10 documents found, page 1 of 1
Microwave-assisted extraction for the sustainable recovery and valorization of ...
Barros, Diana; Pereira Pinto, Ricardo; Fernandes, Élia; Pires, Preciosa; Vaz-Velho, ManuelaThis study investigates the potential of Pinus pinaster subsp. atlantica bark, a forestry byproduct fromnorthernPortugal, as a source of phenolic compoundswithstrongantioxidant properties. Microwave-assisted extraction (MAE) was used to optimize recovery, assessing the effects of solvent composition (water, ethanol, and 50:50 water–ethanol), extraction time (15 or 30 min), and temperature (90, 110, or 130 ◦C) u...
Correlation of antioxidant and antibacterial activities of the aqueous Pinus pi...
Barros, Diana; Grenho, Liliana; Fernandes, Maria Helena; Gomes, Pedro Sousa; Fernandes, ÉliaThis study explores the antioxidant, antibacterial, and cytocompatibility properties of aqueous Pinus pinaster bark extract (PBE). PBE was prepared using two solvent systems—100% distilled water and 1% DMSO in aqueous solution—at a solid-to-liquid ratio of 1:20 (w/v), following ISO guidelines. Extract characterization included yield determination, FTIR analysis, quantification of total phenolic (TPC) and flavon...
Validation of a small-scale method for determination of phosphorus in meat and ...
Fernandes, Élia; Barros, Mário; Pires, PreciosaThe purpose of this study was to evaluate the applicability of an alternative analytical technique to the reference method for phosphorus detection in meat and meat products established by ISO 2294:1974, revised by ISO 23776:2021. When an analytical method is modified or a new one is developed and implemented, it should be validated before being accepted for routine determinations. Furthermore, it is necessary ...
Enhancing storage stability of smoke-flavored horse mackerel filets using natur...
Barros, Diana; Nova, Paulo; Cunha, Sara; Monteiro, Vitor; Fernandes, Élia; Pereira-Pinto, Ricardo; Barbosa, Carla; Pintado, Maria; Gomes, AnaThe Atlantic horse mackerel (Trachurus trachurus) is a globally favored fish due to its abundance, nutritional value, and aordability, but it faces quality preservation challenges. To address this, this study aimed to enhance its value by creating low-salt smoked products with natural bioactive compounds from seafood and forest sources. The fish filets were divided into four groups: one as a control, and the ot...
The chemical characterisation of the maritime pine bark cultivated in northern ...
Barros, Diana; Fernandes, Élia; Jesus, Meirielly; Barros, Lillian; Alonso-Esteban, José Ignacio; Pires, Preciosa; Vaz-Velho, ManuelaMaritime pine, scientifically known as Pinus pinaster, holds a vital role in Iberian Peninsula forests, primarily as a source of wood for panels, paper, and cellulose production. Recently, there has been a growing interest in utilising agroforestry by-products to yield valuable chemicals for applications in various sectors, including the food, pharmaceutical, and bioenergy industries. This study aimed to assess...
Enhancing storage stability of smoke-flavored horse mackerel filets using natur...
Barros, Diana; Nova, Paulo; Cunha, Sara; Monteiro, Vitor; Fernandes, Élia; Pereira-Pinto, Ricardo; Barbosa, Carla; Pintado, Maria; Gomes, AnaThe Atlantic horse mackerel (Trachurus trachurus) is a globally favored fish due to its abundance, nutritional value, and affordability, but it faces quality preservation challenges. To address this, this study aimed to enhance its value by creating low-salt smoked products with natural bioactive compounds from seafood and forest sources. The fish filets were divided into four groups: one as a control, and the ...
Enhancing storage stability of smoke-flavoured horse mackerel fillets using nat...
Barros, Diana; Nova, Paulo; Cunha, Sara; Monteiro, Vitor; Fernandes, Élia; Pereira-Pinto, Ricardo; Barbosa, Carla; Gomes, Ana; Vaz-Velho, ManuelaThe Atlantic horse mackerel (Trachurus trachurus) is a globally favored fish due to its abundance, nutritional value, and affordability, but it faces quality preservation challenges. To address this, this study aimed to enhance its value by creating low-salt smoked products with natural bioactive compounds from seafood and forest sources. The fish filets were divided into four groups: one as a control, and the ...
Chemical characterization of pine bark (Pinus pinaster Aiton subsp. atlantica),...
Vieito, Catarina; Pires, Preciosa; Fernandes, Élia; Velho, ManuelaIntroduction: Pine bark is an agroindustrial residue from the timber industry and represents a source of phenolic compounds. These compounds have several beneficial properties being antioxidants, antimicrobial, anti-inflammatory, cardiovascular, among others. Objetives: The aim of this work was to study the chemical composition of the bark from Pinus pinaster Aiton subsp. atlantica and the phenolic profile of i...
Chemical characterization of pine bark (Pinus pinaster Aiton subsp. atlantica),...
Vieito, Catarina da Silva; Pires, Preciosa; Fernandes, Élia; Vaz Velho, ManuelaIntroduction: Pine bark is an agroindustrial residue from the timber industry and represents a source of phenolic compounds. These compounds have several beneficial properties being antioxidants, antimicrobial, anti-inflammatory, cardiovascular, among others. Objetives: The aim of this work was to study the chemical composition of the bark from Pinus pinaster Aiton subsp. atlantica and the phenolic profile of i...
Comparison of milk from two different cow breeds Barrosã and Frísia
Pires, Preciosa; Fernandes, Élia; Vilarinho, Manuela; Barros, Mário; Ferreira, Rita; Carneiro, Luísa; Almeida, Gonçalo; Vaz-Velho, ManuelaMilk from two different cow breeds, Barrosã and Frísia, was studied. Within the same breed five and four milk samples were taken respectively for chemical and microbiological analysis. The following chemical parameters were analysed in triplicate: Total Fat, Fatty Acids Identification and Quantification, Protein, Casein, Albumin, Non-protein Nitrogen, Vitamin A, Vitamin D, Phosphorus, Potassium, Sodium, Iron, M...