Abstract Swine manure is applied in agricultural fields as a source of nutrients for plant growth, however, excessive application over the years can promote soil phosphorus (P) accumulation. The objective of this study was to establish the environmental soil P threshold based on the degree of P saturatio...
Abstract The effectiveness soil cover in no-till is relating to quantity and quality of the phytomass produced by crops in rotation and, its persistence over the soil depends on residues decomposition. The objective of this study was to evaluate the phytomass production, decomposition rate and the half-l...
Abstract The objective was to undertake the visual evaluation of soil structure in maize and forage grasses intercropping under no-tillage. The experiment was carried out in a rural property located in North Paraná State, Brazil, where there were five parallel areas with the following treatments: maize ...
Abstract The no-tillage system associated with crops rotation affects the dynamics of soil organic matter, influencing the formation, reorganization and stabilization of aggregates and the carbon content (C) into soil aggregates. The aim of this study was to evaluate the effect of crop rotations under no...
Abstract Despite its potential in the production of polymers from renewable sources, D-limonene faces difficulties in its polymerization, resulting in low monomer conversion and molar mass. In order to investigate the non-ideality inherent kinetics, this work explores different modeling strategies for D-...
Abstract This work reports the study of the potential application of Zn/TiO2 catalysts, obtained by the sol-gel method, in processes of environmental decontamination through the reactions of photodegradation of textile dye, followed by electrospray mass spectrometry. The catalysts synthesis was performed...
Espectrometría de Masas en Tándem/métodos,
Colorantes,
Dominio Catalítico,
Descontaminación/métodos,
Biodegradación Ambiental,
Microscopía Electrónica de Rastreo,
Aguas Residuales,
Catálisis,
Compuestos Azo/toxicidad,
Espectrometría de Masa por Ionización de Electrospray,
Restauración y Remediación Ambiental/métodos,
Fotoquímica,
Fotobiorreactores,
Textiles/toxicidad,
Modelos Teóricos
Abstract Pigments produced by submerged fermentation of three filamentous fungi isolated from Brazilian caves, namely Aspergillus keveii, Penicillium flavigenum, and Epicoccum nigrum, were submitted to spray drying in presence of the adjuvants maltodextrin, modified starch or gum arabic. Yellow fine powd...
Pigmentos Biológicos/biosíntesis,
Goma Arábiga,
Maltosa/análogos & derivados,
Almidón/biosíntesis,
Maltosa/biosíntesis,
Aspergillus,
Hongos/metabolismo,
Cuevas/microbiología,
Modelos Teóricos,
Brasil,
Hongos/clasificación
Abstract This study describes the use of bentonite in suspension for the caffeine adsorption (pollutant of emerging concern) by taking different conditions of the pH, adsorbent mass, adsorbent calcination temperature and interferents into account. The results were compared with those obtained using bento...
Abstract This study aims to find the best conditions for the extraction of Zingiber officinale essential oil using the supercritical fluid extraction (SFE), steam distillation (SD) and hydrodistillation (HD) techniques, regarding the maximum oil yield. For the HD technique is evaluated the best ratio bet...
Resumo Pretende-se refletir sobre as dificuldades e potencialidades na aplicação da Educação Problematizadora em um programa de residência multiprofissional em Saúde, na perspectiva do fortalecimento do Sistema Único de Saúde (SUS) por meio da qualificação das ações pedagógicas nesse campo. ...
