Xylan hydrolysis in zinc chloride solution
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.Get Access
Xylan is the major component of hemicellulose, which consists of up to one-third of the lignocellulosic biomass. When the zinc chloride solution was used as a pretreatment agent to facilitate cellulose hydrolysis, hemicellulose was hydrolyzed during the pretreatment stage. In this study, xylan was used as a model to study the hydrolysis of hemicellulose in zinc chloride solution. The degradation of xylose that is released from xylan was reduced by the formation of zinc-xylose complex. The xylose yield was >90% (w/w) at 70°C. The yield and rate of hydrolysis were a function of temperature and the concentration of zinc chloride. The ratio of zinc chloride can be decreased from 9 to 1.3 (w/w). At this ratio, 76% of xylose yield was obtained. When wheat straw was pretreated with a concentrated zinc chloride solution, the hemicellulose hydrolysate contained only xylose and trace amounts of arabinose and oligosaccharides. With this approach, the hemicellulose hydrolysate can be separated from cellulose residue, which would be hydrolyzed subsequently to glucose by acid or enzymes to produce glucose. This production scheme provided a method to produce glucose and xylose in different streams, which can be fermented in separated fermenters.
- Ladisch, M. R. In: Kitani, O., Hall, C. W. eds. (1989) Biomass Handbook. Gordon and Breach Science Publishers, New York, pp. 435-435
- Preez, J. C., Bosch, M., Prior, B. A. (1986) Appl. Microbiol. Technol. 23: pp. 228-228
- Rizzi, M. (1988) Biotechnol. Bioeng. 34: pp. 509-509 CrossRef
- Laplace, J. M., Delgenes, J. P., Moletta, R., Navarro, J. M. (1993) Appl. Microbiol. Biotechnol. 39: pp. 760-760 CrossRef
- Slininger, P. J. (1991) Biotechnol. Bioeng. 37: pp. 973-973 CrossRef
- Panchal, C. J. (1988) Can. J. Microbiol. 34: pp. 1316-1316 CrossRef
- Wayman, M. In: Young, R. A., Rowell, R. M. eds. (1986) Cellulose. Wiley-Interscience, New York, pp. 265-265
- Fontana, J. D., et al. (1984),Biotechnol. Bioeng. Symp. 175.
- Hormeyer, H. F., Bonn, G., Kim, D. W., Bobleter, O. (1987) J. Wood Chem. Technol. 7: pp. 269-269 CrossRef
- Bobleter, O., Schwald, W., Bonn, G., and Esterbauer, H. (1985), Austrian Patent No. A 102/85.
- Banerjee, M. (1989) Appl. Environ. Microbiol. 55: pp. 1169-1169
- Nikitin, N. I. (1966),The Chemistry of Cellulose and Wood, Israel Program for Scientific Translation, p. 74.
- Cao, N. J., Xu, Q., Chen, C. S., Gong, C. S., Chen, L. F. (1994) Appl. Biochem. Biotechnol. 45/46: pp. 521-521 CrossRef
- Cao, N. J., Xu, Q., and Chen, L. F. (1994) Sixteen Symposium on Biotechnology for Fuels and Chemicals, in Gatlinburg, TN.
- Wenda, L. (1990) J. Wood Chem. Technol. 10: pp. 123-123 CrossRef
- Xylan hydrolysis in zinc chloride solution
Applied Biochemistry and Biotechnology
Volume 51-52, Issue 1 , pp 97-104
- Cover Date
- Print ISSN
- Online ISSN
- Humana Press
- Additional Links
- zinc chloride
- zinc-xylose complex
- Industry Sectors