Enzymatic saccharification of cellulose in aqueous-ionic liquid 1-ethyl-3-methylimidazolium dimethylphosphate-DMSO media

✍ Scribed by Yu C. He; Cui L. Ma; Dong Q. Xia; Liang Ding; Liang Z. Li; Mu Xian

• Book ID: 111491502
• Publisher: Versita
• Year: 2011
• Tongue: English
• Weight: 344 KB
• Volume: 65
• Category: Article
• ISSN: 0366-6352
• DOI: 10.2478/s11696-011-0066-6

✦ Synopsis

Abstract

Ionic liquid (IL) 1-ethyl-3-methylimidazolium dimethylphosphate ([Emim]DMP) was chosen as an environment-friendly solvent to enzymatically hydrolyze cellulose in situ. Under optimal reaction condition, 80.2 % of cellulose (10 mg mL−1) were converted to glucose in aqueous-IL-DMSO (φ r = 74: 25: 1) media at 55°C in 18 h. Finally, fermentability of the recovered hydrolyzates was evaluated using Saccharomyces cerevisiae which is able to ferment hydrolyzates efficiently, the ethanol production was 0.44 g g−1 of glucose within 24 h of the process. Such information is vital for the saccharification of more complex cellulose materials and for the fermentation of hydrolyzates into biofuel.