Haematococcus

Unlike traditional agriculture, Haematococcus cultivation does not require soil. It is produced in high-tech closed photobioreactors or open ponds where all physical and chemical parameters are strictly controlled to maximize the biomass yield and pigment concentration.

The biological cycle consists of two phases: the green motile vegetative stage and the red encysted stage. The transition is induced by environmental stress, such as nitrogen depletion or high light intensity, which triggers the accumulation of the valuable red pigment.

Climate requirements involve maintaining a water temperature of 20 to 25 degrees Celsius during the growth phase. Proper aeration and light distribution within the reactor are essential to prevent cell shading and maintain high photosynthesis rates.

The final product is used in various sectors, including aquaculture to provide natural coloration for salmonids, human nutrition as a dietary supplement, and the cosmetics industry for skin protection formulations.

The most critical threat to Haematococcus production is biological contamination. Invasive species such as protozoa, fungi, and faster-growing algae can rapidly outcompete the culture, leading to significant biomass loss within the production unit.

Effective management of production systems requires rigorous sterilization protocols. Without these, the susceptibility of the culture to infectious agents can jeopardize the profitability of the entire facility due to the collapse of the algal population.

Harvesting involves concentrating the algae from the growth medium using high-speed centrifugation or specialized filtration systems. Post-harvest processing includes cell disruption, which is necessary to access the astaxanthin stored within the thick cell walls.