Extracellular ß-galactosidase production during growth of filamentous fungi on polygalacturonic acid |
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| Authors: | A.M. McKay |
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| Affiliation: | Food and Agricultural Microbiology Research Division, Department of Agriculture for Northern Ireland and Department of Food and Agricultural Microbiology, The Queen's University of Belfast, Newforge Lane, Belfast BT9 5PX, UK |
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| Abstract: | The ß-galactosidase enzymes of Aspergillus oryzae and Scopulariopsis sp. are secreted during growth of the fungi on polygalacturonic acid, but not during growth on a wide range of other substrates, including lactose. The enzymes are thermotolerant with temperature optima in the range 55–65°C. The results indicate that fungal extracellular ß-galactosidases are involved in fungal growth on complex polysaccharides but not on lactose. |
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