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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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 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,...

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...

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...

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...

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...

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...

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...

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

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 ...

The seaweed Rugulopteryx okamurae, from the Pacific Ocean, is considered an invasive species in the Mediterranean Sea. In this work, the use of this seaweed is proposed for the development of bio-based plastic materials (bioplastics) as a possible solution to the pollution produced by the plastic industry. The raw seaweed Rugulopteryx okamurae...

A great amount of biowastes, comprising byproducts and biomass wastes, is originated yearly from the agri-food industry. These biowastes are commonly rich in proteins and polysaccharides and are mainly discarded or used for animal feeding. As regulations aim to shift from a fossil-based to a bio-based circular economy model, biowastes are also...

This study aims to extend the range of applications of tragacanth gum by studying its incorporation into bioplastics formulation, exploring the influence that different gum contents (0–20 wt.%) exert over the thermomechanical and water uptake properties of bioplastics based on egg white albumen protein (EW). The effect of plasticizer nature was...

Porcine plasma protein is a by-product of the meat industry, which has already been applied in the manufacture of superabsorbent materials. The effects of plasticizer content (0%, 25%, 50%), together with those of the drying method (freeze-drying, thermal drying at 50◦C), during the processing of superabsorbent porcine plasma matrices were...

A natural superabsorbent polymer (SAP) material based on an acylated soy protein was studied as a green alternative to non-biodegradable SAP. In order to obtain the natural SAPs, different amounts of succinic anhydride were used as acylating agent. Once the functionalized protein was obtained, it was mixed thoroughly with glycerol and then...

Oil-in-water (o/w) emulsions stabilized by egg yolk, with a composition similar to those found in commercial mayonnaises or salad dressings, were processed in a semicontinuous device. This specially designed emulsification device consists of, basically, a vessel provided with an anchor impeller, where the continuous phase was initially placed;...

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 ...

The objective of this study was to assess the influence of reducing pH from its native value on the heat-induced gelation behaviour of egg yolk by monitoring its linear viscoelastic properties. Three acids differing in their location in the Hofmeister series were used (hydrochloric, citric, and phosphoric acids) at pH between 2 and 6. The...

Eggs have been one of the first multifunctional ingredients, well known for their whipping, gelling and emulsification properties, where the proteins are the dominant component. Egg yok is an ingredient of high nutritional value with unique sensory properties and excellent functionalitu used in the manufacture and stabilisation of...

La fracción plasmática de la sangre porcina obtenida como subproducto en la industria cárnica puede ser considerada una potencial materia prima en la formulación de materiales biodegradables con elevada capacidad absorbente, ya que en su composición presenta una gran cantidad de aminoácidos hidrofílicos. Con objeto de evaluar dicho potencial,...

Fava bean is a crop source of gelling proteins (≅ 30% d.b.). This study aimed to evaluate rheological, textural and hydration properties of gels formulated at different protein contents and pH. A Faba bean concentrate (FB) of ≅ 60% pro-tein produced by a dry fractionation method, was used (HerbaPRO FB65, Seville, Spain). FB was dispersed in...

The expansion of food production has a large environmental impact in many ways. More specifically, 30–40% of total food production is lost as wastes and/or by-products before it reaches the market. In this sense, blood is an inevitable by-product in the meat industry that typically consists of 3–5% of the total weight of the animal. The dry...