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Table 2 Concentrations and conversion yields for the 6 best organic acid producers

From: Exploring fungal biodiversity: organic acid production by 66 strains of filamentous fungi

 

Concentration (g.L −1 )

Mean Y P/S (%)

Aspergillus brasiliensis (BRFM103)

Oxalic acid

0.4 ± 0.1

1.2

Citric acid

0.5 ± 0.1

1.5

Malic acid

0.7 ± 0.2

2.0

Ethanol

3.9 ± 1.0

10.8

Residual glucose

14.2 ± 1.7

 

Aspergillus niger (BRFM420)

Oxalic acid

2.0 ± 0.4

7.0

Citric acid

0.5 ± 0.1

1.9

Residual glucose

21.6 ± 3.8

 

Aspergillus niger (BRFM421)

Oxalic acid

0.4 ± 0.1

1.4

Gluconic acid

2.6 ± 0.5

9.5

Malic acid

0.4 ± 0.1

1.6

Ethanol

4.0 ± 0.7

14.5

Residual glucose

22.9 ± 1.1

 

Aspergillus niger (BRFM422)

Oxalic acid

0.4 ± 0.1

1.3

Citric acid

2.5 ± 0.6

7.7

Tartaric acid

0.2 ± 0.1

0.6

Gluconic acid

3.4 ± 0.1

10.4

Succinic acid

0.8 ± 0.1

2.3

Fumaric acid

0.7 ± 0.2

2.3

Residual glucose

17.6 ± 1.3

 

Aspergillus niger (BRFM431)

Oxalic acid

0.9 ± 0.1

3

Citric acid

2.4 ± 0.4

8.2

Gluconic acid

4.7 ± 0.6

15.6

Malic acid

0.4 ± 0.1

1.5

Succinic acid

0.7 ± 0.1

2.2

Residual glucose

20.4 ± 1.6

 

Aspergillus niger (BRFM434)

Oxalic acid

0.6 ± 0.1

2.2

Citric acid

0.4 ± 0.1

1.4

Gluconic acid

2.4 ± 0.8

8.5

Ethanol

2.1 ± 0.5

7.4

Residual glucose

21.9 ± 1.7

 
  1. Yields are expressed in g of product per g of glucose consumed.
  2. (± SD), n = 3.