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      Selección de un Estabilizante y Comportamiento durante Almacenamiento en Refrigeración de un Complemento Nutricional Líquido Translated title: Selection of a Stabilizer and Behavior during Cold Storage of a Liquid Nutritional Supplement

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          Abstract

          Resumen. Con el propósito de estabilizar un complemento nutricional líquido para niños, se ensayaron desde el punto de vista reológico; en una primera etapa, tres mezclas de hidrocoloides (T1: 100% goma xántica, T2: 50% goma xántica, 50% goma algarrobo y T3: 33, 3% goma xántica, 33,3% goma algarrobo, 33,3% carragenina kappa), dosificados en un nivel del 0,2% a las que se les determinó el efecto sobre las características sensoriales de importancia para la población a la que estaba dirigida. En una segunda etapa se evaluó la estabilidad reológica, sensorial y microbiológica de una bebida mantenida durante 20 días en refrigeración y estabilizada con 0,1% (T1'), 0,2% (T2') y 0,3% (T3') del hidrocoloide seleccionado en la etapa uno. Se concluye que la mezcla en partes iguales de los tres hidrocoloides (T3), fue la preferida por los niños y que los niveles de uso T1' , T2' y T3' no mostraron diferencias significativas para las variables analizadas, pero la mejor opción y la menor varianza fueron para la bebida estabilizada con 0,2% (T2') del hidrocoloide; no obstante, el tratamiento de menor costo fue para la bebida estabilizada con 0,1% (T1') del hidrocoloide.

          Translated abstract

          Abstract. With the purpose of stabilizing a liquid nutritional supplement for children, were assayed from the rheological point of view, in a first stage, three mixtures of hydrocolloids (T1:100% xanthan gum, T2: 50% xanthan gum, 50% locust bean gum and T3: 33, 3% xanthan gum, 33% locust bean gum, 33.3% kappa carrageenan), dosed at a level of 0.2%. It was determined the effect on the sensory characteristics of importance to the people which was directed. In a second step we evaluated the rheological, sensory and microbiological stability in a drink maintained for 20 days under refrigeration and stabilized with 0.1% (T1'), 0.2% (T2') and 0.3% (T3') of hydrocolloid selected in step one. We conclude that the mixture of equal parts of three hidrocololids (T3), was preferred by children and that levels of use T1' , T2' and T3' showed no significant differences for the variables analyzed, but the best option and lower variance were for drink stabilized with 0.2% (T2' ) of the hydrocolloid; however, treatment of lower cost was for the beverage stabilized with 0.1% (T1') of hydrocolloid.

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          Most cited references42

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          La evaluación sensorial de los alimentos en la teoría y la práctica

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            Colloidal aspects of texture perception.

            Recently, considerable attention has been given to the understanding of texture attributes that cannot directly be related to physical properties of food, such as creamy, crumbly and watery. The perception of these attributes is strongly related to the way the food is processed during food intake, mastication, swallowing of it and during the cleaning of the mouth after swallowing. Moreover, their perception is modulated by the interaction with other basic attributes, such as taste and aroma attributes (e.g. sourness and vanilla). To be able to link the composition and structure of food products to more complicated texture attributes, their initial physical/colloid chemical properties and the oral processing of these products must be well understood. Understanding of the processes in the mouth at colloidal length scales turned out to be essential to grasp the interplay between perception, oral physiology and food properties. In view of the huge differences in physical chemical properties between food products, it is practical to make a distinction between solid, semi-solid, and liquid food products. The latter ones are often liquid dispersions of emulsion droplets or particles in general. For liquid food products for instance flow behaviour and colloidal stability of dispersed particles play a main role in determining their textural properties. For most solid products stiffness and fracture behaviour in relation to water content are essential while for semi-solids a much larger range of mechanical properties will play a role. Examples of colloidal aspects of texture perception will be discussed for these three categories of products based on selected sensory attributes and/or relevant colloidal processes. For solid products some main factors determining crispness will be discussed. For crispiness of dry cellular solid products these are water content and the architecture of the product at mesoscopic length scales (20-1000 microm). In addition the distribution of water at mesoscopic length scales was found to be important. For semi-solid foods, sensory characteristics as spreadability, watery and crumbliness are primarily determined by food properties at mesoscopic length scales. Crumbliness is directly related to the formation of free running cracks that occur during eating of the product. Exudation of the continuous liquid phase of gels during compression gives rise to watery/juicy sensory attributes. For liquid food products, colloidal interactions of emulsion droplets, particles, proteins, and polysaccharides with saliva and oral surfaces were found to affect texture characteristics as creaminess, fattiness, roughness and astringency.
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              Lubrication, Adsorption, and Rheology of Aqueous Polysaccharide Solutions

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                rfnam
                Revista Facultad Nacional de Agronomía Medellín
                Rev. Fac. Nac. Agron. Medellín
                Facultad de Ciencias Agrarias - Universidad Nacional de Colombia (Medellín, Antioquia, Colombia )
                0304-2847
                June 2012
                : 65
                : 1
                : 6531-6540
                Affiliations
                [03] orgnameUniversidad Nacional de Colombia
                [02] Medellín orgnameUniversidad Nacional de Colombia orgdiv1Facultad de Ciencias Agrarias orgdiv2Departamento de Ingeniería Agrícola y Alimentos Colombia
                [01] Itagüí Antioquia orgnameTecnas S.A Colombia
                Article
                S0304-28472012000100023
                baeb3419-f67e-400b-8df7-b2e295dff8f8

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 02 March 2011
                : 18 January 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 32, Pages: 10
                Product

                SciELO Colombia

                Categories
                Artículos

                Food technology,food desing,nutritional supplement,product stability,estabilidad en productos,complemento nutricional,diseño de alimentos,Tecnología de alimentos

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