Microalgae growth rate multivariable mathematical model for biomass production.

Area of Science:

• Biotechnology
• Environmental Science
• Bioremediation

Background:

• Microalgae offer a sustainable solution for greenhouse gas reduction and water remediation.
• They are a source of high-value products like pigments, biofuels, and bioactive compounds.
• Optimizing microalgae biomass production is key to the economic viability of these applications.

Purpose of the Study:

• To investigate the potential of Chlorella and Tetradesmus microalgae for producing UV-absorbing substances.
• To develop a mathematical model for characterizing microalgae biomass production.
• To analyze the influence of light intensity, temperature, and nutrient consumption on growth rates.

Main Methods:

• A mathematical model was developed to simulate microalgae biomass production.
• The model incorporated light intensity, temperature, and nutrient consumption.
• MATLAB software was used to program the model and determine specific growth rates.

Main Results:

• Optimal growth conditions were determined for Chlorella (36°C, <787 μmol/m²s) and Tetradesmus (23°C, <150 μmol/m²s).
• The specific growth rate was found to be dependent on the interplay of the three modeled parameters.
• The study successfully characterized biomass production for both microalgae genera.

Conclusions:

• This research supports the use of microalgae biomass for developing novel topical applications.
• Microalgae-derived products can offer healthier and more environmentally friendly alternatives to commercial options.
• The findings contribute to advancing microalgae technology for commercial and environmental benefits.