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Biocomposite films based on κ-carrageenan/locust bean gum blends and clays : ph...

The aims of this work were to evaluate the physical and antimicrobial properties of biodegradable films composed of mixtures of κ-carrageenan (κ-car) and locust bean gum (LBG) when organically modified clay Cloisite 30B (C30B) was dispersed in the biopolymer matrix. Film-forming solutions were prepared by adding C30B (ranging from 0 to 16 wt.%) into the κ-car/LBG solution (40/60 wt.%) with 0.3 % (w/v) of glycer...

Influence of α-tocopherol on physicochemical properties of chitosan-based films

tosan has been exploited as a material for the development of edible films, and additionally can be used as a carrier of functional compounds such as α-tocopherol. The aim of this work was to evaluate the effects of the incorporation of α-tocopherol in chitosan-based films. FTIR and thermal analyses were performed and showed that the incorporation of α-tocopherol affects the chemical structure of chitosan-based...

Nanoemulsions for food applications : development and characterization

The application of nanotechnology to food, medical and pharmaceutical industries has received great attention from the scientific community. Driven by the increasing consumers’ demand for healthier and safer food products and the need for edible systems able to encapsulate, protect, and release functional compounds, researchers are currently focusing their efforts in nanotechnology to address issues relevant to...

Antimicrobial and antioxidant activities of quercetin-chitosan based edible films

Bio-based nanofilms/coatings for food applications

Edible packaging for food is one of the areas where developments are being made based on nanotechnological solutions, e.g. through the development of edible nanofilms and nanocoatings, in particular under the form of edible nanolaminates. Polysaccharides, proteins and/or lipids are used due their GRAS statute. Polysaccharide- and protein-based films/coatings provide good barriers to O2 and CO2, but are very per...

Nanotecnologia na indústria alimentar

Preparación, caracterización y comportamiento catalítico de catalizadores basad...

En el presente trabajo se presentan resultados experimentales que evidencian la degradación y mineralización de disoluciones de Orange II (0,1 mM) por medio de un catalizador basado en saponita impregnada con sales de hierro, en presencia de peróxido de hidrógeno, en un reactor cerrado perfectamente agitado. Se prepararon doce muestras, con tres cargas distintas de hierro (7,5; 13,0 y 17,0 % en peso de Fe en lo...

Fenton’s Oxidation of Orange II Solutions using Heterogeneous Catalysts B...