![]() ![]() ![]() This is mainly because repeated-batch cycles start with N-starved cells. The base case yields are in line with the yields observed in current state-of-the-art outdoor TAG production.įor continuous light, an optimized batch process will always result in higher TAG yield on light compared to an optimized repeated-batch process. TAG yields on light, for batch, from 0.12 (base case at high light) to 0.49 g molph (-1) (at low light and with improved strain) and, for repeated-batch, from 0.07 (base case at high light) to 0.39 g molph (-1) (at low light with improved strain and optimized repeated-batch settings). The model, which successfully described both strategies, was used to identify potential improvements for both batch and repeated-batch and compare the two strategies on optimized TAG yields on light (amount of TAGs produced per mol of supplied PAR photons). to nitrogen (N) starvation and N-rich medium replenishment were studied in lab-scale batch and repeated-batch (part of the culture is periodically harvested and N-rich medium is re-supplied) cultivations under continuous light, and condensed into a mechanistic model. For this, physiological responses of Nannochloropsis sp. The operational strategy affects TAG productivity but a systematic comparison between different strategies is lacking. For a commercially feasible microalgal triglyceride (TAG) production, high TAG productivities are required. ![]()
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