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Experientia

, Volume 33, Issue 3, pp 401–402 | Cite as

A turbidimetric method for the screening of amylase-producing mutants of Aspergillus niger

  • S. Eswaran
  • B. H. Nga
Pro Experimentis
  • 13 Downloads

Summary

The method is based on the assumption that extracellular amylase, which is produced by strains ofAspergillus niger in liquid culture, hydrolyses the starch in the media and brings about a corresponding decrease in the turbidity of the media. Mutant strains which produced different quantities of amylase exhibited different degrees of decrease in turbidity of the media. The results showed that a greater degree of decrease in turbidity was observed for a higher quantity of amylase produced.

Keywords

Starch Turbidity Aspergillus Amylase Great Degree 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Literatur

  1. 1.
    Food and Agriculture Organisation, Rome. Production Yearbook (1971).Google Scholar
  2. 2.
    G. T. Banks, F. Binns andR. L. Cutcliffe, Progr. indust. Microbiol,6, 95 (1976).Google Scholar
  3. 3.
    O. Peralta andJ. G. Reinhold, Clin. chim. Acta1, 157 (1955).Google Scholar

Copyright information

© Birkhäuser Verlag 1977

Authors and Affiliations

  • S. Eswaran
    • 1
  • B. H. Nga
    • 1
  1. 1.Botany DepartmentUniversity of SingaporeSingapore 10(Singapore)

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