The Purification of Industrial Alkali Lignin with Xylanase

Abstract:

The purification of industrial alkali lignin with xylanase was investigated. Then the treated lignin was analyzed by ultraviolet (UV) and Fourier transform infrared spectroscopy (FT-IR). The structure change of lignin-carbohydrate complexes (LCC) in industrial alkali lignin was also studied. The results indicate that the content and the purity of lignin increased. And LCC can be broken by xylanase. This will make the applications and development of using lignin as reactive sites and biodegradability inducing sites more advantageously.

• Periodical: Advanced Materials Research (Volumes 884-885)
• Pages: 598-602
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.884-885.598
• Online since: January 2014
• Authors: Lai Xin Dai, Hong Mei Lu, Li Ping Zhang
• Keywords: Industrial Alkali Lignin, Purification, Xylanase

References

[1] V. Alonso, A. Martin, R. Borja, A. Chica: Environmental Technol Vol. 14 (1993), P. 1145.

[2] H.H. Nimz, in: A. Pizzi (Ed. ), Wood Adhesives: Chemistry and Technology Vol. 1, Dekker, New York (1983), p.247.

[3] Funaoka M, Matsubara M, Seki N, Fukatsu S. Conversion of native lignin to a highly phenolic functional polymer and its separation from lignocellulosics. Biotechnol Bioeng(1995), 46(6), pp.545-552.

DOI: 10.1002/bit.260460607

[4] Matsushita Y, Yasuda S. Reactivity of a condensed-type lignin model compound in the Mannich reaction and preparation of cationic surfactant from sulfuric acid lignin. J Wood Sci(2003), 49(2), pp.166-171.

DOI: 10.1007/s100860300026

[5] Zhou MS, Qiu XQ, Yang DJ, Lou HM, Ouyang XP. Highperformance dispersant of coal-water slurry synthesized from wheat straw alkali lignin. Fuel Process Technol(2007), 88(4), pp.375-382.

DOI: 10.1016/j.fuproc.2006.11.004

[6] Goncalves AR, Benar P. Hydroxymethylation and oxidation of Organosolv lignins and utilization of the products. Bioresour Technology (2001), 79(2), pp.103-111.

DOI: 10.1016/s0960-8524(01)00056-6

[7] Yong Sun, Xueqing Qiu, Yunquan Liu. Chemical reactivity of alkali lignin modified with laccase. Biomass and Bioenergy Vol. 55(2013), pp.198-204.

DOI: 10.1016/j.biombioe.2013.02.006

[8] R. Singh, S. Singh, K.D. Trimukhe, K.V. Pandare, K.B. Bastawade, D.V. Gokhale, A.J. Varma. Lignin–carbohydrate complexes from sugarcane bagasse: Preparation, purification, and characterization. Carbohydrate Polymers Vol. 62 (2005), pp.57-66.

DOI: 10.1016/j.carbpol.2005.07.011

[9] Wu Shufang, You Jixue. Changes of lignin and carbohydrate in alkaline wheat straw pulp after xylanase treatment. Jounal of cellulose science and technology(2002), Vol. 6, pp.43-46.

[10] Miller, G.L., Use of dinitrosalicylic acid reagent for determination of reducing sugar. Anal. Chem. Vol. 31(1959), pp.426-428.

DOI: 10.1021/ac60147a030

[11] Yang Shuhui. Plant fibre science. China light industry press (2001), pp.114-116.

[12] A. Scalbert, B. Monties, E. Guittet, J.Y. Lallemand, Holzforschung, Vol. 40(1986), p.119.

DOI: 10.1515/hfsg.1986.40.2.119

[13] B. Xiao, X.F. Sun, RunCang Sun. Chemical, structural, and thermal characterizations of alkali-soluble lignins and hemicelluloses, and cellulose from maize stems, rye straw, and rice straw. Polymer Degradation and Stability Vol. 74(2001).

DOI: 10.1016/s0141-3910(01)00163-x

[14] J.G. Buta, F. Zadrazil, G.C. Galletti, J. Agric. Food Chem. Vol. 37 (1989), p.1382.