| Autor: |
de Morais, Etiele Greque, Nunes, Itaciara Larroza, Druzian, Janice Izabel, de Morais, Michele Greque, da Rosa, Ana Priscila Centeno, Costa, Jorge Alberto Vieira |
| Zdroj: |
Biomass Conversion & Biorefinery; Mar2024, Vol. 14 Issue 6, p7305-7313, 9p |
| Abstrakt: |
This study investigated the growth of microalgae Spirulina sp. LEB 18 in medium supplemented with crude glycerol to evaluate the biochemical composition of the biomass and its productivity during 72 h of culture. The microalgae cultivated in medium supplemented with 2.5 g L−1 glycerol presented a fourfold higher cell productivity (28.04 mg L−1 h−1) than the control culture, reaching a maximum biomass concentration of 1.08 g L−1 in 36 h. Among the evaluated compounds, proteins were predominant in the biomass throughout the crop, and at the highest concentration of biomass (36 h), the yield was 384.15 mg L−1. The composition of unsaturated fatty acids increased approximately twofold with the organic carbon source (493.53 mg g−1) compared to the control. The predominant fatty acid was oleic acid, reaching 336.00 mg g−1, in the culture supplemented with glycerol. The increase in productivity provides a cost reduction and increases the feasibility of obtaining microalgal biomass products, including biofuels. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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