BENGOECHEA RUIZ , Carlos

La asignatura Materiales Poliméricos se imparte dentro del Grado de Ingeniería de Materiales de la Universidad de Sevilla, siendo recibida también por alumnos de doble grado de Ingeniería de Materiales y Física o Química. La diferente formación de partida de los tres grupos que asisten a la misma aula a recibir la docencia de la asignatura debe...

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Cocoa pod husk (70–75 wt.% of the fruit) is a waste that can be used containing cellulose (c.a. 35.4 wt.%). The present work evaluates the valorization of cocoa pod husk as a potential source of cellulose to obtain carboxymethylcellulose. A yield of 21.9% of extracted cellulose was obtained with respect to the cocoa husk flour used. Different...

The development of plastic materials based on cassava reduces the dependence on non-biodegradable petroplastics, and enhances the sustainability of the cassava value chain. In this sense, cassava starch (CS) is used as a reinforcer of biocomposites that also contain brown seaweed Rugulopteryx okamurae (RO). RO is an invasive species whose...

Rugulopteryx okamurae (RO) is an invasive brown seaweed that causes severe environmental problems in the Mediterranean Sea. This work proposed an extraction method that enables their use as a raw material for producing sodium alginate. Alginate was successfully extracted from this invasive seaweed, with its gelling performance in the presence...

The present study explored the utilization of Rugulopteryx okamurae (RO), an invasive brown seaweed, as a renewable raw material for plastic materials based on biopolymer blends. The goal of this study was to improve the previously observed poor mechanical properties of materials based on single biopolymer RO. To enhance these properties, two...

Seaweeds, rich in high-value polysaccharides with thickening/gelling properties (e.g., agar, carrageenan, and alginate), are extensively used in the food industry for texture customization and enhancement. However, conventional extraction methods for these hydrocolloids often involve potentially hazardous chemicals and long extraction times. In...

Cocoa pod husk (70-75 wt.% of the fruit) is a waste that can be used containing cellulose (c.a. 35.4%). The present work evaluates the valorization of cocoa pod husk as a potential source of cellulose to obtain carboxymethylcellu-lose. A yield of 21.9% of extracted cellulose was obtained with respect to the cocoa husk flour used. Different...

Seaweed, a diverse and abundant marine resource, holds promise as a renewable feedstock for bioplastics due to its polysaccharide-rich composition. This review explores different methods for extracting and processing seaweed polysaccharides, focusing on the production of alginate plastic materials. Seaweed emerges as a promising solution, due...

La presente invención se refiere a un método de obtención de un material bioplástico con capacidad absorbente de carácter biodegradable mediante la incorporación de carbonato o bicarbonato sódico y/o ácido cítrico, maleico, fumárico o adípico a una mezcla

El presente trabajo tiene como objetivo el análisis del efecto que tiene el empleo de aplicaciones informáticas de uso común en estudiantes de Máster, determinando cuáles pueden adaptarse fácilmente a clases presenciales en un entorno único como es el actual, donde la enseñanza ha tenido que adaptarse forzosamente, debido a las excepcionales...

The growing concern about reducing carbon footprint has led to the progressive replacement of traditional polymeric materials by natural-based biodegradable materials. However, materials from natural sources (i.e., plants) typically possess poorer mechanical properties when compared to conventional plastics. To counterbalance this, they need to...

En este trabajo se estudia la influencia del pH en bioplásticos de plasma sanguíneo, en los que ya ha sido demostrada su capacidad superabsorbente. Una modificación en el pH tiene una fuerte influencia en el comportamiento de las proteínas y, por tanto, en las propiedades de los bioplásticos que se obtienen a partir de ellas. Así, el cambio más...

El presente estudio se ha realizado en la asignatura Ingeniería Química perteneciente al tercer curso del Grado de Química impartido en la Universidad de Sevilla (España). La asignatura "Ingeniería Química" es una asignatura obligatoria de 9 créditos ECTS. Se trata de la primera asignatura dentro del área de ingeniería química impartida en el...

Rugulopteryx okamurae (RO) is an invasive brown seaweed that causes severe environmental problems in the Mediterranean Sea. This work proposed an extraction method that enables their use as a raw material for producing sodium alginate. Alginate was successfully extracted from this invasive seaweed, with its gelling performance in the presence...

La indústria del polímer es va impulsar a mitjans del segle XX quan es va fer factible la producció industrial. Avui en dia és molt difícil trobar molts objectes quotidians que no siguin de plàstic o que contenen peces de plàstic. Així, la ciència i la tecnologia dels polímers són una àrea essencial en el currículum d'enginyeria de materials,...

Bioplastics are an alternative to reduce the environmental damage caused by petroleum-based plastics. However, the effect of primary recycling (reprocessing) of bioplastics from biomass resources has not yet been well studied. If successful, this would boost the landing of recyclable and biodegradable bio-based materials to the market. In order...

The replacement of common acrylic derivatives by biodegradable materials in the formu lation of superabsorbent materials would lessen the associated environmental impact. Moreover, the use of by-products or biowastes from the food industry that are usually discarded would promote a desired circular economy. The present study deals with the...

Porphyra dioica macroalgae can be regarded as a food-grade protein source that can be used for the stability of dispersed food systems. This work is focused on the foaming properties of a seaweed protein concentrate (SWE) from Porphyra dioica. The characterisation of air-water (A/W) interfacial layers formed after the SWE adsorption was carried...

Se ha realizado un estudio de la distribución del tamaño de gotas y de las propiedades viscoelásticas lineales de emulsio- nes concentradas de aceite en agua, estabilizadas con dife- rentes proteínas (cangrejo, gluten y soja). Los sistemas estu- diados siempre presentan un comportamiento típico de emulsiones altamente ...

Corona treatment (CT), a surface treatment widely used in the plastic industry, can be used to alter the properties of cassava starch. In the present work, CT was performed on dry granular starch (DS), water-suspended humid granular starch (HS), and gelatinized starch (GS). Different properties and structural characteristics of treated starches...

Many food products are thermodynamically unstable emulsions (butter, margarine, mayonnaise, etc.), which can reach a kinetic stability through a convenient formulation and processing. There is a clear codependence between the stability of a food emulsion and its rheology, mainly dictated by the microstructure (i.e. the droplet size...

La inulina es un carbohidrato no digerible que está presente en muchos vegetales, frutas y cereales. En la actualidad, se extrae industrialmente de la raíz de la achicoria y se utiliza ampliamente como ingrediente en alimentos funcionales (e.g. productos lácteos). En este trabajo de investigación se estudió el ...