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Table 1 Effect of supplementation of MM with nutrients (0.3% (w/v)), alone or in combination, on growth and VA production from 5 mM FA by P. aromaticivorans AR20-38 at 20 °C

From: Bioconversion of ferulic acid and vanillin to vanillic acid by cold-adapted Paraburkholderia aromaticivorans AR20-38: impact of culture conditions

Nutrient supplement

Growth (OD600)

Molar VA yield (%) from 5 mM FA

Without (control)

0.23 a

98.5 a

Glucose

2.75 c

101.9 a

Fructose

2.90 c

101.4 a

Mannose

2.76 c

100.8 a

Yeast extract

1.59 b

98.9 a

Casamino acids

1.30 b

96.2 a

Glucose + yeast extract

3.92 d

101.9 a

Glucose + casamino acids

4.39 e

95.0 a

Fructose + yeast extract

4.34 e

100.6 a

Fructose + casamino acids

4.44 e

98.1 a

Mannose + yeast extract

3.89 d

100.3 a

Mannose + casamino acids

3.90 d

96.4 a

Glucose

2.75 a

101.9 a

Glucose + yeast extract

3.92 b

101.9 a

Glucose + casamino acids

4.39 c

95.0 a

Fructose

2.90 a

101.4 a

Fructose + yeast extract

4.34 b

100.6 a

Fructose + casamino acids

4.44 b

98.1 a

Mannose

2.76 a

100.8 a

Mannose + yeast extract

3.89 b

100.3 a

Mannose + casamino acids

3.90 b

96.4 a

Yeast extract

1.59 a

98.9 a

Glucose + yeast extract

3.92 b

101.9 ab

Fructose + yeast extract

4.34 c

100.6 ab

Mannose + yeast extract

3.89 b

100.3 ab

Casamino acids

1.30 a

96.2 a

Glucose + casamino acids

4.39 c

95.0 a

Fructose + casamino acids

4.44 c

98.1 a

Mannose + casamino acids

3.90 b

96.4 a

  1. Data represent mean values of three replicates. Different letters (a-f) indicate statistically significant differences (p ≤ 0.05) between nutrients