Effective Extraction of Lignin from Elephant Grass Using Imidazole and Its Effect on Enzymatic Saccharification To Produce Fermentable Sugars

Autor: Andréia Toscan, Susana M. Paixão, Aldo José Pinheiro Dillon, Marli Camassola, Rafal M. Lukasik, Ana Rita C. Morais, Luís Alves, Jürgen Andreaus
Rok vydání: 2017
Předmět:
Zdroj: Industrial & Engineering Chemistry Research. 56:5138-5145
ISSN: 1520-5045
0888-5885
DOI: 10.1021/acs.iecr.6b04932
Popis: Elephant grass (Pennisetum purpureum Schum.) is an energy crop ready to be used as a source of fermentable sugars. Imidazole was proposed as a new solvent for biomass fractionation to facilitate disruption of the lignocellulosic matrix and production of a polysaccharide lignin-free material highly susceptible to enzymatic saccharification. Approximately 82% w·w–1 of lignin was extracted from elephant grass under the optimized operational condition (135.6 °C for 308.4 min). For similar conditions the recovered polysaccharide-rich materials demonstrated enzymatic digestibility with glucan to glucose yields as high as 80.6 mol %.
Databáze: OpenAIRE