22 documents found, page 1 of 3
Seaweed as a natural source against phytopathogenic bacteria
Vicente, Tânia F.L.; Félix, Carina; Félix, Rafael; Valentão, Patrícia; Lemos, Marco F.L.Plant bacterial pathogens can be devastating and compromise entire crops of fruit and vegetables worldwide. The consequences of bacterial plant infections represent not only relevant economical losses, but also the reduction of food availability. Synthetic bactericides have been the most used tool to control bacterial diseases, representing an expensive investment for the producers, since cyclic applications ar...
Seaweed extracts to control postharvest phytopathogenic fungi in Rocha pear
Toledo, Eloísa; Félix, Carina; Vicente, Tânia F. L.; Augusto, Ana; Félix, Rafael; Toledo, Bernardo; Silva, Joana; Trindade, Carina; Raimundo, DélioFungal infections cause losses amounting to between 20 and 25% of the fruit industry’s total outcome, with an escalating impact on agriculture in the last decades. As seaweeds have long demonstrated relevant antimicrobial properties against a wide variety of microorganisms, extracts from Asparagopsis armata, Codium sp., Fucus vesiculosus, and Sargassum muticum were used to find sustainable, ecofriendly, and saf...
Stress response markers in the blood of São Tomé green sea turtles (Chelonia my...
Morão, Inês F.C.; Lemos, Marco F.L.; Félix, Rafael; Vieira, Sara; Barata, Carlos; Novais, Sara C.Metals are persistent worldwide being harmful for diverse organisms and having complex and combined effects with other contaminants in the environment. Sea turtles accumulate these contaminants being considered good bioindicator species for marine pollution. However, very little is known on how this is affecting these charismatic animals. Sâo Tomé and Príncipe archipelago harbours important green sea turtle (Ch...
A biorefinery approach to the biomass of the seaweed Undaria pinnatifida (Harve...
Ferreira, Carolina A. M.; Félix, Rafael; Félix, Carina; Januário, Adriana P.; Alves, Nuno; Novais, Sara C.; Dias, Juliana R.; Lemos, Marco F.L.Brown seaweeds are recognized sources of compounds with a wide range of properties and applications. Within these compounds, phlorotannins are known to possess several bioactivities (e.g., antioxidant, anti-inflammatory, and antimicrobial) with potential to improve wound healing. To obtain phlorotannins enriched extracts from Undaria pinnatifida, a biorefinery was set using lowcost industry-friendly methodologi...
Bioactive carbohydrate polymers: Between myth and reality
Drira, Maroua; Hentati, Faiez; Babich, Olga; Sukhikh, Stanislas; Larina, Viktoria; Sharifian, Sana; Homai, Ahmad; Fendri, Imen; Lemos, Marco F.L.Polysaccharides are complex macromolecules long regarded as energetic storage resources or as components of plant and fungal cell walls. They have also been described as plant mucilages or microbial exopolysaccharides. The development of glycosciences has led to a partial and difficult deciphering of their other biological functions in living organisms. The objectives of glycobiochemistry and glycobiology are c...
Uncovering the bioactivity of Aurantiochytrium sp.: a comparison of extraction ...
Reboleira, João; Félix, Rafael; Vicente, Tânia F. L.; Januário, Adriana P.; Félix, Carina; Melo, Marcelo M.R. de; Silva, Carlos M.; Ribeiro, Ana C.Aurantiochytrium sp. is an emerging alternative source of polyunsaturated fatty acids (PUFAs), docosahexaenoic acid (DHA), and squalene, playing an important role in the phasing out of traditional fish sources for these compounds. Novel lipid extraction techniques with a focus on sustainability and low environmental footprint are being developed for this organism, but the exploration of other added-value compou...
A Biorefinery Approach to the Biomass of the Seaweed Undaria pinnatifida (Harve...
Ferreira, Carolina A. M.; Félix, Rafael; Félix, Carina; Januário, Adriana P.; Alves, Nuno; Novais, Sara C.; Dias, Juliana R.; Lemos, Marco F.L.Brown seaweeds are recognized sources of compounds with a wide range of properties and applications. Within these compounds, phlorotannins are known to possess several bioactivities (e.g., antioxidant, anti-inflammatory, and antimicrobial) with potential to improve wound healing. To obtain phlorotannins enriched extracts from Undaria pinnatifida, a biorefinery was set using low cost industry-friendly methodolog...
Asparagopsis armata exudate cocktail: the quest for the mechanisms of toxic act...
Silva, Carla; Simões, Tiago; Félix, Rafael; A.M.V.M., Soares; Barata, Carlos; Novais, Sara C.; Lemos, Marco F.L.The seaweed Asparagopsis armata exhibits a strong invasive behavior, producing halogenated compounds with effective biological effects. This study addresses the biochemical responses to sublethal concentrations of A. armata exudate on the marine snail Gibbula umbilicalis whole body and the shrimp Palaemon elegans eyes and hepatopancreas. Antioxidant defenses superoxide dismutase (SOD) and glutathione-S-transfer...
The biotechnological potential of Asparagopsis armata: what is known of its che...
Félix, Rafael; Dias, Pedro; Félix, Carina; Cerqueira, Teresa; Andrade, Paula B.; Valentão, Patricia; Lemos, Marco F.L.Marine biomass is a resource with great potential to fuel a circular bioeconomy addressing the current economic and environmental world crisis, while seaweeds are known to be a great source of bioactive compounds with potential use for human and animal nutrition, novel natural preservatives, phytopharmaceuticals, cosmeceuticals, biopharmaceuticals, among others. Asparagopsis armata (Harvey, 1855) is a seaweed w...
Argan oil as a rich source of linoleic fatty acid for dietetic structured lipid...
Simões, Tiago; Ferreira, Jessica; Lemos, Marco F.L.; Augusto, Ana; Félix, Rafael; Silva, Susana F.J.; Ferreira-Dias, Suzana; Tecelão, CarlaArgan oil is rich in long-chain unsaturated fatty acids (FA), mostly oleic and linoleic, and natural antioxidants. This study addresses the production of low-calorie structured lipids by acidolysis reaction, in a solvent-free system, between caprylic (C8:0; system I) or capric (C10:0; system II) acids and argan oil, used as triacylglycerol (TAG) source. Three commercial immobilized lipases were tested: Novozym®...