Corn fiber, cobs and stover: Enzyme-aided saccharification and co-fermentation after dilute acid pretreatment
| Autor: | Femke van Dongen, Mirjam A. Kabel, David Van Eylen, Jan A.M. de Bont |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Co-fermentation
AFSG Stafafdelingen (WUATV) Environmental Engineering lignin Bioengineering Xylose Zea mays xylan fuel ethanol chemistry.chemical_compound Hydrolysis oligosaccharides Levensmiddelenchemie Monosaccharide Ethanol fuel Food science Cellulose autohydrolysis Waste Management and Disposal Stover VLAG chemistry.chemical_classification Food Chemistry Renewable Energy Sustainability and the Environment food and beverages General Medicine maize bran AFSG Staff Departments (WUATV) cellulose Enzymes products hydrolysis Biochemistry chemistry Fermentation Carbohydrate Metabolism Acids complex |
| Zdroj: | Bioresource Technology 102 (2011) 10 Bioresource Technology, 102(10), 5995-6004 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2011.02.049 |
| Popis: | Three corn feedstocks (fibers, cobs and stover) available for sustainable second generation bioethanol production were subjected to pretreatments with the aim of preventing formation of yeast-inhibiting sugar-degradation products. After pretreatment, monosaccharides, soluble oligosaccharides and residual sugars were quantified. The size of the soluble xylans was estimated by size exclusion chromatography. The pretreatments resulted in relatively low monosaccharide release, but conditions were reached to obtain most of the xylan-structures in the soluble part. A state of the art commercial enzyme preparation, Cellic CTec2, was tested in hydrolyzing these dilute acid-pretreated feedstocks. The xylose and glucose liberated were fermented by a recombinant Saccharomyces cerevisiae strain. In the simultaneous enzymatic saccharification and fermentation system employed, a concentration of more than 5% (v/v) (0.2 g per g of dry matter) of ethanol was reached. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect