A5006982179- Adsorption and biosorption for pollutant removal
- Heavy Metals in Plants
- Extraction and Separation Processes
- Agricultural and Food Sciences
- Phytochemistry Medicinal Plant Applications
- Chemical and Physical Properties in Aqueous Solutions
- Constructed Wetlands for Wastewater Treatment
- Heavy metals in environment
- Analytical chemistry methods development
- Crystallization and Solubility Studies
- Business and Management Studies
- Education and Public Policy
- Polysaccharides Composition and Applications
- Food composition and properties
- Phytochemicals and Antioxidant Activities
- Therapeutic Uses of Natural Elements
- Postharvest Quality and Shelf Life Management
- Sustainability and Ecological Systems Analysis
- Membrane-based Ion Separation Techniques
- TiO2 Photocatalysis and Solar Cells
- Pickering emulsions and particle stabilization
- Nanocomposite Films for Food Packaging
- Microencapsulation and Drying Processes
- Water Quality Monitoring and Analysis
- Pineapple and bromelain studies
Universidade Federal da Fronteira Sul
2018-2024
Universidade Estadual de Maringá
2013-2015
Universidade Estadual do Oeste do Paraná
2010-2013
Universidade do Estado do Pará
2012
Universidade Estadual de Campinas (UNICAMP)
2010
The growing concern on environment preservation and the impact of packaging from non-renewable materials improve interest at biodegradable active packages development for food applications. aim was to develop starch films with yerba mate extract (YME) made water: ethanol (50:50% vol/vol) 50°C followed by characterization. YME applied cassava (control, 5, 10, 15, 20%). thickness, water vapor permeability (WVP), tensile strength, elongation as well Young's Modulus, solubility, phenolic...
In this work, ion exchange experimental data were obtained in batch operation for the binary systems Cu2+−Na+, Zn2+−Na+, and Zn2+−Cu2+ ternary system Cu2+−Zn2+−Na+. The ionic exchanger employed was cationic resin Amberlite IR 120. at total concentrations of (1, 3, 5) mEq·L−1. capacity 120 by column technique. All experiments carried out 25 °C. To model equilibrium, Mass Action Law used. considered both ideal nonideal behavior to represent data. nonideality solution phase described Bromley's...
Abstract Yerba mate is a tree natural from South America, traditionally daily consumed as hot ( chimarrão ) or cold tereré and roasted leaves (mate tea) infusions, being an important source of polyphenols flavonoids in human nutrition. To produce bioactive-rich extracts yerba mate, oven-dried at 35 °C three different commercial products, named M, T, S, were extracted using General Recognized Safe solvents (distilled water (W), ethanol (E), water: (1:1, v:v) (WE)). The analyzed for total...
Abstract BACKGROUND Red araçá is a Brazilian native species whose fruits are rich in phenolic acids, flavonoids, anthocyanins, and carotenoids. To preserve the properties of compounds during processing, red pulp (RAP) was encapsulated by hydrolyzed pinhão starch (PS), tara gum (TG), arabic (AG) different blends equal proportions, serving as coating material. RESULTS Fresh RAP had gallic acid equivalent 3098 mg per 100 g dry weight, 156.29 μg β ‐carotene gram total anthocyanins 18 weight...
Abstract Starch nanocrystals (SNCs) are insoluble platelet particles with multifunctional properties. SNCs production is mainly based on acid hydrolysis of cornstarch low yield. This study focuses investigating the effect pretreatments (heat‐moisture‐treatment [HMT], annealing [ANN], and sonication [SNT]) unconventional pinhão starch to produce by improve yield All starches described a first‐order model reaction shown two phases related at k values. The faster from SNT ( = 0.61 day −1 )...
Abstract Starch nanocrystals (SNC) are insoluble platelets with crystalline structures produced by acid hydrolysis. Pretreatments, including heat–moisture treatment (HMT), annealing (ANN), and sonication (SNT) can be used to improve SNC properties. They investigate the impact of these pretreatments on structure properties, hydrolysis kinetics yield, molecular structure, infrared spectroscopy, crystallinity (Xc), thermal stability. Hydrolysis native pretreated starches followed a two‐phase...
A remoção por adsorção de corantes águas residuais requer processos e adsorventes eficientes sustentáveis. Desta forma, objetivou-se estudar a do corante azul metileno (AM) utilizando zeína como material adsorvente. massa adsorvente o pH da solução, bem cinética equilíbrio foram avaliados em sistemas bateladas contendo corante, com velocidade agitação temperatura controlados. compreensão processo foi realizada ajustando os dados cinéticos aos modelos pseudo-primeira ordem, pseudo-segunda...
Native trees and fruit have great importance in culture of small centers rural areas, as well as, homemade liqueurs. However, some strategies such marketing research are necessary to help for products development or even modifications existing products. The objective was know the habits related consumption alcoholic beverages evaluate consumer's interest about liqueurs, develop standardize characterize a pineapple liqueur, besides assessing sensorial characteristics same. most interviewees...
Neste trabalho foi investigada a capacidade de biossorção do carvão ativado ósseo e bambu in natura para remoção corante Azul Metileno. Os testes cinético equilíbrio foram realizados em sistema batelada com temperatura agitação controlados 30 ºC 100 rpm, respectivamente. O tempo 6 horas o 24 fibra natura, pH 5. A adsorção aproximadamente 96% 55%, No estudo equilíbrio, quantidade removida 15,1 mg g
Neste trabalho foi realizado o estudo do mecanismo de biossorção íon metálico cádmio utilizando como biossorvente a macrófita aquática Egeria densa. Experimentos em batelada foram conduzidos com temperatura e velocidade agitação controlados por um período 2 horas uma mistura 300 mg 50 mL solução metálica concentração inicial 224,8 L
O objetivo deste trabalho foi investigar a remoção do corante azul de metileno utilizando macrófita Salvinia sp. e o palito erva-mate. Para cada biossorvente estudado foram realizados estudo da cinética adsorção equilíbrio partir experimentos em sistema batelada, misturando 0,5 g biomassa 50 mL solução com pH 5, temperatura controlada 30 °C agitação 100 rpm. tempo para ambos biossorventes 120 minutos. modelo cinético pseudo-primeira ordem descreveu melhor biossorção