40 documents found, page 1 of 4
Eco‑friendly cleaning agent applied for ex situ remediation of beach sand conta...
Santos, Adriana Vieira dos; Santos, Verena Filgueiras Borges dos; Fernandes, Virgínia Cruz; Figueiredo, Sónia Adriana; Grosso, ClaraCoastal oil spills cause significant adverse effects, and removing weathered crude oil mixed with sand remains a considerable challenge. To address this, an environmentally friendly cleaning agent was formulated using a vegetable oil-based microemulsion for sediment cleaning. The relationship between microemulsion composition and its efficiency in cleaning oil-contaminated sediments in coastal environments was ...
Influence of dispersant and surfactant on nZVI characterization by dynamic ligh...
Fernandes, Filipe Jorge; Oliveira, Ana Isabel; Delerue-Matos, Cristina; Grosso, Clara; Oliveira, Ana IsabelThe agrifood industries generate tremendous amounts of waste. The valorisation of these wastes is of the utmost importance. Here, spent coffee ground (SCG) and Cistus ladanifer L. leaf (CLL) post-distillation residues were used to prepare 50:50 (v/v) hydromethanolic extracts for green zero-valent iron nanoparticle (nZVI) production. Then, the nZVIs’ size, polydispersity index (PDI) and zeta potential (ZP) were ...
Culinary plant-based decoctions: A promising approach for combatting neurodegen...
Grosso, Clara; Martins, Rosário; Delerue-Matos, Cristina; Martins, RosarioThis study aimed to assess the effectiveness of nutritional therapy in preventing or treating neurodegenerative disorders. To achieve this, decoctions from 5 culinary plants - turmeric (Curcuma longa L.), rosemary (Salvia rosmarinus Spenn.), lemon basil (Ocimum basilicum L. var. citriodorum), spearmint (Mentha spicata L.) and winter savory (Satureja montana L.) - were evaluated for their ability to combat react...
Phytosome-based nanocarriers enhanced with seaweed extracts: Overcoming the blo...
Portela, Mariana; Silva, Aurora; Carpena, Maria; Grosso, Clara; Barroso, Maria Fátima; Oliveira, Ana Isabel; Martins, Claudia; Ribeiro, CristinaNeurodegenerative diseases impact millions of people globally and are emerging as an imminent challenge due to the rapid aging of the population. The current treatments only focus on relieving their symptoms, so it is necessary to adopt innovative strategies. However, delivering pharmacological agents directly into the brain is difficult because of the presence of the Blood–Brain Barrier (BBB). To overcome this...
Optimized extraction protocols for bioactive antioxidants from commercial seawe...
Santos, Francisca; Soares, Cristina; Morais, Stephanie L.; Neves, Cátia; Grosso, Clara; Ramalhosa, Maria João; Vieira, Mónica; Delerue-Matos, CristinaThis study aimed to optimize the extraction conditions for a valuable source of antioxidants: seaweed. Therefore, ten seaweed samples were subjected to a solid–liquid extraction (SLE), where the extraction conditions (biomass (g): solvent (mL) ratio, temperature, and time) were optimized using response surface methodology (RSM). The seaweeds were also subjected to subcritical water extraction (SWE) (140 and 190...
Exploring the potential of invasive species Sargassum muticum: microwave-assist...
Silva, Aurora; Cassani, Lucia; Carpena, Maria; Lourenço-Lopes, Catarina; Grosso, Clara; Chamorro, Franklin; García-Pérez, Pascual; Carvalho, AnaSargassum muticum (SM) poses a serious environmental issue since it is a fast-expanding invasive species occupying key areas of the European shoreline, disrupting the autochthonous algae species, and disturbing the ecosystem. This problem has concerned the general population and the scientific community. Nevertheless, as macroalgae are recognized as a source of bioactive molecules, the abundance of SM presents ...
Natural antioxidants from marine sources and their application in foods
Silva, Aurora; Carpena, Maria; Grosso, Clara; Barciela, Paula; Pereira, Antía González; Cassani, Lucia; Barroso, Maria F.; Simal-Gandara, JesusThis chapter provides an overview of recent studies assessing the antioxidant potential of marine organisms and their bioactive compounds to be incorporated into food products and supplements. Emphasis was given to marine flora, especially micro- and macroalgae and marine invertebrates, namely sponges, seagrasses, sea cucumbers, jellyfishes, crustaceans, and mollusks. The most relevant compounds such as vitamin...
Neuroprotective effects of cyanobacterial extracts
Rodrigues, Flávia; Grosso, Clara; Ferreira, Leonor; Vasconcelos, Vítor; Reis, Mariana; Martins, Rosário; Martins, RosarioNeurodegenerative diseases (ND), namely Alzheimer’s disease (AD) affects millions of people worldwide. Despite their high incidence there is still no effective medical therapy. Cyanobacteria have been in the frontline of the search for therapies for ND. Several in silico, in vitro, and in vivo studies have provided support for the neuroprotective potential of cyanobacterial natural products, particularly in AD....
The neuroprotective role of cyanobacteria with focus on the anti-inflammatory a...
Rodrigues, Flávia; Reis, Mariana; Ferreira, Leonor; Grosso, Clara; Ferraz, Ricardo; Vieira, Mónica; Vasconcelos, Vítor; Martins, RosárioNeurodegenerative diseases are linked to the process of neurodegeneration. This can be caused by several mechanisms, including inflammation and accumulation of reactive oxygen species. Despite their high incidence, there is still no effective treatment or cure for these diseases. Cyanobacteria have been seen as a possible source for new compounds with anti-inflammatory and antioxidant potential, such as polysac...
Sustainable carotenoid extraction from macroalgae: Optimizing microwave-assiste...
Lopes, Andreia; Correia-Sá, Luísa; Vieira, Mónica; Delerue-Matos, Cristina; Soares, Cristina; Grosso, Clara; Vieira, MónicaThis study aimed at optimizing carotenoid extraction using the macroalga Himanthalia elongata (L.) S.F.Gray as a model. Firstly, traditional extraction procedures were employed, using various solvents and temperatures to enhance the extraction conditions. Once the most effective extraction conditions were identified, the study transitioned to a more efficient and environmentally friendly approach, microwave-ass...