Browsing by Author "Squillaci, G."
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- Bioactive compounds through anaerobic digestion of heterotrophic microalgae residuesPublication . Morana, A.; Squillaci, G.; Santos, Carla A.; La Cara, F.; Marques, Isabel PaulaSeveral important biomolecules are available into anaerobically digested effluents that were obtained from the biodiesel production process using heterotrophically grown microalga Chlorella protothecoides. Defatted microalgae residues and crude glycerol may undergo anaerobic digestion, separately and in admixture, providing methane/hydrogen and a digestate exploitable for agriculture applications. Furthermore, industrial interesting bioactive compounds such as polyphenols provided with antioxidant activity can be obtained. Anaerobic process offers a promising chance and can be advantageously combined with algae lipid-extraction techniques in order to make it more sustainable.
- Fermentation of xylose-rich substrates by the haloarchaeon halorhabdus utahensis towards high value-added bioproducts [Poster]Publication . Alves, Luís; Paixão, Susana M.; Silva, Tiago; Squillaci, G.; Serino, I.; Morana, A.ABSTRACT: Research that focuses on the use of high value-added bioproducts for industrial applications is essential for the implementation of sustainable approaches forecasting a bio-based economy. The effective use of biomass feedstocks, particularly lignocellulosic materials, in large-scale applications will evolve from innovative research aimed at the development and implementation of biorefineries established for specific feedstocks. In this context, an important step is the concept of fractionating biomass into its core constituents (cellulose, hemicellulose and lignin) for further enhanced valorization. Contrary to the valorization of cellulose fraction, which has been extensively studied, there is a gap in the valorization of the hemicellulose fraction (xylose- rich substrate) towards bioproducts. In this context, the present work aims to explore the ability of the haloarchaeon Halorhabdus utahensis (DSM-12940) to ferment xylose (or xylose-rich substrates) to high added-value bioproducts, such as pigments, exopolysaccharides (EPS) and polyhydroxyalkanoates (PHAs).