Abstract

The dry weight of the mycelium of Aspergillus giganteus mut. alba depends on the glucose concentration and light intensity. At a light intensity of 10 W m −2 and a glucose concentration of 20% its dry weight is about 60% higher than when cultivated in darkness. The structure of the mycelial substratum is also changed. Each light intensity has an optimal concentration of glucose. Increased biomass in light occurs only on a nutrient solution containing yeast extract. The influence of yeast extract can be partly replaced by increasing the amount of nitrogen and phosphorus supplied.

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