TABLE 4.
Growth rates of selected gut bacteria on novel galacto-oligosaccharides
| Microorganism | Mean growth rate (μ h−1) ± SD on oligosaccharide prepna:
|
|||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | |
| L. acidophilus ANR-1 | 0.69 ± 0.03 | 1.16 ± 0.06 | 0.93 ± 0.10 | 0.57 ± 0.04 | 1.30 ± 0.03 | 0.72 ± 0.05 |
| B. ovatus ANGNIb | 0.50 ± 0.04 | 0.26 ± 0.04 | 0.25 ± 0.03 | 0.25 ± 0.03 | 0.35 ± 0.05 | 0.22 ± 0.02 |
| B. pseudolongum DSM-20099 | 0.56 ± 0.02 | 0.69 ± 0.02 | 0.66 ± 0.01 | 0.99 ± 0.05 | 0.64 ± 0.02 | 0.69 ± 0.03 |
| B. longum ANB-2 | 0.52 ± 0.05 | 0.58 ± 0.00 | 0.67 ± 0.03 | 0.64 ± 0.01 | 0.52 ± 0.01 | 0.84 ± 0.02 |
| B. infantis DSM-20088 | 0.95 ± 0.01 | 0.98 ± 0.00 | 1.20 ± 0.04 | 0.73 ± 0.03 | 0.99 ± 0.05 | 0.95 ± 0.01 |
| B. bifidum BB-12 | 0.95 ± 0.03 | 1.05 ± 0.01 | 0.76 ± 0.02 | 0.79 ± 0.03 | 0.73 ± 0.02 | 1.05 ± 0.01 |
| B. angulatum | 0.87 ± 0.05 | 0.89 ± 0.00 | 0.96 ± 0.02 | 0.71 ± 0.00 | 0.91 ± 0.04 | 1.27 ± 0.09 |
| B. adolescentis ANB-7 | 1.02 ± 0.06 | 0.48 ± 0.02 | 0.48 ± 0.01 | 0.81 ± 0.05 | 0.83 ± 0.01 | 1.01 ± 0.03 |
a
Values are specific growth rates and are means of triplicate determinations. Oligosaccharide mixtures are identified as follows: 1, Oligomate 55; 2, B. bifidum BB-12 oligosaccharide; 3, B. infantis DSM-20088 oligosaccharide; 4, B. pseudolongum DSM-20099 oligosaccharide; 5, B. adolescentis ANB-7 oligosaccharide; 6, B. angulatum oligosaccharide. Values in boldface represent better growth on homologous oligosaccharide.
b
That is, Bacteroides ovatus. All other organisms, except L. acidophilus, belong to the genus Bifidobacterium.