The equilibrium and thermodynamics of azo dye (tartrazine and allura red) biosorption onto Spirulina platensis biomass were investigated. The equilibrium curves were obtained at 298, 308, 318 and 328 K, and four isotherm ...

Neste trabalho estudou-se a cinética de secagem da cebola em camada delgada, comparando os valores da difusividade efetiva média baseados nas espessuras inicial e média das amostras. Estes resultados foram utilizados para ...

Chitosan biofilms were prepared with and without plasticizer (glycerol and sorbitol). The physical and mechanical properties of chitosan biofilms with and without plasticizer were evaluated. Chitosan was obtained from ...

Chitosan is a polysaccharide derived from chitin, mainly of crustacean shells and shrimp wastes. The utilization of chitosan is related to the molar weight and deacetylation degree of the biopolymer. The aim of this work ...

Chitosan is chitin in deacetylated form and is the main constituent of crustacean exoskeletons. Commercially, chitosan is dried in tray driers, and during the operation, polymerization may occur as the chitosan is composed ...

Neste estudo, foi avaliada a extração de gelatina a partir de cabeças de carpa comum (Cyprinus carpio) provenientes da industrialização. Para tanto, foram estudados os efeitos da concentração alcalina, o tempo de tratamento ...

O arroz é um cereal de grande consumo mundial e, sendo um produto sazonal, sua conservação e armazenagem são justificados. O Brasil é o maior produtor da América do Sul, concentrando 50% da produção na região Sul. A secagem ...

A kinetic study on the biosorption of phenol by nanoparticles from Spirulina sp. LEB 18 was carried out. The Spirulina sp. nanoparticles were prepared and characterized. Kinetic curves of phenol biosorption were obtained ...

The kinetics and mechanism of the food dye disodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfophenyl)azo)-2-naphthalenesulfonate (FD&C Red 40) adsorption onto chitosan were studied. The effects of pH (5.7 to 7.4), chitosan ...

Considering the occurrence of rice contamination by mycotoxins and the increase in rice consumption, the present work had the objective of assessing the migration of mycotoxins into the starchy endosperm during the parboiling ...

In recent times, the microalgae Spirulina platensis has been used as a functional ingredient in several food applications; its process involving drying and storage steps. Moisture equilibrium data for adsorption isotherms ...

In recent times, the microalgae Spirulina platensis has been used as a functional ingredient in several food applications; its process involving drying and storage steps. Moisture equilibrium data for adsorption isotherms ...

The moisture equilibrium isotherms of garlic and apple were determined at 50, 60 and 70 °C using the gravimetric static method. The experimental data were analysed using GAB, BET, Henderson–Thompson and Oswin equations. ...

The moisture equilibrium isotherms of chitosan were determined at 20, 30, 40, 50 and 60 °C, using the gravimetric static method. Experimental data were analyzed by the GAB, Oswin, Halsey and Smith equations. Isosteric heat ...

A quitina, b-(1-4)-N-acetil-D-glucosamina, é encontrada nos exoesqueletos de crustáceos, na parede celular de fungos e em outros materiais biológicos, e é através dela que se obtém a quitosana, b-(1-4)-Dglucosamina. A ...

A quitosana é um biopolímero derivado da quitina, que é encontrada na carapaça e exoesqueleto de crustáceos e outras fontes. O objetivo deste trabalho foi a obtenção de quitosana a partir de carapaças de siri, sendo esta ...

The aim of the study was the optimisation of Spirulina platensis drying on convective hot air through the response surface methodology. The responses were thiobarbituric acid (TBA) and phycocyanin loss percentage values ...

The use of chitosan in diverse areas is directly related to the polymer’s molecular weight and degree of deacetylation, which depends on the conditions of chitin deacetylation. The aim of the present study consisted of ...

he aim of this work was to study the drying of Spirulina platensis, evaluating the final product characteristics about its phycocyanin content and its protein solubility in water. Two drying techniques were used: the ...

The aims of this study were to compare three treatments in the chemical hydrolysis reaction of bleached oil from carp (Cyprinus carpio) heads and to obtain polyunsaturated fatty acid concentrates by urea complexation. The ...