Summary
The microorganism Aspergillus niger CCRC 31494 can produce an extracellular glucosyltransferase (GTase, EC 2.4.1.24) with a high transglucosylating activity. The maximal enzyme production occurred at initial maltose concentration of 40 gl-1. The microorganism was also grown in a 5-liter jar fermenter for GTase production. It was found that the optimal agitation and aeration rates were 750 rev min-1 and 1.0 l min-1, respectively, and the enzyme production was about 0.25–0.26 units ml-1.
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Chen, WC., Lee, SL. & Tung, PY. Effects of initial maltose concentration, agitation and aeration rates on the production of glucosyltransferase byAspergillus niger CCRC 31494. Biotechnol Lett 18, 489–494 (1996). https://doi.org/10.1007/BF00140189
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DOI: https://doi.org/10.1007/BF00140189