9 documents found, page 1 of 1
Optimisation of stability and colouring power of double emulsion systems loaded...
Teixeira, Liandra Gracher; Silva, Samara Cristina; Colucci, Giovana; Santamaria-Echart, Arantzazu; Peres, António M.; Dias, Madalena M.Anthocyanins (ACNs) are water-soluble bioactive flavonoids present in flowers, fruits and vegetables, ACNs cover a wide palette of colors, from blue and purple through orange to red.
Optimisation of stability and colouring power of double emulsion systems loaded...
Teixeira, Liandra Gracher; Silva, Samara Cristina; Colucci, Giovana; Santamaria-Echart, Arantzazu; Peres, António M.; Dias, Madalena M.Anthocyanins (ACNs) are water-soluble bioactive flavonoids found in flowers, roots, leaves, seeds, and stalks. ACNs cover a wide palette of colours, from blue and purple through orange to red1,2. They are used in the food industry (food colourant with E163 code), namely in fruit juice concentrates, nectars, jellies, yoghurts, marmalades, potato chips, ice creams, and soft drinks, replacing the synthetic Red 40 ...
Developing High-Coloring Natural Systems Using Double Emulsions with Daucus car...
Teixeira, Liandra Gracher; Silva, Samara Cristina; Colucci, Giovana; Santamaria-Echart, Arantzazu; Peres, António M.; Dias, Madalena M.; Barreiro, M.F.Daucus carota L. extract is attracting interest as a natural colorant alternative. However, the presence of anthocyanins (ACNs), which are sensitive to pH changes, limits its application. To tackle this issue, water-in-oil-in-water (W1/O/W2) double emulsions are emerging as innovative solutions. Nevertheless, the problem of reaching robust colorant systems for industrial use still needs to be overcome. One impo...
Photodynamic inactivation of Staphylococcus aureus by ecological antibacterial ...
Crugeira, Pedro Jorge Louro; Almeida, Heloísa H.S.; Teixeira, Liandra Gracher; Barreiro, M.F.Antimicrobial resistance is a problem in contemporary society, with Staphylococcus aureus standing out as a threat due to its ability to colonize, its pathogenicity, and its expression of several virulence factors. In this context, antimicrobial photodynamic inactivation (aPDI) emerges as an alternative to conventional microbicidal or microbiostatic systems, enabling numerous and successive applications without...
Development of colloidal lignin particles through particle design strategies an...
Colucci, Giovana; Santamaria-Echart, Arantzazu; Silva, Samara Cristina; Teixeira, Liandra Gracher; Ribeiro, Andreia; Rodrigues, Alírio; Barreiro, M.F.Colloidal lignin particles (CLPs) have increased interest as green and sustainable materials for Pickering stabilizers, with particle design being an important step towards their effective use. In this context, the antisolvent precipitation method was selected to conduct a study aiming at understanding the effect of process variables (initial lignin concentration, antisolvent pH, final ethanol concentration, an...
Water-in-oil-in-water double emulsions as protective carriers for Sambucus nigr...
Teixeira, Liandra Gracher; Rezende, Stephany; Fernandes, Ângela; Fernandes, Isabel P.; Barros, Lillian; Barreira, João C.M.; Leimann, Fernanda VitóriaThe use of natural colorants is needed to overcome consumer concerns regarding synthetic food colorants0 safety. However, natural pigments have, in general, poor stability against environmental stresses such as temperature, ionic strength, moisture, light, and pH, among others. In this work, water-in-oil-in-water (W1/O/W2) emulsions were used as protective carriers to improve color stability of a hydrophilic Sa...
Desenvolvimento de formulações corantes de antocianinas baseadas na produção de...
Teixeira, Liandra GracherOs corantes são usados na indústria alimentar, química e farmacêutica, entre outras, para conferir cor, com o objetivo de tornar o produto mais atraente para os consumidores. Adicionalmente, nos últimos anos, a procura por produtos naturais seguros tem incrementado, devido à preocupação crescente dos consumidores pela adoção de um estilo de vida mais saudável. No caso concreto dos corantes, esta tendência resul...
Development of double emulsions from Sambucus nigra L. berry extract as ph stab...
Teixeira, Liandra Gracher; Fernandes, Isabel P.; Rezende, Stephany; Reis, Filipa S.; Barros, Lillian; Leimann, Fernanda Vitória; Ferreira, Isabel C.F.R.Anthocyanins are flavonoids, one of the largest groups of water-soluble vegetable pigments, having also sweetening and antioxidant properties. They are characterized by different colors, such as red, purple, blue and violet. However, their color stability is compromised by variations in pH, temperature, moisture, and luminosity conditions. 1 The berries of Sambucus nigra L. have high contents of anthocyanins (c...
Soluções corantes baseadas em emulsões duplas incorporando extrato de Sambucus ...
Teixeira, Liandra Gracher; Rezende, Stephany; Fernandes, Isabel P.; Reis, Filipa S.; Barros, Lillian; Barreira, João C.M.; Leimann, Fernanda VitóriaAs antocianinas são pigmentos vegetais hidrossolúveis, pertencentes à classe dos flavonoides apresentando propriedades edulcorantes e bioativas. São caracterizadas por conferirem cor na gama do vermelho a violeta. No entanto, para aplicações industriais, estes pigmentos apresentam problemas de variabilidade da cor com o pH, temperatura, presença de humidade e luminosidade [1]. Neste contexto, estudaram-se extra...