TY - JOUR AU - González-Falfán, Kevin A AU - Guerrero-Barajas, Claudia AU - Badillo-Corona, Jesús A AU - Fernández-Linares, Luis C PY - 2021/06/02 Y2 - 2024/03/29 TI - Production of metabolites from Scenedesmus sp. and a microalgal consortium cultured in unconventional media JF - Ciencias Marinas JA - Cienc. Mar. VL - 47 IS - 2 SE - Research Article DO - 10.7773/cm.v47i2.3138 UR - https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/3138 SP - 89–103 AB - <p>Growth comparisons were made between a microalgal consortium and <em>Scenedesmus</em> sp. cultivated in treated wastewater (TWw) enriched with 1 mL·L<sup>–1</sup> Bayfolan Forte fertilizer (BM), TWw enriched with (NH<sub>4</sub>)<sub>2</sub>HPO<sub>4</sub> (PAM), TWw enriched with NH<sub>4</sub>HCO<sub>3</sub> (BCAM), tap water with piggery wastewater (PEM), tap water with piggery wastewater digestate (PDM), and raw wastewater (Ww). Nitrogen (N) content in the media, except for TWw, was adjusted to 80 mg·L<sup>–1</sup> N (NH<sub>4</sub><sup>+</sup>-N and NO<sub>3</sub><sup>–</sup>-N). Unconventional low-cost media with lower nutrient contents (BM and TWw) showed adequate productions of biomass and lipids. PEM was the most advantageous medium, showing the highest biomass productivity with the consortium (191.25 ± 6.25 g·L<sup>–1</sup>·d<sup>–1</sup>) and a lipid productivity of 36.75 ± 9.90 mg·L<sup>–1</sup>·d<sup>–1</sup>. The fatty acid profile was composed mainly of C16 and C18. PAM, PEM, and PDM showed a higher proportion of saturated fatty acids (60%–69%), whereas the composition of unsaturated fatty acids was in the range of 31% to 38%. In PEM and PDM the removal of NH<sub>4</sub><sup>+</sup> was 100%; however, there were NH<sub>4</sub><sup>+</sup> losses (as NH<sub>3</sub>) due to volatilization (46%). Unconventional media, especially Ww, are an option for growing microalgae.</p> ER -