrotrope. Even at (16% w/v) cellulase enzyme dose about 4 filter-paper units/g, subjected microwave-assisted hydrotropic pretreatment highly susceptible enzymatic degradation, which resulted in 80% hydrolysis yield. It is possible obtain fermentation medium with very glucose (up 80 g/L), without inhibitors and, consequence, reach sugar conversion ethanol (concentration above 40 even much 95% theoretical Microwave treatment effective way prepare waste degradation lignocellulose structure by simultaneous microwaves hydrotropes ensured degree structural polysaccharides bioethanol. method provides cellulose, leading content released sugars suitable bioconversion, line assumptions second-generation technology. Key points • Microwave-assisted new production. delignification removes 44% biomass. No are obtained after pretreatment. High (above g/L) yield (95% yield)
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ژورنال
عنوان ژورنال: Applied Microbiology and Biotechnology
سال: 2021
ISSN: ['1432-0614', '0175-7598']
DOI: https://doi.org/10.1007/s00253-021-11258-2