Renewal rate of semicontinuous cultures of the microalga Porphyridium cruentum modifies phycoerythrin, exopolysaccharide and fatty acid productivity

The red microalga Porphyridium cruentum was cultured semicontinuously at a nutrient concentration of 16 mmol N· l −1, and seven rates of daily renewal of the culture volume (2%, 5%, 10%, 20%, 30%, 40% and 50%) in order to establish the optimal conditions for the production of the biotechnologically...

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