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Table 3 Determination of fermentative parameters for mutant and wild type wine yeast strains EC1118 and Mab2C in two independent lab-scale vinifications

From: Construction of low-ethanol–wine yeasts through partial deletion of the Saccharomyces cerevisiae PDC2 gene

Parameter

EC1118

EC1118Δ519

Mab2C

Mab2CΔ519

V3

V3

V4

V4

Main compounds (g/L)

 Consumed sugar

210.38 ± 0.64A

203.95 ± 2.51B

212.03 ± 0.44A

209.01 ± 0.63B

 CO2

94.84 ± 2.05A

91.56 ± 3.01A

95.60 ± 3.50A

93.51 ± 1.40A

 Ethanol

102.31 ± 2.99A

87.05 ± 2.77B

95.73 ± 4.05A

86.00 ± 1.58B

 Acetate

1.13 ± 0.16A

1.12 ± 0.19A

0.83 ± 0.17A

0.86 ± 0.19A

Balance (%)

 Carbon

94.42 ± 1.81A

88.81 ± 1.48B

90.82 ± 3.19A

86.78 ± 0.47A

Yield

 Ethanol production (% [v/v])

12.97 ± 0.38A

11.03 ± 0.35B

12.13 ± 0.51A

10.90 ± 0.20B

 EtOH (g/g glucose consumed)

0.49 ± 0.013A

0.43 ± 0.08B

0.47 ± 0.021A

0.42 ± 0.008B

 Glucose (g) required for 1% (v/v) ethanol production

16.23 ± 0.42A

18.49 ± 0.36B

17.50 ± 0.71B

19.18 ± 0.32A

 Residual sugar (g/L)

6.22 ± 0.64A

12.65 ± 2.51B

4.57 ± 0.44B

7.59 ± 0.63A

  1. Distinct letters correspond to statistical significant difference for a Fischer test with p < 0.05