Table 2.
Carotenoid composition in percent of S. xylosus strains J70 and DSM 20266T related to growth temperature.
| Strain | DSM 20266 T | J70 | |||
|---|---|---|---|---|---|
| Carotenoid (%) | tR (min) UV | 10 °C | 30 °C | 10 °C | 30 °C |
| all-trans-4,4′-diaponeurosporeate | 3.199 | 6.7 | n.d. | 15.0 | n.d. |
| staphyloxanthin-like | 4.003 | 2.5 | n.d. | 4.0 | n.d. |
| all-trans-staphyloxanthin |
4.691 (4.318) |
32.5 (0.4) |
n.d. |
50.5 (0.9) |
n.d. |
| staphyloxanthin-like |
5.638 (5.165) |
21.8 (1.8) |
n.d. |
13.2 (1.7) |
n.d. |
| staphyloxanthin-like |
6.800 (6.227) |
23.7 (2.8) |
n.d. |
11.3 (1.4) |
n.d. |
| staphyloxanthin-like |
7.991 (7.475) |
6.7 (1.2) |
n.d. |
2.0 (0.0) |
n.d. |
|
Total carotenoid concentration (µg/gcell dry weight) |
451.4 ± 20.0 | n.d. | 169.0 ± 11.1 | n.d. | |
Carotenoid data obtained by HPLC-DAD-APCI-MSn. Corresponding cis-Peaks shown in brackets. Total carotenoid concentration displayed in (µg/gcell dry weight) (n.d.: not detected). Numbers following ± sign are standard deviations, tR = retention time.