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The effect of light intensity on cell density and the red pigment content in the 1-week culture spent medium (n = 3, ±SE)
| Light intensity [μmol photons m−2 s−1] | |||
|---|---|---|---|
| 200 | 80 | 40 | |
| Number of cells [×106] | 31.15 ± 0.25 | 28.78 ± 0.29 | 25.96 ± 0.56 |
| Absorbance [505 nm] | 0.415 ± 0.04 | 0.348 ± 0.06 | 0.124 ± 0.07 |
