12 documents found, page 1 of 2
Assessment of cell disruption efficiency of Microcystis aeruginosa using differ...
Geada, Pedro; Loureiro, Luís Carlos Sá; Vasconcelos, V.; Vicente, A. A.; Fernandes, Bruno Daniel OliveiraThis research work was supported by the grant SFRH/BPD/98694/2013 (Bruno Fernandes) and SFRH/BD/52335/2013 (Pedro Geada) from Fundação para a Ciência e a Tecnologia (Portugal). Luís Loureiro is recipient of a fellowship supported by a doctoral advanced training (call NORTE-69-2015-15) funded by the European Social Fund under the scope of Norte2020 - Programa Operacional Regional do Norte. This study was support...
Potencial dos microrganismos fotossintéticos: uma luz sobre o presente e o futuro
Fernandes, Bruno Daniel Oliveira[Extrato] A investigação realizada na área do estudo dos microrganismos fotossintéticos (MFs) beneficiou, nos últimos anos, do impulso dado por uma estratégia ambiciosa, por parte da União Europeia, destinada ao desenvolvimento da bioeconomia, que passa pelo uso inovador de recursos biológicos sustentáveis de forma a suprir uma crescente procura por parte dos setores alimentar, energético e industrial. No mesmo...
Study of up- and downstream processes in Microcystis aeruginosa cultivation - O...
Fernandes, Bruno Daniel Oliveira; Geada, Pedro; Vicente, A. A.; Vasconcelos, V.BioTech 2017 and 7th Czech-Swiss Symposium with Exhibition; [Excerpt] The cyanobacterium Microcystis aeruginosa and the accumulation of its cyanotoxin microcystin (MC) have been responsible for several human/animal deaths and intoxication incidents. Therefore, the World Health Organization established recommendation values for MC in water, givingrisetoanincreasingdemandforMC’s analytical standards to be used as...
Comparison of harvesting methods for the cyanobacteria Microcystis aeruginosa
Geada, Pedro Miguel Macedo; Oliveira, Francisca; Loureiro, Luís; Esteves, D.; Teixeira, J. A.; Vasconcelos, V.; Vicente, A. A.BioTech 2017 and 7th Czech-Swiss Symposium with Exhibition; Microcystis aeruginosa is a wellknown cyanobacterium that has been spreading all over the world due to increased temperatures and eutrophication of water bodies caused by intensive anthropogenic activities. This toxin-producing microorganism is frequently responsible for diminishing water quality and causing intoxication of humans and animals. Due to t...
Pathway for cyanotoxin valorization: microscystin as case study
Geada, Pedro; Loureiro, Luís; Oliveira, F.; Esteves, D.; Teixeira, J. A.; Vasconcelos, V.; Vicente, A. A.; Fernandes, Bruno Daniel OliveiraBook of Abstracts of CEB Annual Meeting 2017; info:eu-repo/semantics/publishedVersion
Strategy development to optimize the production of a high added-value cyanotoxin
Geada, Pedro; Loureiro, Luís; Oliveira, Felisbela Maria Araújo; Esteves, D.; Teixeira, J. A.; Vasconcelos, V.; Vicente, A. A.[Excerpt] Microcystis aeruginosa is a well-known microcystin producer cyanobacterium that is commonly associated with water quality impairment and several animals/human intoxication occurrences. However, microcystin standards have applications in human and environmental risk assessment studies and recent research works highlight the huge potential of cyanotoxins to be applied as anticancer/antitumor drugs or an...
Assessment of synergistic interactions between environmental factors on Microcy...
Geada, Pedro; Pereira, Ricardo Nuno Correia; Vasconcelos, Vítor; Vicente, A. A.; Fernandes, Bruno Daniel OliveiraThe combined effect of four abiotic factors on Microcystis aeruginosa growth and toxin production was assessed by culturing the cyanobacterium under different light intensities (10190 mol photons·m 2·s 1), CO2 concentrations (010% (v/v)), temperatures (1540 °C), and pH values (6.59.5). Results indicate a significant influence caused by the synergistic effect of environmental factors over growth-related paramete...
Optimization of Microcystis aeruginosa cell disruption to enhance microcystin e...
Geada, Pedro; Fernandes, Bruno Daniel Oliveira; Vicente, A. A.; Vasconcelos, Vitor; Jewkes, Abi[Excerpt] Worldwide occurrence of cyanobacterium Microcystis aeruginosa and accumulation of its hepatotoxin microcystin (MC) have been responsible for several incidents, leading the World Health Organization to implement guideline values for this toxin in water thus boosting the demand for MC’s analytical standards. Furthermore, cyanotoxins are also considered promising anticancer/antitumor drugs as well as ant...
Enhancing extraction of food-grade pigments from the microalgae Chlorella Vulga...
Fraccola, G.; Fernandes, Bruno Daniel Oliveira; Geada, Pedro; Pataro, G.; Ferrari, G.; Vicente, A. A.; Pereira, Ricardo Nuno Correia[Excerpt] Introduction: The use of ohmic heating (OH) with the associated non-thermal effects due to the presence of an electrical field and frequency, has been suggested for extraction of compounds from biological matrices. Microalgae are considered as a very valuable source of compounds of interest for food sector (i.e. pigments, lipids, carbohydrates, and proteins) and the selection of extraction technique t...
Valorization of toxic cyanobacteria biomass - disruption efficiency assessment ...
Geada, Pedro Miguel Macedo; Escobar, Laura; Teixeira, J. A.; Vitor, Vasconcelos; Vicente, A. A.; Fernandes, Bruno Daniel OliveiraThe worldwide occurrence of hepatotoxic cyanobacterium Microcystis aeruginosa and accumulation of its toxin microcystin-LR, have been responsible for several human deaths and animal intoxication incidents. In recognition to its toxicity, the World Health Organization and several national governments established guideline values for this toxin in water, which gave rise to an increasing demand for microcystin′s a...