Table 4.
Parameter | Strain | Temperature | |||||
---|---|---|---|---|---|---|---|
12 °C | 16 °C | 18 °C | 20 °C | 22 °C | 24 °C | ||
Biomass yield (gd.m./L) | DSM 5626 | 7.97 ± 0.75c A | 10.37 ± 0.98ab A | 12.49 ± 1.19a A | 12.05 ± 0.71a A | 11.86 ± 0.50a A | 9.42 ± 1.18b A |
CMIFS 102 | 6.17 ± 0.49c B | 7.19 ± 0.42bc B | 8.48 ± 0.17ab B | 9.27 ± 0.68a B | 8.04 ± 0.45b B | 5.92 ± 0.68c B | |
CMIFS 110 | 4.02 ± 0.36c C | 5.59 ± 0.44b C | 7.32 ± 0.35a C | 7.47 ± 0.58a C | 6.81 ± 1.04a B | 4.30 ± 0.35c C | |
CMIFS 114 | 3.47 ± 0.30c C | 4.21 ± 0.21b D | 6.25 ± 0.35a D | 6.34 ± 0.65a C | 4.87 ± 0.29b C | 2.88 ± 0.31c D | |
Carotenoid content in biomass (µg/gd.m.) | DSM 5626 | 296.01 ± 9.69a B | 251.29 ± 7.46b B | 211.61 ± 7.28c D | 214.26 ± 11.37c B | 196.10 ± 7.07cd B | 175.84 ± 9.66d B |
CMIFS 102 | 356.15 ± 7.37a A | 335.52 ± 17.48ab A | 316.49 ± 11.56b A | 302.81 ± 18.65bc A | 270.83 ± 10.42c A | 230.22 ± 11.39d A | |
CMIFS 110 | 358.35 ± 20.44a A | 341.33 ± 14.76a A | 272.96 ± 10.12b B | 275.06 ± 17.85b A | 265.39 ± 19.88b A | 227.05 ± 12.73c A | |
CMIFS 114 | 318.86 ± 15.06a AB | 271.42 ± 11.59b B | 247.60 ± 7.11bc C | 232.45 ± 8.42c B | 174.84 ± 6.89d B | 128.95 ± 7.70e C | |
Volumetric yield of carotenoids (mg/L) | DSM 5626 | 2.36 ± 0.30a A | 2.61 ± 0.30a A | 2.64 ± 0.28a A | 2.58 ± 0.11a A | 2.33 ± 0.17a A | 1.66 ± 0.30b A |
CMIFS 102 | 2.19 ± 0.14b A | 2.42 ± 0.24ab AB | 2.68 ± 0.08a A | 2.82 ± 0.38a A | 2.18 ± 0.05b AB | 1.36 ± 0.19c A | |
CMIFS 110 | 1.44 ± 0.20b B | 1.91 ± 0.22a B | 2.00 ± 0.09a B | 2.05 ± 0.18a B | 1.81 ± 0.35ab B | 0.98 ± 0.12c B | |
CMIFS 114 | 1.11 ± 0.06b B | 1.14 ± 0.04b C | 1.55 ± 0.05a C | 1.48 ± 0.20a C | 0.85 ± 0.03c C | 0.37 ± 0.02c C |
Different superscript letters (a, b, c) within the same row or different superscript letters (A, B, C, D, E) within the same column indicate significant (p < 0.05) differences in means. The mean values were compared using ANOVA one-way analyses of variance and Tukey’s test. Abbreviations: gd.m./L – grams of dry matter per liter of medium; µg/gd.m. – micrograms of carotenoids per liter of medium