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Bioresources and Bioprocessing
Fig. 5 | Bioresources and Bioprocessing

Fig. 5

From: Reducing self-shading effects in Botryococcus braunii cultures: effect of Mg2+ deficiency on optical and biochemical properties, photosynthesis and lipidomic profile

Fig. 5

Estimation of the optical path length as a function of the cell concentration required to develop a light attenuation profile consisting of an incident irradiance of 1050 µmol m−2 s−1 at the surface of the culture and an irradiance value in the bottom (darkest zone) equivalent to the compensation irradiance (Ek) for the cells cultivated with different MgSO4 concentrations. Ek values for each group were calculated using the model of Eilers and Peeters, 1988 employing the ChlA Rapid Light Curves data. A horizontal planar cultivation system irradiated with perpendicular direct polychromatic cool white LED light was assumed

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