Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Biostimulant potential of the microalgae Tetradesmus obliquus cultivated in airlift photobioreactors as a coproduct of biofuels generation
Submission Author:
Kauê Melenek , PR
Co-Authors:
Kauê Melenek, Diego Corrêa, Ana Júlia Ferreira Ganda, Murilo Gasparin Rampi, Gabriela Conor Figueiredo, Anne Defranceschi Oliveira, Pedro Mussi, Victor Dobis Barros, André Bellin Mariano, Vanessa Kava, JOSÉ VIRIATO COELHO VARGAS
Presenter: Kauê Melenek
doi://10.26678/ABCM.COBEM2023.COB2023-0895
Abstract
Microalgae have great potential in biofuels production, such as biohydrogen, bioethanol, and biodiesel. Technical-scientific knowledge about these microorganisms increase every year, but it is also necessary to make biomass and bioproducts production processes viable, per developing the concept of biorefinery. Regarding microalgae, biomass utilization enables several applications such as in agriculture, with potential for partial substitution of synthetic fertilizers. Therefore, the aim of the present work was to evaluate the biostimulant activity of the microalgae Tetradesmus obliquus cultivated in airlift photobioreactors over lettuce seeds. The biomass was subjected to extraction generating the extract that was used in soil applications germinated with lettuce seedlings (Lactuca sativa). fresh and dry mass of the lettuce plants were measured to determine biostimulating activity and lipid levels were analyzed to correlate the concept of biorefinery from microalgal biomass. Regardless of being preliminary, the results shows that the microalgal biomass used for obtaining biostimulant extracts have biostimulating activity related to the overall growth of the plants and does not interfere with the later utilization of biomass for biofuels production. For this reason, it is expected to contribute to technical and financial viability increase, aiming the production of biofuels and other products from microalgal biomass.
Keywords
microalgae, Biostimulant, Biofuels, Biomass, photobioreactor
