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Table 2 Concentration (g L−1) of organic acids and pH measured in SDW filtrates after 0, 7 and 10 days of aerobic fermentation by A. niger

From: Production of Aspergillus niger biomass on sugarcane distillery wastewater: physiological aspects and potential for biodiesel production

Organic acids

Concentrations

Day 0

Day 5

Day 7

Day 10

Itaconic acid

0.70 ± 0.25

0.63 ± 0.26

0.88 ± 0.22

0.87 ± 0.28

Trans-aconitic acid

5.71 ± 0.51

4.54 ± 1.4

4.32 ± 0.77

1.59 ± 0.37

Citric acid

2.84 ± 0.76

3.37 ± 0.28

1.36 ± 0.91

Bd

Isocitric acid

2.47 ± 0.46

2.52 ± 0.17

2.77 ± 0.41

Bd

Oxalic acid

0.61 ± 0.18

0.52 ± 0.14

1.45 ± 0.53

0.38 ± 0.14

pH

4.6 ± 0.1

5.07 ± 0.49

5.93 ± 1.21

5.37 ± 0.13

  1. Each value is a mean of at least three independent experiments
  2. Bd below detection level
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Fungal Biology and Biotechnology

ISSN: 2054-3085

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