Concentration of supplements

Cell optical density (at 600 nm) of sample collected after 48 hrs of fermentation

Cell optical density (at 600 nm) of sample collected after 60 hrs of fermentation

Acetate

2 g/l

1.91

2.06

Succinate

2 g/l

1.57

1.76

Citrate

2 g/l

2.05

2.18

Acetate and Succinate

(each 1g/l.)

1.70

1.91

Citrate and Succinate

(each 1g/l.)

1.83

2.00

Acetate and Citrate

(each 1g/l.)

2.02

2.19

Acetate, Citrate and Succinate (each 1g/l.)

2.07

2.20