126 documents found, page 1 of 13
Nano versus bulk: Evaluating the toxicity of lanthanum, yttrium, and cerium oxi...
Santos, Joana; Neca, Inês; Capitão, Ana; Nogueira, João; Santos, José A. S.; Pinto, Edgar; Barreto, Angela; Silva, Ana L. Daniel da; Maria, Vera L.Considering the increase in demand for rare earth elements (REEs) and their accumulation in soil ecosystems, it is crucial to understand their toxicity. However, the impact of lanthanum, yttrium and cerium oxides (La2O3, Y2O3 and CeO2, respectively) on soil organisms remains insufficiently studied. This study aims to unravel the effects of La2O3, Y2O3 and CeO2 nanoparticles (NPs) and their corresponding bulk fo...
Life cycle assessment using machine learning
Gomes, Sofia; Faria, Brígida Mónica; Oliveira, Alexandra Alves; Pinto, Edgar; Rodrigues, Matilde; Vieira, Manuela; Faria, Brigida MonicaLife Cycle Assessment (LCA) is a scientific tool that allows calculating the impact of a product or service on the environment, considering the different phases from planting to transportation, commercialization, consumption, and disposal. (1) LCA requires comprehensive data collection of the inputs and outputs such as raw materials, energy, water, used chemicals and pollutants emissions at each stage of the li...
Stock structure of the gulf hake urophycis cirrata (Teleostei: Phycidae) in sou...
Santificetur, César; Rossi-Wongtschowski, Carmen Lúcia Del Bianco; Ruperti, André; Almeida, Agostinho; Pinto, Edgar; Correia, Alberto TeodoricoUrophycis cirrata is an important demersal fish species targeted by Brazilian industrial fisheries. With high exploitation rates, its stock(s) is(are) currently deemed fully exploited or overexploited. While basic ecological information, such as length at first maturity, exists, knowledge of its population structure is limited. A sub-sample of 90 sagittal otoliths of U. cirrata juveniles (300–411 mm total lengt...
Evaluation of the potential of annatto seed powder to reduce the formation of h...
Gonçalves, Thaís de Moura Neves; Braga, Anna Rafaela Cavalcante; Pinto, Edgar; Viegas, Olga; Mesquita, Leonardo M. de SouzaVarious strategies are being explored to reduce the formation of undesirable compounds during the thermal processing of foods. This study investigates the impact of incorporating annatto seed powder (Bixa orellana L.) into beef patties to reduce the formation of heterocyclic amines (HAs) during charcoal-grilling and pan-frying. A three-level full factorial design was used to assess the effect of both annatto se...
Unveiling the geographical influence on honey's physicochemical profile: a case...
Soares, Sónia; Magalhães, Leandro; Moreira, Manuela M.; Rede, Diana; Fernandes, Virgínia Cruz; Viegas, Olga; Pinto, Edgar; Almeida, AgostinhoIn recent years, global honey consumption has significantly increased due to the rising demand for natural products with health benefits. Consumers are particularly drawn to honey recognized for its superior quality, such as Protected Designation of Origin (PDO) honey or honey produced in protected areas, which is associated with distinctive characteristics. Portugal stands among the top producers of PDO honey,...
An eco-friendly approach for analysing sugars, minerals, and colour in brown su...
Alves, Vandressa; Santos, Jeferson M. dos; Viegas, Olga; Pinto, Edgar; Ferreira, Isabel M.P.L.V.O.; Lima, Vanderlei Aparecido; Felsner, Maria L.Brown sugar is a natural sweetener obtained by thermal processing, with interesting nutritional characteristics. However, it has significant sensory variability, which directly affects product quality and consumer choice. Therefore, developing rapid methods for its quality control is desirable. This work proposes a fast, environmentally friendly, and accurate method for the simultaneous analysis of sucrose, red...
Toxic and non-toxic cyanobacterial biomass as a resource for sustainable agricu...
Massa, Anabella; Santos, Érica; Martins, Diogo; Azevedo, Joana; Reimão, Mariana; Almeida, Agostinho; Azevedo, Rui; Pinto, Edgar; Vasconcelos, VítorCyanobacteria represent a promising resource for sustainable agriculture, as they have demonstrated the ability to restore soil fertility even after death and decay. However, several cyanobacteria can also release secondary metabolites, such as cyanotoxins, which may compromise the quality of agricultural products and pose a potential risk to human health. Depending on the concentration of exposure, few studies...
Determination of Vitamin C content in spinach plants grown under the use of cya...
Martins, Diogo; Massa, Anabella; Reimão, Mariana; Vasconcelos, Vítor; Campos, Alexandre; Pinto, Edgar; Freitas, MarisaThe agricultural sector is continuously exploring sustainable and innovative approaches to enhance crop productivity, driving the quest for greener alternatives over synthetic fertilizers. Cyanobacteria have been reported as a promising agricultural fertilizer, with positive effects on crop yield. However, little is known about its potential effects on the produced vegetables' nutritional quality. Studies have ...
High-value compounds in papaya by-products (Carica papaya L. var. Formosa and A...
Vinha, Ana F.; Costa, Anabela S. G.; Santo, Liliana Espírito; Ferreira, Diana M.; Sousa, Carla; Pinto, Edgar; Almeida, AgostinhoFood waste is a global and growing problem that is gaining traction due to its environmental, ethical, social, and economic repercussions. Between 2022 and 2027, the worldwide papaya market is expected to have a huge increase, meaning a growth in organic waste, including peels and seeds. Thus, this study evaluated the potential use of peels and seeds of two mature papaya fruits as a source of bioactive compound...
Digital image processing combined with machine learning: A new strategy for bro...
Alves, Vandressa; Santos, Jeferson M. dos; Pinto, Edgar; Ferreira, Isabel M.P.L.V.O.; Lima, Vanderlei Aparecido; Felsner, Maria L.The coloring of foods is one of the main attributes of importance for consumers and it can be decisive for a consumer to accept or reject the product. Models that explore brown sugar coloring are scarce in scientific research. So, a new strategy for brown sugar classification through the combination of digital image processing, machine learning and physicochemical composition data was proposed. RGB channel inte...