Table 5. Carotenoid composition in FPS and crtE mutants and wild-type X. dendrorhous strains (in ppm, µg per g of dry yeast weight).
| Strains (72 h of cultivation) | |||||
| Carotenoids | UCD 67–385 | 385-FPS(+/+, +1) | 385-crtE(+/+, +1) | 385-FPS(+/−) | 385-crtE(+/−) |
| Total | 376.3±5.52 (100) | 472.9±25.6 (100) | 513.4±12.9 (100) | 380.8±21.4 (100) | 388.0±5.8 (100) |
| Astaxanthin | 305.9±12.9 (81.3) | 428.4±9.5 (90.6) | 451.1±12.5 (87.9) | 231.0±32.8 (60.7) | 200.4±34.9 (51.6) |
| Phoenicoxanthin | 50.1±4.0 (13.3) | 30.0±4.5 (6.3) | 38.0±1.9 (7.4) | 60.0±2.3 (15.8) | 62.5±1.5 (16.1) |
| Cantaxanthin | 9.0±0.6 (2.4) | 9.6±2.0 (2.0) | 10.5±2.7 (2.0) | 15.3±2.7 (4.0) | 14.6±4.0 (3.8) |
| OH-echinenone | 4.8±3.0 (1.3) | ND | 4.4±4.0 (0.9) | 10.5±6.8 (2.8) | 25.9±9.7 (6.7) |
| Echinenone | 1.7±1.7 (0.5) | ND | 3.9±2.9 (0.8) | 28.9±8.9 (7.6) | 34.0±5.9 (8.8) |
| β-carotene | 3.1±3.1 (0.8) | ND | ND | 38.0±18.7(10.0) | 48.0±14.0 (12.4) |
Table shows the mean values ± standard error of the mean of the results of three independent cultures. Percentage relative to total carotenoids is indicated in parentheses.
ND: Not detected.