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Bioresources and Bioprocessing
Fig. 3 | Bioresources and Bioprocessing

Fig. 3

From: Influence of light absorption rate on the astaxanthin production by the microalga Haematococcus pluvialis during nitrogen starvation

Fig. 3

Astaxanthin concentration Casta (a) and content Wasta (b) of H. pluvialis during sudden nitrogen starvation of batch cultures exposed to PFD of 250 µmolhν m−2 s−1 with initial biomass concentrations \({\mathrm{C}}_{{\mathrm{x}}_{0}}\) equals to 0.21, 0.52, 1.39 and 2.21 kg m−3 as a function of cultivation time t. Data shown as mean ± SD, n = 3

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