Currently, there is an increase in CO₂ concentration in the atmosphere due to the many anthropogenic activities. This increase comes along with global consequences on an environmental, social, and economic scale. Due to these consequences, there is an interest in developing alternatives for CO₂ capture, including microorganisms, for this purpose. The present study researches the microalgal strains Botryococcus braunii and Scenedesmus sp. to capture CO₂ and the production of carbohydrates, proteins, and lipids, with 0.03 % (CO₂ concentration in air), 10 %, and 20 % CO₂ supply. It was found that B. braunii growth was affected by the highest CO₂ concentration since the results showed biomass production 0.64 g L⁻¹, 0.41 g L⁻¹, and 0.26 g L⁻¹ with air, 10 %, and 20 % CO₂, respectively. On the other hand, Scenedesmus sp. showed an increase in biomass, carbohydrates, and protein production as the CO₂ concentration increased, reaching the highest values of 1.95 g L⁻¹, 422.72 mg L⁻¹, and 259.39 mg L^-1 at 20 % CO₂, respectively. Additionally, the CO₂ removal efficiency was highest in the culture of B. braunii and Scenedesmus sp. at 10 % CO₂, reaching a value of 6.78 % and 6.60 %, respectively. This study shows that each microalga strain is directly affected by biomass growth and biomass composition depending on the strain. Furthermore, our study showed that microalgae could be an excellent alternative to forced CO₂ capture, where the CO₂ from flue gas can be driven from an industrial chimney to the photo-bioreactors.

当前，由于许多人为活动，大气中的CO ₂浓度增加。这种增长伴随着对环境，社会和经济规模的全球影响。由于这些后果，因此有兴趣为此目的开发包括微生物在内的CO ₂捕集替代品。本研究研究了微藻菌株布鲁氏葡萄球菌和Scenedesmus sp。捕获CO ₂以及碳水化合物，蛋白质和脂质的产生，其中0.03％（空气中的CO ₂浓度），10％和20％的CO ₂供应。发现布朗尼双歧杆菌生长受到最高CO ₂浓度，因为该结果表明生物质产量0.64克L- ^-1，0.41克L- ^-1 0.26克L，和^-1用空气，10％，和20％的CO ₂，分别。另一方面，Scenedesmus sp。表明在生物质，碳水化合物和蛋白质生产的增加作为CO ₂浓度的增加，达到1.95克L-最高值^-1，422.72毫克的L ^-1，和259.39毫克的L ^-1，在20％CO ₂分别。此外，在B. braunii的培养中，CO ₂去除效率最高。和Scenedesmus sp。CO ₂含量为10％时，分别达到6.78％和6.60％。这项研究表明，每种微藻菌株都直接受到生物量增长和生物量组成的影响，具体取决于菌株。此外，我们的研究表明，微藻可能是强制CO ₂捕集的极佳替代品，在这种方法中，烟道气中的CO ₂可以从工业烟囱驱至光生物反应器。