Biochemical trade-offs and opportunities of commercialized microalgae cultivation under increasing carbon dioxide.

Microalgae's exceptional photosynthetic prowess, CO adaptation, and high-value bioproduct accumulation make them prime candidates for microorganism-based biorefineries. However, most microalgae research emphasizes downstream processes and applications rather than fundamental biomass and biochemical balances and kinetic under the influence of greenhouse gases such as CO. Therefore, three distinctly different microalgae species were cultivated under 0% to 20% CO treatments to examine their biochemical responses, biomass production and metabolite accumulations.

Distinctive correlations between cell concentration and cell size to microalgae biomass under increasing carbon dioxide.

Carbon capture and storage (CCS) via microalgae cultivations is getting renewed interest as climate change mitigation effort, owing to its excellent photosynthetic and CO fixation capability. Microalgae growth is monitored based on their biomass, cell concentrations and cell sizes. The key parametric relationships on microalgae growth under CO are absent in previous studies and this inadequacy hampers the design and scale-up of microalgae-based CCS.