Buscar
Mostrando ítems 1-10 de 11
Artículo
Characterization of novel nanoemulsions, with improved properties, based on rosemary essential oil and biopolymers
(Wiley-Blackwell, 2020-08)
ACKGROUND: Nowadays, it is of great interest to develop stable and sustainable formulations that act as nanocarriers of active ingredients. In this work, the droplet size distribution, rheology and physical stability of ...
Artículo
Gellan gum fluid gels: influence of the nature and concentration of gel-promoting ions on rheological properties
(Springer, 2018-11)
Low-acyl gellan gum fluid gels were obtained using two different gel-promoting cations under the same processing conditions, and their rheological properties were investigated. For that reason, stress and frequency sweep ...
Artículo
Effect of temperature and shear on the microstructure of a microbial polysaccharide secreted by Sphingomonas species in aqueous solution
(Elsevier, 2018-10-15)
Diutan gum is a biological polymer produced by Sphingomonas sp. In aqueous solution it shows gel-like structure under quiescent conditions. However, the flow-induced evolution of its viscoelastic properties and its ...
Artículo
Rheology, microstructural characterization and physical stability of W/α-PINENE/W emulsions formulated with copolymers
(Elsevier, 2018)
In this work the microstructure and the physical stability of emulsions containing α-pinene and gellan gum were studied as a function of Atlas™ G-5000/Atlox™ 4912 copolymer mass ratio, R, used as emulsifier. In order to ...
Artículo
Influence of the welan gum biopolymer concentration on the rheological properties, droplet size distribution and physical stability of thyme oil/W emulsions
(Elsevier, 2019-07)
The objective of this work is to obtain a stable and natural antimicrobial delivery system. Thus, the effect of the addition of a natural polysaccharide such as welan gum on the linear viscoelastic properties, flow behaviour, ...
Artículo
Flow, dynamic viscoelastic and creep properties of a biological polymer produced by Sphingomonas sp. as affected by concentration
(Elsevier, 2019-03-15)
In this work, the influence of the concentration on the flow behaviour, dynamic viscoelastic and creep properties of diutan gum in aqueous solution was investigated. Diutan gum is a biopolymer which belongs to the sphingans ...
Artículo
Aplicación de alta presión sobre disoluciones acuosas de goma diutan: influencia sobre las propiedades reológicas
(Asociación de Químicos e Ingenieros del Instituto Químico de Sarriá, 2017)
En este trabajo se estudia el efecto de aplicar alta presión sobre el comportamiento reológico de disoluciones acuosas de goma diutan con el objeto de ampliar su uso potencial. Muestras de goma diutan sin tratar y ...
Artículo
Influence of primary homogenization step on microfluidized emulsions formulated with thyme oil and Appyclean 6548
(Elsevier, 2018)
This contribution deals with the development of emulsions formulated using thyme essential oil and a new biomass-derived surfactant. In addition, this work extends our knowledge concerning the factors that can influence ...
Artículo
Production of more sustainable emulsions formulated with eco-friendly materials
(Elsevier, 2020-01)
Sustainable development involves the search for new products with a low environmental impact. Hence, the aim of this work is to obtain stable and concentrated aqueous emulsions containing bitter fennel oil and a biomass-derived ...
Artículo
Tackling slip effects in the nonlinear flow properties of gellan fluid gels
(Wiley, 2019-01)
Gellan gum is a biopolymer widely used in the food, pharmaceutical, chemical, and agrochemical fields. Its ability to form a strong gel makes it possible to produce fluid gels. These materials present an apparent yield ...