A5007834008- Food Drying and Modeling
- Agricultural Engineering and Mechanization
- Agricultural and Food Sciences
- Microencapsulation and Drying Processes
- Growth and nutrition in plants
- Granular flow and fluidized beds
- Rural Development and Agriculture
- Industrial Automation and Control Systems
- Phytochemicals and Antioxidant Activities
- Magnetic and Electromagnetic Effects
- Surface Roughness and Optical Measurements
- Building Energy and Comfort Optimization
- Electronic and Structural Properties of Oxides
- Magnetic and transport properties of perovskites and related materials
- Food composition and properties
- Antioxidant Activity and Oxidative Stress
- Greenhouse Technology and Climate Control
- Microbial Metabolites in Food Biotechnology
- Industrial Vision Systems and Defect Detection
- Dye analysis and toxicity
- Bee Products Chemical Analysis
- Advanced Control Systems Design
- Safety Systems Engineering in Autonomy
- Soil Management and Crop Yield
- Manufacturing Process and Optimization
Universidade Estadual de Maringá
2007-2023
Universidade Estadual do Centro-Oeste
2004-2019
Universidade Federal de Santa Catarina
2004
Ocimum species, particularly selloi Benth, popularly known as atroveran, are notable for their significant biological properties and wide applicability in pharmaceutical, food, cosmetic industries. This study aimed to evaluate the effects of drying air temperature velocity on kinetics O. leaves a fixed-bed dryer identify most suitable mathematical model describe process. Following drying, ethanolic aqueous extracts were prepared from analyzed antioxidant activity. The results showed that had...
Desenvolveu-se um modelo matemático para estimar a concentração de água em grãos ervilha durante sua hidratação, o qual foi obtido partir balanço massa regime transiente, considerando-se volume constante e geometria esférica. Este é representado por uma equação diferencial ordinária primeira ordem possui dois parâmetros: coeficiente transferência (Ks) equilíbrio (ρAeq). Ambos foram ajustados numericamente tomando-se como critério minimização da soma dos resíduos quadráticos, utilizando-se...
To overcome the nonideality of model presented by Hsu, who assumed that soybean grains suffered no change in volume during hydration, a distributed parameter was developed following an approach similar to used but considering grain varies as function hydration time. This new presents more complex numerical solution and it compared with original Hsu at constant volume. The models were fitted experimental measurements moisture content over time least squares method. results showed increased...
Abstract Red cabbage has a high content of anthocyanin and it may become an important source this pigment. Common extraction methods are not selective, great quantity sugar is co‐extracted with the dye. This work used adsorption‐desorption process on Amberlite XAD7 Sephadex LH20 resins to partially purify anthocyanins present in whole juice red cabbage. Both succeeded anthocyanins, producing solutions up 0.5 g L−1 sugars from initial concentration more than 25 L−1. Using was possible recover...
A comparative analysis of the theoretical-experimental study, developed by Hsu on hydration Amsoy 71 soybean grain, was performed through several soaking experiments using CD 202 at 10, 20, 30, 40, and 50 °C, measuring moisture content over time. The results showed that equilibrium content, Xeq, does not depend temperature is 21% higher than found Hsu, suggesting cultivar exerts great influence Xeq. model numerically solved its parameters were adjusted least squares method, with maximum...
Este trabalho apresenta um novo modelo fenomenológico de parâmetros concentrados para a hidratação grãos soja, obtido partir balanço massa em regime transiente nos grãos, admitindo duas hipóteses básicas: 1º) variação do volume grão diretamente proporcional à da sua ao longo hidratação; e 2º) exponencial coeficiente transferência aparente função concentração água na soja. possui apenas dois parâmetros, os quais foram estimados ajuste deste às medidas umidade tempo, avaliadas várias...
The predictions of the Hsu model soybean hydration are compared with simulation results distributed parameter phenomenological (DPP) that was developed in this study. models were based on same mass balance one volume differential element model; however, admits an exponential variation concentration while DPP equal diffusion and convection fluxes at solid-fluid interface. represented by a partial second order equation relation to radial position first time, which solved numerically fitted...
