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May 31, 2026Journal of CO2 Utilization0 citationsOpen Access

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

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FSForough Salehipour-BavarsadZSZeinab ShariatmadariMNMohammad Ali Nematollahi

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.

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/6a1bd0155783ba022b6fbf5bhttps://doi.org/10.1016/j.jcou.2026.103468
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