Cellulase processing of lyocell and viscose type fibres: kinetics parameters

作者: F. Carrillo , X. Colom , M. López-Mesas , M.J. Lis , F. González

DOI: 10.1016/S0032-9592(03)00066-9

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摘要: Abstract Differences in hydrolysis behaviour between lyocell and viscose type regenerated celluloses (viscose modal) have been evaluated by the study of enzymic cellulases. Kinetic parameters (V em k e ) enzyme catalytic specificity were calculated during cellulase processing. The results show low adsorption, rate =0.407 h/l h) fibres ahead viscose-type due to their higher orientation crystallinity. Fibrillation treatment favours attack greatly increasing availability sites for adsorption.

参考文章(13)
Rui-Gang Liu, Yi-Yi Shen, Hui-Li Shao, Cheng-Xun Wu, Xue-Chao Hu, An Analysis of Lyocell Fiber Formation as a Melt–spinning Process Cellulose. ,vol. 8, pp. 13- 21 ,(2001) , 10.1023/A:1016785410218
H.-P Fink, P Weigel, H.J Purz, J Ganster, Structure formation of regenerated cellulose materials from NMMO-solutions Progress in Polymer Science. ,vol. 26, pp. 1473- 1524 ,(2001) , 10.1016/S0079-6700(01)00025-9
G. L. Miller, Use of Dinitrosalicylic Acid Reagent for Determination of Reducing Sugar Analytical Chemistry. ,vol. 31, pp. 426- 428 ,(1959) , 10.1021/AC60147A030
J. Valldeperas, F. Carrillo, M.J. Lis, J.A. Navarro, Kinetics of Enzymatic Hydrolysis of Lyocell Fibers Textile Research Journal. ,vol. 70, pp. 981- 984 ,(2000) , 10.1177/004051750007001108
X Colom, F Carrillo, Crystallinity changes in lyocell and viscose-type fibres by caustic treatment European Polymer Journal. ,vol. 38, pp. 2225- 2230 ,(2002) , 10.1016/S0014-3057(02)00132-5
J. Lenz, J. Schurz, E. Wrentschur, Properties and structure of solvent-spun and viscose-type fibres in the swollen state Colloid and Polymer Science. ,vol. 271, pp. 460- 468 ,(1993) , 10.1007/BF00657390
D.B. Wilson, L.P. Walker, Enzymatic hydrolysis of cellulose: An overview Bioresource Technology. ,vol. 36, pp. 3- 14 ,(1991) , 10.1016/0960-8524(91)90095-2
Douglas E Eveleigh, Mary Mandels, Raymond Andreotti, Charles Roche, Measurement of saccharifying cellulase. Biotechnology for Biofuels. ,vol. 2, pp. 21- 33 ,(2009) , 10.1186/1754-6834-2-21