Corn stover pretreatment by inorganic salts and its effects on hemicellulose and cellulose degradation

• Published in: Bioresource technology 2009-12, Vol.100 (23), p.5865-5871
• Main Authors: Liu, Li, Sun, Junshe, Cai, Chengye, Wang, Shuhao, Pei, Haisheng, Zhang, Jingsheng
• Format: Article
• Language: English
• Subjects: agricultural wastes; Agronomy. Soil science and plant productions; Biodegradation, Environmental; Biological and medical sciences; Biotechnology - methods; Catalysis; catalysts; Cellulose; Cellulose - chemistry; chemical degradation; Chlorides; corn stover; Degradation; FeCl 3; ferric chloride; Ferric Compounds - chemistry; Food industries; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Hemicellulose; Hydrogen-Ion Concentration; Inorganic salts; Iron - chemistry; Kinetics; Microscopy, Electron, Scanning - methods; Polysaccharides - chemistry; Salts - chemistry; Surface Properties; Temperature; Use and upgrading of agricultural and food by-products. Biotechnology; Use of agricultural and forest wastes. Biomass use, bioconversion; xylose; Xylose - chemistry; Zea mays - metabolism
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2009.06.048

Inorganic salts, NaCl, KCl, CaCl 2, MgCl 2, FeCl 2, FeSO 4, FeCl 3, and Fe 2(SO 4) 3, were studied as catalysts for the degradation of hemicellulose in corn stover. FeCl 3 significantly increased the hemicellulose degradation in aqueous solutions heated between 140 and 200 °C with high xylose recovery and low cellulose removal, amounting to ∼90% and