Dynamic Modeling and Estimation of Uncharacterized Reactions in H. pluvialis Production Scale Cultivation

This paper addresses the modeling of astaxanthin accumulation in the microal-gae Haematococcus pluvialis, a well-known source of natural astaxanthin, under fluctuating environmental conditions. For biomass growth and astaxanthin accumulation first principles models under sufficient nutrient concentration and high incident light exposure are derived. The obtained models are validated using measurement data of an outdoor production plant, and are the basis for implementing an extended Kalman Filter (EKF) for state and unknown reaction rate estimation.