E. Stratilova et al., EFFECT OF CULTIVATION AND STORAGE PH ON THE PRODUCTION OF MULTIPLE FORMS OF POLYGALACTURONASE BY ASPERGILLUS-NIGER, Biotechnology letters, 18(1), 1996, pp. 41-44
The production of multiple forms of extracellular polygalacturonase by
Aspergillus niger is directly dependent on the pH of maintenance medi
a. The pH of cultivation medium as well as the carbon-source are only
secondary factors with limited influence on this production.