The behavior of three distributed parameter mathematical models was investigated in this study with different surface boundary conditions: (1) equilibrium moisture is instantly reached at the surface, (2) content behaves as a first-order process, and (3) diffusive convective fluxes are equal grain. were numerically solved fitted to experimental data soybean grain hydration by least squares method. best model chosen analyze effective diffusion coefficient inside function time, temperature,...
Neste trabalho desenvolveu-se um modelo fenomenológico de parâmetros concentrados para a hidratação grãos soja, obtido partir balanço massa em regime transiente nos grãos, levando consideração variação do diâmetro destes ao longo processo. Os resultados das simulações deste foram comparados com as previsões modelos empíricos encontrados literatura. Tanto o quanto os validados frente dados experimentais obtidos neste nas temperaturas 10, 20, 30, 42 e 49°C. Todos representaram principais...
A mathematical model with distributed parameters was proposed to describe the absorption of water by soybeans, in order evaluate moisture content variation time inside grains. This represented a partial differential equation (second relative position and first time), whose were numerically adjusted using minimum squares method. For this purpose, available MATLAB® routines used, together experimental data obtained from hydration tests where soybeans immersed liquid at temperatures 10, 20, 30,...
ABSTRACT Thermal comfort inside broiler husbandry facilities is essential in obtaining good results the production activity. Assessment of adequate thermodynamic conditions requires measurement and control, usually implying costs specialized maintenance. The objective this research was to monitor temperature, relative humidity air speed distributions by a developed low-cost, open-source easy-to-use system, using Arduino (hardware) Scilab (software) for real-time data acquisition. Sensors...
Maltodextrin (MD) and two types of gum arabic (IRX 40642 IRX 49345) were used to encapsulate anthocyanins red cabbage. The solution the encapsulated dye was evaluated by polarized light microscopy. spray-dried powder (microspheres) containg (red cabbage juice obtained disintegration filtration) encapsulating agent characterized Scanning Electron Microscopy (SEM) water sorption isotherms; product color characterization measured using software imaging analysis (Mathematica). microspheres...
The present work shows the construction of a data acquisition system using Arduino and Scilab for integrating sensors computer. use this has ena-bled communication with some sensors, which are easily read by computer stored in file. application was conducted commercial poultry, collecting input, output, internal external parameters. distribution temperature humid-ity inside determined through sensor arrangement..
A mathematical model was developed which correlates the voltage (V) applied to electric heater in function of flow rate ( ), air temperature at entrance (Te) and desired exit (Ts) from an energy balance heater, taking into account possible heat dissipations due natural convection. The has two parameters: resistance (R) transfer coefficient for convection (h). From this model, a user-friendly simulator that contemplates distinct situations: significant trough wall (complete h ≠ 0)...
The quality control in industrial processes and production lines is increasingly rigorous due to governmental issues the competition among other industries. These make new studies this field even more important, especially on defects analysis visual inspection. Among methods of inspections commonly used highlighted ones include direct inspection that performed without aid optical devices, remote makes use instruments, both having an inspector responsible for a subjective evaluation. Such are...
Abstract The union of different devices in order to obtain a specific response for process is commonly called control system. For system, it necessary have one or more controllers. Among the most used industrial sector are PID and PI Next these controllers software. Scilab good example It characterized as free code software, with no cost its acquisition, addition having large computational power integrated tools, such Xcos, intended modeling simulation. Scilab, there Arduino. Such mixture...
Para um sistema de controle é necessário que haja ou mais controladores. Dentre os utilizados no ramo industrial, estão controladores PID e PI. Criado pelas empresas francesas INRIA ENPEC o Scilab caracteriza-se como software código livre, não apresentando custo para sua aquisição, além contar com uma ferramenta integrada chamada Xcos, destinada à modelagem simulação. a união Scilab, está Arduino. Tal mescla pode ser empregada em qualquer controle. Este trabalho objetivou, desenvolver nível...