title: Variable optimization for biopulping of agricultural residues by Ceriporiopsis subvermispora.
abstract: Ceriporiopsis subvermispora was used for biochemical pulping of agricultural residues and the results were compared with chemical pulping. Independent variables were screened by Plackett-Burman and optimized by full factorial experimental designs. Biological treatment of rice, wheat and barley straw samples resulted in decrease of the kappa number of these straws by 34%, 21% and 19%, respectively, as compared with controlled samples. The tensile strength and burst factor of hand sheets produced from rice straw were increased by 51% and 33% as compared with the control straws. The tensile strength and burst factor of hand sheets produced from wheat straws were improved by 67% and 36%, these variables for barely straws were 36.7% and 45%, respectively. Although the delignification of wheat and barley straws are not as efficient as chemical process, but the quality of papers produced by biochemical pulping of straws were excellent.
authors.affiliation: Biotechnology Group, Chemical Engineering Department, Tarbiat Modarres University, Tehran, P.O. Box 14115-143, Iran.
authors.forename: Kamel
authors.initials: K
authors.lastname: Yaghoubi
authors.forename: Mohammad
authors.initials: M
authors.lastname: Pazouki
authors.forename: Seyed Abbas
authors.initials: SA
authors.lastname: Shojaosadati
mesh_terms: D000383:Agriculture / Q000379:methods*; D001487:Basidiomycota / Q000378:metabolism*; D001671:Biochemistry / Q000379:methods; D001673:Biodegradation, Environmental; D002482:Cellulose / Q000737:chemistry; D005285:Fermentation; D001467:Hordeum; D008031:Lignin / Q000737:chemistry; D015233:Models, Statistical; D012275:Oryza; D012107:Research Design; D013379:Substrate Specificity; D013718:Tensile Strength; D014908:Triticum; D014934:Wood
chemical_list: D002482:Cellulose; D008031:Lignin