18 documents found, page 1 of 2
Rheology and soft tribology characterization of yoghurt with curcumin-loaded so...
Gonçalves R. F. S.; Abreu C. S.; Gomes, J. R.; Vicente, A. A.; Pinheiro, A. C.; Vieira, J. M.Consistency and mouthfeel arising from the consumption of yoghurts are crucial factors for the consumers’ acceptability. The aim of this work was to identify potential differences in sensory perceptions of yoghurts with curcumin-loaded solid lipid nanoparticles (SLN) incorporation. Rheology coupled with tribology were considered to simulate the dynamic aspects of oral processing. The friction behaviour showed s...
Effect of extraction temperature on rheological behavior and antioxidant capaci...
Vieira, J. M.; Mantovani, R. A.; Raposo, M. F. J.; Coimbra, M. A.; Vicente, A. A.; Cunha, R. L.Soluble flaxseed gum (SFG) extracted at different temperatures (25, 40, and 60°C) was analyzed in relation to the yield, polysaccharides and phenolics composition, surface charge, color, and rheological properties. The yield of SFG extract increased as the extraction temperature increased. The SFG xylan was the main component regardless the extraction temperature, but a reduction of substituents on the xylose c...
Cast iron corrosion protection with chemically modified Mg Al layered double hy...
Vieira, D.E.L.; Sokol, D.; Smalenskaite, A.; Kareiva, A.; Ferreira, M.G.S.; Vieira, J. M.; Salak, A. N.Layered double hydroxides (LDHs) intercalated with corrosion inhibitive species are considered as promising additives to protection coatings. However, the conventional method of LDH preparation via co-precipitation followed by anion exchange is a water consuming and slow process hardly applicable to industrial use. In this work, a novel approach to LDH synthesis via hydration of sol-gel prepared mixed metal oxi...
Influence of the extraction temperature on rheological properties of flaxseed g...
Vieira, J. M.; Mantovani, R.; Vicente, A. A.; Cunha, R. L.The 19th Gums & Stabilisers for the Food Industry Conference: Hydrocolloid multifunctionality; info:eu-repo/semantics/publishedVersion
Assessing segregation effects on multiferroic properties of antiferromagneticwe...
Vieira, J. M.; Baghizadeh, A.; Amaral, J. S.; Gonçalves, J. N.; Almeida, B. A.; Willinger, M-G.; Amaral, V. S.The interplay of ferroic domain walls with crystalline structures and lattice planar defects becomes rather elaborated in multiferroic materials or in magnetic bilayers and multilayers where magnetic moments of antiferromagnetic and ferromagnetic lattices are coupled at the bilayer interface [1-5]. Single atomic layer and double layers make the antiphase ferroelectric domain walls organized in six-fold vortices...
Postharvest shelf life extension of blueberries using a chitosan-based edible c...
Vieira, J. M.; Flores-López, M. L.; Sousa, M. C.; Vicente, A. A.; Martins, Joana; Jasso de Rodríguez, D.Poster; Blueberries are currently one of the most valuable fruits worldwide, due to their organoleptic and nutritional properties. However these fruits are highly perishable due to their susceptibility to fungal infections (e.g. Botrytis cinerea) and water loss during storage. Edible coatings can improve fruits quality and extend their shelf life by providing a barrier to moisture and gases. The incorporation o...
Magnetic structure of an incommensurate phase of La-doped BiFe0.5Sc0.5O3: Role ...
Khalyavin, D. D.; Salak, A. N.; Lopes, A. B.; Olekhnovich, N. M.; Pushkarev, A. V.; Radyush, Yu. V.; Fertman, E. L.; Desnenko, V. A.; Fedorchenko, A. V.A 20% substitution of Bi with La in the perovskite Bi1-xLaxFe0.5Sc0.5O3 system obtained under high-pressure and high-temperature conditions has been found to induce an incommensurately modulated structural phase. The room-temperature x-ray and neutron powder diffraction patterns of this phase were successfully refined using the Imma(0,0,gamma)s00 superspace group (gamma = 0.534(3)) with the modulation applied t...
Crystal structure, magnetic and dielectric behavior of h-LuMnxO3 +/-delta ceram...
Baghizadeh, A.; Vieira, J. M.; Amaral, J. S.; Graca, M. P.; Soares, M. R.; Mota, D. A.; Amaral, V. S.Lattice constants, magnetic properties and dielectric behavior of h-LuMnxO3 +/-delta solid solution (0.95 <= x <= 1.04) of bulk ceramic samples prepared by the solid state reaction method were studied to determine the role of stoichiometry changes on the crystalline structure and magneto-electric coupling. It is found that increasing of Mn content results in reduction of cell volume of h-LuMnxO3 +/-delta cerami...
Study of multi-carbide B4C-SiC/(Al, Si) reaction infiltrated composites by SEM ...
Almeida, B. A.; Ferro, M. C.; Ravanan, A.; Grave, P. M. F.; Wu, H-Y; Gao, M-X; Pan, Y.; Oliveira, F. J.; Lopes, A. B.; Vieira, J. M.In the definition of conceptual developments and design of new materials with singular or unique properties, characterisation takes a key role in clarifying the relationships of composition, properties and processing that define the new material. B4C has a rare combination of properties that makes it suitable for a wide range of applications in engineering: high refractoriness, thermal stability, high hardness ...
XRD, SEM and Petrologic Characterization of a L4-L5 Ordinary Chondrite Meteorite
Seixas, T. M.; Almeida, B.; Mendes, M. H.; Salgueiro da Silva, M. A.; Santos, J. F.; Almeida, F.; Diogo, Z.; Lopes, A. B.; Vieira, J. M.In this work, a meteorite sample recovered in Morocco is characterized by detailed petrographic observations in transmitted and reflected light optical microscopy and by using XRD and SEM and it is tentatively classified. VIS/NTR spectral analysis of the same meteorite in a previous study suggested that it is seemingly related to the HAMLET meteorite, which was classified as LL4 chondrite. From the obtained res...