120 documents found, page 1 of 12
Development and characterization of nutritious and sustainable canned fish meal...
Oliveira, Helena; Cristóvão, Maria; Nabais, Alexandre; Camacho, Carolina; Sapatinha, Maria; Pires, Carla; Lourenço, Helena M.; Fernandes, Maria H.Canning is an excellent solution to provide convenient, affordable, nutritious, and safe seafood with a long shelf life. However, many canned products use tuna, sardines, and Atlantic chub mackerel, species that raise sustainability concerns and whose overuse can put additional pressure on them. Hence, this study aimed to i) develop and assess a nutritious and sustainable canned meal prototype using the Atlanti...
DESIGN AND METHODOLOGY FOR AN AGRIVOLTAIC PILOT PROJECT IN THE ALENTEJO REGION
Oliveira, Helena; Bunge, Lisa; Silva, José; Fialho, Luís; Infante, Paulo; Horta, PedroThis paper presents a study for an agrivoltaics pilot project in the Alentejo region, aimed at identifying the average percentage increase in efficiency between different types of photovoltaic panels (monofacial and bifacial modules) due to cooling effects from shading, when installed over monoculture rotations and intercropping systems with crops that benefit from Shade Avoidance Syndrome (SAS). The study will...
Valorisation of sea urchin (Paracentrotus lividus) gonads through canning
Camacho, Carolina; Oliveira, Helena; Serrano, Carmo; Delgado, Inês; Coelho, Inês; Pedro, Sónia; Lourenço, Helena; Bandarra, Narcisa M.; Marques, AntónioFresh sea urchin (Paracentrotus lividus) gonads are a delicacy with short seasonal availability, very often heterogeneous in size and intrinsic characteristics. This study aimed to valorise this resource through the preparation of canned products (with/without Porphyra spp.) and evaluate their physicochemical and sensory quality (3–12 months). Canning contributed to a decrease in protein, K and most carotenoids...
Is silver a precious metal for G-Quadruplex stabilization mediated by porphyrins?
Moura, Nuno M. M.; Guedes, Sofia; Salvador, Diana; Oliveira, Helena; Neves, M. Graça P. M. S.; Ramos, Catarina I. V.Cancer is a leading cause of death, so continuous efforts into cancer therapy are imperative. In tumor cells, telomerase and oncogene activity are key points for uncontrolled cell growth. Targeting these processes with ligands that inhibit telomerase and/or reduce oncogene expression has been identified as a promising cancer therapy. This study evaluated the selectivity and affinity of the silverII complex of 5...
Protein hydrolysates from salmon heads and cape hake by-products: comparing enz...
Pires, Carla; Leitão, Matilde; Sapatinha, Maria; Gonçalves, Amparo; Oliveira, Helena; Nunes, Maria Leonor; Teixeira, Bárbara; Mendes, RogérioFish by-products can be converted into high-value-added products like fish protein hydrolysates (FPHs), which have high nutritional value and are rich in bioactive peptides with health benefits. This study aims to characterise FPHs derived from salmon heads (HPSs) and Cape hake trimmings (HPHs) using Alcalase for enzymatic hydrolysis and Subcritical Water Hydrolysis (SWH) as an alternative method. All hydrolysa...
Resveratrol-loaded polydimethylsiloxane-silica hybrid materials: synthesis, cha...
Viegas, Sofia; Marinheiro, Diogo; Bastos, Verónica; Daniel-da-Silva, Ana L.; Vieira, Ricardo; Oliveira, Helena; Almeida, José CarlosIn this work, hybrid materials within the polydimethylsiloxane-silica (PDMS-SiO2) system, synthesized via the sol-gel method, were developed and characterized for their potential to incorporate and release the bioactive compound resveratrol (RES). RES was incorporated into the materials with a high loading efficiency (>75%) using the rotary evaporator technique. This incorporation induced the amorphization of R...
How the “Olive Oil Polyphenols” health claim depends on anthracnose and olive f...
Peres, Maria de Fátima; Gouveia, Cecília; Vitorino, Conceição; Oliveira, Helena; Dias, Suzana FerreiraOlive anthracnose, caused by Colletotrichum fungi, and the olive fruit fly Bactrocera olea are, respectively, the most important fungal disease and pest affecting olive fruits worldwide, leading to detrimental effects on the yield and quality of fruits and olive oil. This study focuses on the content of hydroxytyrosol (HYT) and its derivatives (the “olive oil polyphenols” health claim) in olive oils extracted f...
How the “Olive Oil Polyphenols” Health Claim Depends on Anthracnose and Olive F...
Peres, Fátima; Gouveia, Cecília; Vitorino, Conceição; Oliveira, Helena; Ferreira-Dias, SuzanaOlive anthracnose, caused by Colletotrichum fungi, and the olive fruit fly Bactrocera olea are, respectively, the most important fungal disease and pest affecting olive fruits worldwide, leading to detrimental effects on the yield and quality of fruits and olive oil. This study focuses on the content of hydroxytyrosol (HYT) and its derivatives (the “olive oil polyphenols” health claim) in olive oils extracted f...
Olive Anthracnose in Portugal Is Still Mostly Caused by Colletotrichum nymphaea...
Cabral, Ana; Nascimento, Teresa; Azinheira, Helena; Loureiro, Andreia; Talhinhas, Pedro; Oliveira, HelenaOlive anthracnose, caused by Colletotrichum fungi, is responsible for major fruit yield losses and poor olive oil quality worldwide. In the Mediterranean basin, some Colletotrichum spp. appear to be replacing others, possibly due to climate change and modification in cultural systems. To update the situation in Portugal, 525 olive groves were surveyed throughout the country over two years, revealing a decrease ...
Olive Anthracnose in Portugal is still mostly caused by Colletotrichum nymphaea...
Cabral, Ana; Nascimento, Teresa; Azinheira, Helena; Loureiro, Andreia; Talhinhas, Pedro; Oliveira, HelenaOlive anthracnose, caused by Colletotrichum fungi, is responsible for major fruit yield losses and poor olive oil quality worldwide. In the Mediterranean basin, some Colletotrichum spp. appear to be replacing others, possibly due to climate change and modification in cultural systems. To update the situation in Portugal, 525 olive groves were surveyed throughout the country over two years, revealing a decrease ...