30 documents found, page 1 of 3
Ecklonia maxima and glycine-betaine-based biostimulants improve blueberry yield...
Lopes, Tiago; Silva, Ana Paula; Ribeiro, Carlos; Carvalho, Rosa; Aires, Alfredo; Vicente, A. A.; Gonçalves, BertaThe consumption of blueberries has increased in recent years due to their excellent flavor and high antioxidant activity, which promote human well-being and health. Several sustainable cultural practices, such as biostimulants, have been applied to increase crop performance. The pre-harvest foliar application of two doses of a biostimulant based on the macroalgae Ecklonia maxima (EM), two doses of a glycine–bet...
Screening of chemical composition, antimicrobial and antioxidant activities in ...
Silva, Vanessa; Silva, Adriana; Ribeiro, Jessica; Aires, Alfredo; Carvalho, Rosa Paula; Amaral, Joana S.; Barros, Lillian; Igrejas, GilbertoAntimicrobial resistance is increasing globally and is now one of the major public health problems. Therefore, there is a need to search for new antimicrobial agents. The food industry generates large amounts of by-products that are rich in bioactive compounds, such as phenolic compounds, which are known to have several health benefits, including antioxidant and antimicrobial properties. Thus, we aimed to chara...
Effects of foliar and soil boron fertilization on yield, leaf physiological tra...
Silva, A.P.; Aires, Alfredo; Barreales, David; Rodrigues, M.A.; Ribeiro, A.C.; Gonçalves, Berta M.; Morais, Maria C.Boron (B) fertilizers are recognized as essential for ensuring yield and fruit quality. However, the importance of soil and foliar B fertilization in almond orchards under rainfed conditions is presently unclear. To address this literature gap, in the present study, the impact of soil and foliar application of B on leaf gas exchange, leaf photosynthetic pigments, yield, and fruit quality in almonds was investig...
Platanus hybrida’s phenolic profile, antioxidant power, and antibacterial activ...
Ribeiro, Jessica; Silva, Vanessa; Aires, Alfredo; Carvalho, Rosa Paula; Barros, Lillian; Gaivão, Isabel; Igrejas, Gilberto; Poeta, PatríciaMethicillin-resistant S. aureus (MRSA) are a threat to public health as they frequently reveal a multidrug-resistant pattern. Researchers all over the world are on an urgent hunt for new treatments to help fight infections before antibiotics become obsolete, and some natural alternatives, such as polyphenols, have already exhibited therapeutic properties. Therefore, this study aimed to determine the phenolic pr...
Antimicrobial, Antibiofilm, and Antioxidant Properties of Boletus edulis and Ne...
Garcia, Juliana; Rodrigues, Francisca; Castro, Flávia; Aires, Alfredo; Marques, Guilhermina; Saavedra, Maria JoséMultidrug-resistant ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) has become the most recurrent global cause of skin and soft-tissue infections, belonging to the WHO priority pathogens list. Successful therapy remains challenging and entails the assessment of novel and successful antibiotics. In th...
Combined soil and foliar nitrogen fertilization effects on rainfed almond tree ...
Morais, Maria Cristina; Aires, Alfredo; Barreales, David; Rodrigues, M.A.; Ribeiro, A.C.; Gonçalves, Berta C.C.; Silva, A.P.Cultivation of almond in the Mediterranean region is traditionally done under rainfed conditions and poorly established cropping practices resulting in low yields. Despite the importance of nitrogen (N) fertilization to increase yield in cultivated species, this practice is usually neglected in rainfed managed almond orchards. Selection of the most appropriate rate and method of nitrogen (N) application are utm...
Phenolics and antioxidant activity of green and red sweet peppers from organic ...
Guilherme, Rosa; Aires, Alfredo; Rodrigues, Nuno; Peres, António M.; Pereira, J.A.Today, consumers are very concerned regarding food quality, nutritional composition and positive health effects of consumed foods. In this context, the preference and consumption of organic products has been increasing worldwide. In the present work, sweet peppers in two maturation stages (i.e., green and red peppers) from organic and conventional production systems were evaluated in regards to phenolic composi...
Physiological and biochemical performance of almond trees under deficit irrigation
Prgomet, Iva; Pascual-Seva, Núria; Morais, Maria Cristina; Aires, Alfredo; Barreales, David; Ribeiro, A.C.; Silva, A.P.; Barros, Ana I.R.N.A.The almond tree is generally recognized as drought-tolerant, though it depends on water resources to achieve high yields. During the summer months of two consecutive years, several physiological and biochemical parameters were observed, to understand the almond tree’s seasonal sensitivity and behavior under different irrigation strategies based on crop evapotranspiration (ETc): T100 optimal water requirement re...
Chapter 2 - Polyphenols for skin cancer: Chemical properties, structure-related...
Souto, Eliana B.; Sampaio, Ana C.; Campos, Joana R.; Martins-Gomes, Carlos; Aires, Alfredo; Amélia M. SilvaPolyphenols are widely spread in the plant kingdom as products of secondary metabolism. They are known for a series of biological properties that influence human health, and evidence exists that people can benefit from plant phenolics obtained either from diet or through skin application, because they can alleviate symptoms and inhibit the development of various skin disorders. The biosynthesis of polyphenols d...
X Encontro Europeu da Castanha
Carvalho, Andreia Marlise Carneiro de; Louzada, José Luís Penetra Cerveira; Marques, Tiago; Aires, Alfredo; Vilela, Alice; Ventura, Jorge; Laranjo, JoséClimate change is a current issue that influences world agricultural production. In this context, extreme temperatures and low rainfall during the summer hamper the development and growth of the chestnut tree, thereby increasing its susceptibility to disease and pests, affecting the production of chestnut. In the future, plants will be exposed to various abiotic and biotic stresses affecting their defense respo...