Bicarbonate-mediated CO2 utilization in green microalgae: Multivariate interaction engineering for tunable biodiesel and nutritional lipid outputs

Q: What does this research mean for the field?

Optimizing the synergy between sodium bicarbonate, light, and pH in green microalgae induces autosporulation, increases cell density 5.7-fold, and produces tunable lipids that meet ASTM biodiesel and WHO nutritional standards while replacing energy-intensive CO2 sparging. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Forough Salehipour-Bavarsad; Zeinab Shariatmadari; Mohammad Ali Nematollahi; Majid Azizi

doi:10.1016/j.jcou.2026.103468

May 28, 2026Journal of CO2 UtilizationOpen Access

Bicarbonate-mediated CO2 utilization in green microalgae: Multivariate interaction engineering for tunable biodiesel and nutritional lipid outputs

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Key Points

This research aims to optimize bicarbonate-mediated carbon utilization in green microalgae for enhanced biodiesel and nutritional lipid production.
RSM-CCD design was employed to optimize NaHCO₃, light, and pH for microalgal growth.
Carbon capture and utilization (CCU) methods were utilized, enhancing biomass density significantly.
Biodiesel and nutritional lipid outputs were analyzed against ASTM and WHO standards.
Cell density increased by 5.7-fold due to optimized carbon capture utilization.
Tunable lipid outputs met both ASTM biodiesel and WHO nutritional standards, indicating high quality.
Bicarbonate CCU effectively replaced traditional CO₂ sparging methods, reducing energy consumption.

Implication

Study optimized carbon capture and utilization in green microalgae, suggesting enhanced biodiesel and nutrition quality.

Abstract

• RSM-CCD optimized NaHCO₃–light–pH synergies for growth and carbon efficiency. • Optimized CCU induced autosporulation, boosting cell density 5.7-fold. • Tunable lipids met ASTM biodiesel and WHO nutritional standards. • Bicarbonate CCU replaces CO₂ sparging, enabling low-energy carbon deliver.

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Cite This Study

Salehipour-Bavarsad et al. (2026) studied this question.

synapsesocial.com/papers/6a1bd0155783ba022b6fbf5b https://doi.org/10.1016/j.jcou.2026.103468

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Bicarbonate-mediated CO2 utilization in green microalgae: Multivariate interaction engineering for tunable biodiesel and nutritional lipid outputs

Key Points

Implication

Abstract

Discussion

Cite This Study

Bicarbonate-mediated CO2 utilization in green microalgae: Multivariate interaction engineering for tunable biodiesel and nutritional lipid outputs

Key Points

Implication

Abstract

Discussion

Cite This Study

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