Encontrados 19 documentos, a visualizar página 1 de 2
Prokaryotic community structure and auxin biosynthesis in early developmental s...
Cortez, Francisco; Nanetti, Enrico; Chaves, Guilherme; Pereira, André C.; Caria Mendes, Madalena; Oliveira, Inês; Leuzzi, Daniela; Abreu, HelenaIntroduction: Algal-microbiome interactions are considered pivotal for host health and development. Current understanding of the diversity and function of algal-associated microorganisms in aquaculture settings remains limited, preventing the development of microbiome-based solutions for sustainable algal growth.Methods: We employed cultivation-dependent and -independent approaches to determine the structure of...
Simplified, high yielding extraction of xylan/xylo-oligosaccharides from palmar...
Coelho, Diogo; Costa, Diogo Félix; Barroca, Mário; Cunha, Sara Alexandra; Pintado, Maria Manuela; Abreu, Helena; Martins, Margarida; Collins, TonyThe complex plant cell wall heteropolysaccharide xylan, and its breakdown products xylo-oligosaccharides and xylose, are value-added compounds with a plethora of potential applications in diverse areas. They are nonetheless currently poorly exploited, with a major bottleneck being the unavailability of efficient, low-cost, high-yield production processes. The major objective of the present study is to identify ...
Novel process for extraction of xylan and xylo-oligosaccharides from Palmaria p...
Coelho, Diogo Francisco Mauricio; Barroca, Mário Jorge Faria; Abreu, Helena; Martins, Margarida; Collins, Tony[Excerpt] Introduction Xylan, the second most abundant plant polysaccharide on Earth, is a component of numerous plants including macroalgae. This polysaccharide, and in particular its breakdown products, xylo-oligosaccharides and xylose, are of much industrial interest with potential for application in the food, feed, industrial, chemical, pharmaceutical, and medical fields. Nevertheless, these compounds remai...
Simplified, high yielding extraction of xylan/xylo-oligosaccharides from palmar...
Coelho, Diogo Francisco Mauricio; Costa, Diogo Felix; Barroca, Mário; Cunha, Sara Alexandra; Pintado, Maria Manuela; Abreu, Helena; Martins, MargaridaThe complex plant cell wall heteropolysaccharide xylan, and its breakdown products xylo-oligosaccharides and xylose, are value-added compounds with a plethora of potential applications in diverse areas. They are nonetheless currently poorly exploited, with a major bottleneck being the unavailability of efficient, low-cost, high-yield production processes. The major objective of the present study is to identify ...
Looking at the potential of marine macroalgae supplementation to afford neuropr...
Neto, Ana; Brandão, Fátima; Almeida, Armando; Abreu, Helena; Pousão-Ferreira, Pedro; Cesário, Rute; Pacheco, Mário; Pereira, PatríciaBackground: Marine macroalgae have potential as a source of many natural compounds with health benefits [1], but their use to mitigate aquatic contaminants bioaccumulation in fish and resultant toxicity is an underexplored research topic. Objective: Asses if a marine macroalgae-enriched diet can provide neuroprotection Diplodus sargus when exposed to waterborne inorganic mercury (iHg), namely by reducing bioacc...
Chemical composition and antioxidant potential of five algae cultivated in full...
Nova, Paulo; Pimenta-Martins, Ana; Maricato, Élia; Nunes, Cláudia; Abreu, Helena; Coimbra, Manuel A.; Freitas, Ana Cristina; Gomes, Ana MariaIn this study, the chemical composition and antioxidant profile of five edible macroalgae, Fucus vesiculosus, Palmaria palmata, Porphyra dioica, Ulva rigida, and Gracilaria gracilis, cultivated in fully controlled closed systems, were determined. Protein, carbohydrates, and fat contents ranged between 12.4% and 41.8%, 27.6% and 42.0%, and 0.1% and 3.4%, respectively. The tested seaweeds presented considerable a...
Red seaweeds strengthening the nexus between nutrition and health: phytochemica...
Ferreira, João; Hartmann, Anja; Martins-Gomes, Carlos; Nunes, Fernando M.; Souto, Eliana B.; Santos, Dario L.; Abreu, Helena; Pereira, RuiThe red seaweeds Grateloupia turuturu and Porphyra umbilicalis are commonly used as human food, mainly in East Asia, being valuable nutritional sources. However, studies focusing on their composition and bioactivities are scarce. Thus, G. turuturu and P. umbilicalis hydroethanolic and water (infusion and decoction) extracts were prepared to characterize their bioactive compounds; assess antioxidant activity aga...
Improving agar properties of farmed Gracilaria gracilis by using filtered sunlight
Silva-Brito, Francisca; Pereira, Sara Gonçalves; Rocha, Cristina M. R.; da Costa, Elisabete; Domingues, M. Rosário; Azevedo, Andreina; Kijjoa, AnakeThe effects of different light spectra on agar yield, composition and gel properties, pigment content and antioxidant activity of Gracilaria gracilis cultivated in a land-based IMTA-system were investigated. Total phenol content, antiradical activity and lipid peroxidation inhibitory capacity in the residue obtained from G. gracilis agar extraction (agar waste, AW) were also investigated. Gracilaria gracilis wa...
Physical processing or supplementation of feeds with phytogenic compounds, algi...
Valente, Luisa M.P.; Batista, Sónia; Ribeiro, Catarina; Pereira, Ricardo; Oliveira, Beatriz; Garrido, Inês; Baião, Luís F.; Tulli, FrancesaThis study assessed both the effectiveness of a physical-mechanical rupture method and the ability of feed additives (phytogenic compounds, alginate oligosaccharide and nucleotides) to enhance the utilization of G. gracilis by European seabass. A commercial-based diet was used as control diet (CTRL) and compared with five isoproteic (53.5% Dry matter, DM) and isolipidic (14.9% DM) diets containing 8% of G. grac...
Use of technological processing of seaweed and microalgae as strategy to improv...
Batista, Sónia; Pintado, Manuela; Marques, Alexandra; Abreu, Helena; Silva, Joana L; Jessen, Flemming; Valente, Luísa M.P.Algae are natural sources of nutrients, but the presence of anti-nutritional factors often compromises nutrient apparent digestibility coefficients (ADCs) in several fish species. In this study, physical-mechanical and enzymatic technological processing was applie to two seaweeds (Gracilaria gracilis and Ulva rigida) and three microalgae (Nannochloropsis oceanica, Chlorella vulgaris, and Tetraselmis sp.) in ord...