Mathematical Modeling of Carotenoid Extraction from Brown Algae S.Miyabei

The thesis concerns the conditions optimization for extracting carotenoids and fucoxanthin from brown algae S. miyabei by the math modelling method. The authors studied the influence of the following parameters: the raw materials ratio – extractant, extractions multiplicity, process duration and temperature, grinding degree of raw materials. The multifactorial experiment revealed that the extraction multiplicity and time were the determining factors affecting the carotenoids and fucoxanthin yield. The regression analysis results, particularly R 2 , demonstrated that the obtained linear equations adequately described the process regularities of obtaining extractives, lipids and pigments, carotenoids and fucoxanthin from brown algae S. miyabei, depending on the raw material–extractant ratio, the extractions multiplicity, duration, temperature, and particle size. Verification of the presented model with factors parameters beyond the parameters used in obtaining the equations confirmed the possibility and adequacy of its application to describe the extraction and yields prediction of extractives, lipids and pigments, carotenoids and fucoxanthin from the brown algae S. miyabei.