Table 2.
Maximum optical densities OD600 a of single-culture fermentations using different galacto-oligosaccharide mixtures or glucose as the main carbohydrate substrates.
| Strain | Carbohydrate Source b | ||||
|---|---|---|---|---|---|
| V-GOS | 4′GOS-P | Lb-GOS | Glucose | Blank c | |
| L. reuteri Lb46 | 1.26 ± 0.03 | 1.25 ± 0.01 | 1.38 ± 0.01 | 1.28 ± 0.04 | 0.25 ± 0.00 |
| L. reuteri Lb21 | 1.19 ± 0.02 | 1.19 ± 0.02 | 1.31 ± 0.01 | 1.30 ± 0.04 | 0.34 ± 0.02 |
| L. acidophilus Lb19 | 1.35 ± 0.04 | 1.19 ± 0.02 | 1.47 ± 0.01 | 1.43 ± 0.03 | 0.40 ± 0.04 |
| L. acidophilus Lb71 | 1.41 ± 0.03 | 1.36 ± 0.06 | 1.54 ± 0.01 | 1.47 ± 0.03 | 0.43 ± 0.00 |
| L. acidophilus Lb105 | 1.36 ± 0.04 | 1.39 ± 0.05 | 1.47 ± 0.05 | 1.44 ± 0.06 | 0.38 ± 0.00 |
| L. rhamnosus Lb29 | 1.01 ± 0.01 | 0.56 ±0.03 | 0.74 ±0.01 | 1.64 ± 0.01 | 0.80 ± 0.03 |
| L. paracasei subsp. paracasei Lb16 | 1.33 ± 0.01 | 0.55 ± 0.01 | 1.21 ± 0.01 | 1.55 ± 0.01 | 0.71 ± 0.10 |
| L. paracasei subsp. paracasei Lb20 | 1.33 ± 0.01 | 0.55 ± 0.02 | 1.21 ± 0.01 | 1.54 ± 0.00 | 0.71 ± 0.02 |
| B. animalis subsp. lactis Bif1 | 0.77 ± 0.03 | 0.34 ± 0.04 | 0.95 ± 0.03 | 1.22 ± 0.02 | 0.25 ± 0.02 |
| B. animalis subsp. lactis Bif3 | 0.84 ± 0.04 | 0.35 ± 0.02 | 0.95 ± 0.03 | 1.05 ± 0.02 | 0.24 ± 0.10 |
| B. longum Bif14 | 0.69 ± 0.06 | 0.28 ± 0.02 | 0.79 ± 0.03 | 0.78 ± 0.03 | 0.31 ± 0.01 |
| E. faecium En61 | 0.72 ± 0.07 | 0.46 ± 0.01 | 0.88 ± 0.10 | 0.66 ± 0.01 | 0.67 ± 0.19 |
| E. coli DSM 613 | 0.40 ± 0.01 | 0.69 ± 0.05 | 0.38 ± 0.01 | 0.41 ± 0.02 | 0.95 ± 0.04 |
| K. oxytoca DSM 6673 | 0.35 ± 0.00 | 0.45 ± 0.06 | 0.33 ± 0.05 | 0.36 ± 0.04 | 1.01 ± 0.10 |
| C. freundii DSM 30039 | 0.51 ± 0.02 | 0.73 ± 0.01 | 0.34 ± 0.04 | 0.42 ± 0.09 | 0.89 ± 0.04 |
| S. epidermis DSM 20044 | 0.93 ± 0.02 | 0.75 ± 0.08 | 0.88 ± 0.04 | 0.96 ± 0.02 | 0.66 ± 0.09 |
a Maximum values of optical densities OD600 obtained during the growth of these strains on different carbohydrate substrates at 37 °C and 24 h. Values given are the mean of three independent experiments ± standard deviation. b The concentration of the C-source was 0.5% w/v. V-GOS, Vivinal galacto-oligosaccharides; 4′GOS-P, β1→4 linked galacto-oligosaccharides; GOS, galacto-oligosaccharides produced by β-galactosidase from Lactobacillus sp. c A blank shows growth on the respective complex basal medium without an added sugar.