Abstract
The thermophilic fungus Thermomyces lanuginosus formerly named Humicola lanuginosa (Domsch et al., 1980) appears to be an excellent test organism for the study of extracellular amylase from a thermophilic fungus (Barnett and Fergus, 1971). Basaveswara Rao et al. (1979) have identified a glucoamylase in the growth medium containing starch from static cultures as well as shake flask cultures. The yield of activity was found to be 2.5 fold greater in shake cultures than in static cultures. Adams (1981) related amylase production to mycelial growth in static cultures and proposed that a mycelial bound amylase could account for the rapid disappearance of starch from the medium and that the extracellular amylase might in large part be due to autolysis. In this paper the relation between growth, enzyme production and substrate utilization was studied in a stirred laboratory fermenter with three different carbon sources.
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References
Adams, P. R., 1981, Amylase Production by Mucor Pusillus and Humicola Lanuginosa as Related to Mycelial Growth, Mycopathologia, 76: 97.
Barnett, E. A., and Fergus, C. L., 1971, The Relation of Extracellular Amylase, Mycelium, and Time in Some Thermophilic and Mesophilic Species, Mycopath. Mycol. Appl., 44:131.
Basaveswara Rao, V., Maheshwari, R., Sastry, N. V. S., and Subba Rao, P. V., 1979, A Thermostable Glucoamylase from the Thermophilic Fungus Thermomyces Lanuginosus, Current Science, 48 (3): 113.
Domsch, K. H., Gams, W., and Anderson, T-H., 1980, “Compendium of Soil Fungi”, Academic Press, London.
Manning, G. B., and Campbell, L. L., 1961, Thermostable Alpha-Amylase of Bacillus Stearothermophilus, J. Biol. Chem., 236:2952.
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© 1987 Plenum Press, New York
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Jensen, B., Olsen, J., Allermann, K. (1987). Extracellular Amylase from the Thermophilic Fungus Thermomyces Lanuginosus . In: Chaloupka, J., Krumphanzl, V. (eds) Extracellular Enzymes of Microorganisms. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1274-1_18
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DOI: https://doi.org/10.1007/978-1-4684-1274-1_18
Publisher Name: Springer, Boston, MA
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