Heterogeneous Biocatalysis in the Degradation of β-Glucan Polymers
The abundance of cellulose containing waste materials has given rise to intensive research on enzymatic breakdown of β-glucans (1). The high viscosity due to some cereal polysaccharides and certain other biopolymers frequently causes, even at relatively low concentrations, severe problems during brewing and processing of certain food industry wastes. Soluble ß-glucanase active preparations have recently become available to decrease wort viscosity and to improve filtrability, in particular when unmalted grain is used (2,3). An immobilized biocatalyst would be of advantage in providing means for economic continuous processing. Few reports on the immobilization of ß-glucanases have been published (4-9). We have investigated a number of methods for the immobilization of Trichoderma reesei cellulase and commercial 3-glucanase preparations.
KeywordsTrichoderma Reesei Active Preparation Wheat Starch Immobilize Biocatalyst Enzymatic Breakdown
Unable to display preview. Download preview PDF.
- 2.BOURNE, D.T., JONES, M. & PIERCE, J.S. MBAA Tech. Quart. 13(1): 3, 1976.Google Scholar
- 3.KNOPFEL, H.P. & PFENNINGER, H.B. MBAA Tech. Quart. 13(4): 257, 1976.Google Scholar
- 4.MANDELS, M., KOSTICK, J. & PARIZEK, R. J. Polymer Sci. C36: 445, 1971.Google Scholar
- 5.WOOD, L.L., HARTDEGEN, F.J. & Hahn, P.A. U.S. 3,929,574, 1975.Google Scholar
- 6.FENIKSOVA, R.V., KALUNYANTS, K.A., VAGANOVA, M.S., SCHUS, G.V., NAHKAPETYAN, L.A., MEYALILOVA, I.I., LUZHKOV, A.M. & CHERNOVA, G.A. Ussr 562,573, 1975.Google Scholar
- 8.ISAO, K., MINORU, K. & MASARU, Y. Japan. Kokai 77 47, 982, 1977.Google Scholar