Hydrolysis of biomass using a reusable solid carbon acid catalyst and fermentation of the catalytic hydrolysate to ethanol

作者：Goswami Mandavi; Meena S; Navatha S; Rani K N Prasanna; Pandey Ashok; Sukumaran Rajeev Kumar; Prasad R B N; Devi B L A Prabhavathi^*

来源：Bioresource Technology, 2015, 188: 99-102.

DOI：10.1016/j.biortech.2015.03.012

• Solid acid catalyst
• Bioethanol
• Enzymatic hydrolysis
• Catalytic hydrolysis
• Fermentation

Solid acid catalysts can hydrolyze cellulose with lower reaction times and are easy to recover and reuse. A glycerol based carbon acid catalyst developed at CSIR-IICT performed well in acid catalysis reactions and hence this study was undertaken to evaluate the catalyst for hydrolysis of biomass (alkali pretreated or native rice straw). The catalyst could release 262 mg/g total reducing sugars (TRS) in 4 h at 140 degrees C from alkali pretreated rice straw, and more importantly it released 147 mg/g TRS from native biomass. Reusability of the catalyst was also demonstrated. Catalytic hydrolysate was used as sugar source for fermentation to produce ethanol. Results indicate the solid acid catalyst as an interesting option for biomass hydrolysis.

• 出版日期2015-7