Peracetic acid–ionic liquid pretreatment to enhance enzymatic saccharification of lignocellulosic biomass
| Autor: | Kojiro Abe, Noriho Kamiya, Nobuyuki Uemura, Uju, Masahiro Goto, Oshima Toyoji |
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| Rok vydání: | 2013 |
| Předmět: |
Environmental Engineering
Ionic Liquids Lignocellulosic biomass Biomass Bioengineering Lignin chemistry.chemical_compound Hydrolysis Cellulase Peracetic acid Peracetic Acid Cellulose Waste Management and Disposal Trichoderma Chromatography Renewable Energy Sustainability and the Environment Water food and beverages General Medicine biochemical phenomena metabolism and nutrition chemistry Biochemistry Reagent Ionic liquid Carbohydrate Metabolism |
| Zdroj: | Bioresource Technology. 138:87-94 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2013.03.147 |
| Popis: | To enhance enzymatic saccharification of pine biomass, the pretreatment reagents peracetic acid (PAA) and ionic liquid (IL) were validated in single reagent pretreatments or combination pretreatments with different sequences. In a 1 h saccharification, 5–25% cellulose conversion was obtained from the single pretreatment of PAA or IL. In contrast, a marked enhancement in conversion rates was achieved by PAA-IL combination pretreatments (45–70%). The PAA followed by IL (PAA + IL) pretreatment sequence was the most effective for preparing an enzymatic digestible regenerated biomass with 250-fold higher glucose formation rates than untreated biomass and 2- to 12-fold higher than single pretreatments with PAA or IL alone. Structural analysis confirmed that this pretreatment resulted in biomass with highly porous structural fibers associated with the reduction of lignin content and acetyl groups. Using the PAA + IL sequence, biomass loading in the pretreatment step can be increased from 5% to 15% without significant decrease in cellulose conversion. |
| Databáze: | OpenAIRE |
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