Abstract
Amyloglucosidase (AMG) was produced by Aspergillus niger in solid-state fermentation (SSF), submerged fermentation (SmF) and an aqueous, two-phase system of polyethyleneglycol (PEG) and salt. In SSF, a fed-batch mode of operation gave a yield of 64 U/ml compared with 44 U/ml in batch mode. Similar trends were observed for SmF, where fed-batch cultivation gave a yield of 102 U/ml compared with 66 U/ml in batch. Shorter cultivation times (66 h) were required for SmF than for SSF (96 h). In the aqueous, two-phase cultivation, the productivity and yield of AMG were both twice those in the control fermentation.
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M. Ramadas is with the Department of Biochemistry, Faculty of Medicine, University of Jaffna, Kokuvil, Sri Lanka. O. Holst and B. Mattiasson are with the Department of Biotechnology, Chemical Center, Lund University, Box 124, S-221 00 Lund, Sweden
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Ramadas, M., Holst, O. & Mattiasson, B. Production of amyloglucosidase by Aspergillus niger under different cultivation regimens. World Journal of Microbiology & Biotechnology 12, 267–271 (1996). https://doi.org/10.1007/BF00360926
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DOI: https://doi.org/10.1007/BF00360926