Tese
Metabólitos voláteis de Phormidium autumnale em diferentes sistemas de cultivo
Fecha
2018-12-13Autor
Santos, Andriéli Borges
Institución
Resumen
Microalgae are a potential source of biomolecules of commercial interest due to their
diversified metabolic profile capable of synthesizing different organic classes of
compounds. The Phormidium autumnale is a cyanobacteria with growth ability in the three
main cultivation types: photoautotrophic, mixotrophic and heterotrophic. The aim of this
thesis was to investigate the profile of microalgal volatile organic compounds (VOCs)
under different culture conditions. The results obtained in the experiments allowed the
identification of 53 volatile organic compounds in total. In the heterotrophic cultivation
using starch as carbon source, a total of 22 VOCs was identified and quantified, the least
productive experiment being in the volatile fraction; already the heterotrophic culture
supplemented with sucrose obtained a greater production with 34 identified compounds.
Different chemical classes (aldehydes, alcohols, ketones and hydrocarbons) were found in
the experiments, the majority were aldehydes and alcohols. The significant presence of
these chemical classes shows that the applicability of these volatile compounds produced
is extensive. Research on the profile of volatile organic compounds is required to
investigate microalgae in order to identify potential candidates for use in a new generation
of formulations of food, feed, biofuels, pharmaceuticals and raw material for the fine
chemicals industry. In parallel to this research, the review “Microalgal Biorefineries for
Bioenergy Production: Can We Move from Concept to Industrial Reality? which was
published in the Journal BioEnergy Research and is attached to this document.