Figure 3From: Engineering of Aspergillus niger for the production of secondary metabolites Screening for the best enniatin producing strain. 5 × 106 spores/ml were cultivated in 20 ml complete medium for 40 h. Expression of the esyn1 gene was induced after 16 h of cultivation time using 20 μg/ml Dox. From each strain, enniatin was purified from biomass and supernatant samples and the overall enniatin concentration harvested is indicated.Back to article page