182 documents found, page 1 of 19
The Ocean’s pharmacy: Health discoveries in marine algae
Silva, Mélanie; Avni, Dorit; Varela, João; Barreira, LuísaNon-communicable diseases (NCDs) represent a global health challenge, constituting a major cause of mortality and disease burden in the 21st century. Addressing the prevention and management of NCDs is crucial for improving global public health, emphasizing the need for comprehensive strategies, early interventions, and innovative therapeutic approaches to mitigate their far-reaching consequences. Marine organi...
Shedding light on the hidden benefit of Porphyridium cruentum culture
Liberti, Davide; Imbimbo, Paola; Giustino, Enrica; D’Elia, Luigi; Silva, Mélanie; Barreira, Luísa; Monti, Daria MariaMicroalgae can represent a reliable source of natural compounds with different activities. Here, we evaluated the antioxidant and anti-inflammatory activity of sulfated exopolysaccharides (s-EPSs) and phycoerythrin (PE), two molecules naturally produced by the red marine microalga Porphyridium cruentum (CCALA415). In vitro and cell-based assays were performed to assess the biological activities of these compoun...
Dunaliella viridis TAV01: A halotolerant, Protein-Rich Microalga from the Algar...
Bombo, Gabriel; Cristofoli, N. L.; Santos, Tamara; Schüler, Lisa M.; Maia, Inês Beatriz; Pereira, Hugo; Barreira, Luísa; Varela, JoãoTolerance to harsh environmental conditions, high growth rates and an amino acid profile adequate for human consumption are beneficial features observed in Dunaliella viridis TAV01, a novel strain isolated from a salt pond in the Algarve, Portugal. TAV01 was identified down to the species level by maximum likelihood and Bayesian phylogenetic analyses of the ribosomal internal transcribed spacers one and two reg...
Two-stage lipid induction in the microalga tetraselmis striata CTP4 upon exposu...
Monteiro, Ivo; Schüler, Lisa M.; Santos, Eunice; Pereira, Hugo; Schulze, Peter S.C.; Florindo, Claudia; Varela, João; Barreira, LuísaTetraselmis striata CTP4 is a euryhaline, robust, fast-growing microalga suitable for wastewater treatment and industrial production. Lipid production was induced through a two-stage cultivation strategy: a 1st stage under standard growth-promoting conditions (100 mu mol photons m- 2 s- 1, salinity 36 ppt and 20 degrees C) to achieve high biomass concentration and a 2nd stage of 6 days for lipid induction by th...
Pharmaceuticals removal from wastewater with microalgae: a pilot study
Pereira, André; Morais, Etiele Greque; Silva, Liliana; Pena, Angelina; Freitas, Andreia; Teixeira, Margarida Ribau; Varela, João; Barreira, LuísaUrban wastewaters contain pharmaceuticals that are not appropriately removed in conventional wastewater treatments, limiting treated water reuse. Microalgae have been shown to remove pharmaceuticals from urban wastewater in laboratory trials, but few studies have been conducted under natural conditions. In this work, pharmaceutical removal was assessed in a pilot-scale microalgal tertiary wastewater treatment i...
Fire behaviour of mortars with portland cement and residual diatomaceous earth
Magalhães, Leandro; Ferreira, Débora; Zolin, Renan Calvo; Alves, Matheus Henrique; Barreira, Luísa; Luso, Eduarda; Mesquita, L.M.R.; Óscar, LimaThe high pollution levels produced by the manufacturing of conventional Portland cement have motivated several studies in an attempt to modernize this process with alternative binders and the conscious use of natural resources. The correct treatment of residues has become a matter of great concern. The project “BacchusTech” aims to reuse diatomaceous earth from wine filtrations, introducing them into the compos...
Fire behaviour of mortars with portland cement and residual diatomaceous earth
Magalhães, Leandro; Zolin, Renan Calvo; Alves, Matheus Henrique; Barreira, Luísa; Ferreira, Débora; Luso, Eduarda; Mesquita, L.M.R.; Óscar, LimaThe high pollution levels produced by the manufacturing of conventional Portland cement have motivated several studies in an attempt to modernize this process with alternative binders and the conscious use of natural resources. The correct treatment of residues has become a matter of great concern. The project “BacchusTech” aims to reuse diatomaceous earth from wine filtrations, introducing them into the compos...
Fire behaviour of wood and wood-based composite panels towards the development ...
Alves, Matheus; Mesquita, L.M.R.; Piloto, P.A.G.; Ferreira, Débora; Barreira, Luísa; Mofreita, FilipeThe use of sustainable natural resources has been practiced by the construction sector as a means to reduce energy demand and increase the efficiency of buildings. In this sense, wood and wood-based materials are alternative and renewable material sources that can be effectively used in building elements, such as doors and partition walls, which are required to provide adequate thermal, acoustic, and fire resis...
The osteogenic and mineralogenic potential of the microalgae Skeletonema costat...
Carletti, Alessio; Rosa, Joana; Pes, Katia; Borges, Inês; Santos, Tamara; Barreira, Luísa; Varela, João; Pereira, Hugo; Cancela, M. LeonorSkeletal disorders are problematic aspects for the aquaculture industry as skeletal deformities, which affect most species of farmed fish, increase production costs and affect fish welfare. Following recent findings that show the presence of osteoactive compounds in marine organisms, we evaluated the osteogenic and mineralogenic potential of commercially available microalgae strains Skeletonema costatum and Tet...
Biomass valorization via pyrolysis in microalgae-based wastewater treatment: ch...
de Morais, Etiele Greque; da Silveira, Jéssica Teixeira; Schüler, Lisa Maylin; de Freitas, Barbara Catarina Bastos; Costa, Jorge Alberto VieiraMicroalgae-based wastewater treatment technology is a sustainable and environmentally friendly alternative to conventional treatment systems. The biomass produced during microalgae-based wastewater treatment can be valorized via pyrolysis to generate multiple valuable products, such as biochar, bio-oil, and pyrolytic gas. This study summarizes the potential of pyrolysis for valorizing microalgal biomass produce...