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Related Experiment Video

Updated: May 27, 2026

Optimize Flue Gas Settings to Promote Microalgae Growth in Photobioreactors via Computer Simulations

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Published on: October 1, 2013

Optimization of microalgal productivity using an adaptive, non-linear model based strategy.

H De la Hoz Siegler¹, W C McCaffrey, R E Burrell

¹Chemical and Materials Engineering Department, University of Alberta, Edmonton, Canada T6G 2V4.

Bioresource Technology

|November 29, 2011

Summary

Optimized heterotrophic cultures of Auxenochlorella protothecoides significantly boosted biomass and oil production. This microalgal optimization offers a superior source for biodiesel and single-cell oil applications.

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Published on: December 19, 2019

Area of Science:

Biotechnology
Microalgal Cultivation
Renewable Energy

Background:

Microalgae are a promising source for biofuels and oleochemicals.
Efficient biomass and lipid production are crucial for economic viability.
Auxenochlorella protothecoides is an oleaginous microalga with potential for industrial applications.

Purpose of the Study:

To optimize biomass and oil productivities in heterotrophic cultures of Auxenochlorella protothecoides.
To achieve high cell densities and lipid content for enhanced biofuel precursor production.

Main Methods:

Employed a non-linear model-based approach for process optimization.
Conducted heterotrophic cultivation of Auxenochlorella protothecoides.
Analyzed biomass, cell density, oil content, and lipid productivity.

Main Results:

Achieved a 10-fold increase in average biomass productivity and a 16-fold increase in maximum productivity compared to batch cultures.
Reached a final cell density of 144 g/L (dry weight) with 49.4% w/w oil content.
Attained a maximum lipid productivity of 20.16 g/L·d at an average cell density of 86 g/L, surpassing previously reported values.

Conclusions:

The optimized microalgal culture demonstrates exceptional productivity for biodiesel production.
High-quality oil composition makes Auxenochlorella protothecoides a valuable source for biodiesel.
This strain shows potential as a source of single-cell oil for diverse industrial applications.