A5072979548- Epoxy Resin Curing Processes
- Microencapsulation and Drying Processes
- Natural Fiber Reinforced Composites
- Agricultural and Food Sciences
- Nanocomposite Films for Food Packaging
- Coffee research and impacts
- Lignin and Wood Chemistry
- Advanced Cellulose Research Studies
- Polysaccharides Composition and Applications
- Mechanical Behavior of Composites
- Meat and Animal Product Quality
- Food composition and properties
- Phytochemicals and Antioxidant Activities
- Injection Molding Process and Properties
- Advanced Chemical Sensor Technologies
- Pickering emulsions and particle stabilization
- Fermentation and Sensory Analysis
- Proteins in Food Systems
- Flame retardant materials and properties
- Synthesis and properties of polymers
- Food Chemistry and Fat Analysis
- Sensory Analysis and Statistical Methods
- Thermal and Kinetic Analysis
- Microbial Metabolites in Food Biotechnology
- Rheology and Fluid Dynamics Studies
Universidade Federal do Rio de Janeiro
2016-2025
Universidade Federal da Paraíba
2025
Sociedade Brasileira de Química
2024
University of Delaware
1996-2021
University of California, Berkeley
2021
Universidade Federal de Santa Maria
2021
Centro Universitário da Cidade
2021
Case Western Reserve University
2019
Universidade Estadual de Campinas (UNICAMP)
2014
Brazilian Agricultural Research Corporation
2014
Abstract In the last decade, use of multivariate statistical techniques developed for analytical chemistry has been adopted widely in food science and technology. Usually, chemometrics is applied when there a large complex dataset, terms sample numbers, types, responses. The results are used authentication geographical origin, farming systems, or even to trace adulteration high value‐added commodities. this article, we provide an extensive practical pragmatic overview on main tools studies,...
Green coconut fiber, a lignocellulosic material native from Brazilian northeast coast, was chemically treated by three methods: NaOCl, NaOCl/NaOH or H2O2. The effect of these treatments on the structure, composition and properties fibers studied using SEM, FTIR, XPS, TGA other analyses. SEM showed that treatment with H2O2 is most efficient in terms waxy fatty acid residues removal but it does not modify surface chemical composition, can be seen FTIR wettability results. analyses revealed...
Research involving lignin use is not new. For many years, the macromolecule was underestimated in its potential and burned for energy pulp paper industries. However, with advent of biorefinery on valorization lignocellulosic fractions, receiving greater motivation to be researched. Of applications, most profitable one conversion into carbon fiber. Lignin-based fibers can reduce manufacturing price this fiber values than 35%, besides using a renewable material highly sustainable appellation....
Environmental, economic, and technical reasons justify research efforts aiming to provide natural materials with possibility of replacing synthetic fiber composites. Commonly known lignocellulosic fibers, such as jute, sisal, flax, hemp, coir, cotton, wood, bamboo have not only been investigated reinforcement polymeric matrices but already applied in automobile components. Less common curaua, henequen, fique, buriti, olive husk, kapok are recently being studied potential owing their...
Passion fruit mesocarp flour (MF) is a material of low-cost, because it can be produced from industrial processing juices. The aim this study was to develop flexible films based on MF, and characterize their barrier, chemical, microscopic, thermal mechanical properties, as well evaluate the rheological properties filmogenic solution used produce them. use clay nanoparticles (NP) also investigated. Films MF were prepared by casting method, with glycerol plasticizer. film forming more viscous...
The influence of encapsulating carbohydrates (EC) with varying properties on the technological and functional jussara pulp microparticles produced by spray drying were evaluated using experimental design. Microparticles sodium octenyl succinate (OSA) starch at 0.5 core to EC ratio mixtures inulin maltodextrin 1.0 2.0 showed darker color, higher anthocyanins contents antioxidant activity. Seven showing high water solubility desirable surface morphology. Hygroscopicity (10.7% 11.5%)...
The majority of the published bio-based benzoxazine research has focused almost exclusively on different phenolic and amine compounds, while aldehyde portion oxazine ring remains same.
CLA was microencapsulated by spray drying in ten varied wall systems (WS) consisting of pea protein isolate or concentrate (PPC) alone at core:WS ratios (1:2; 1:3 and 1:4), blended with maltodextrin (M) carboxymethylcellulose a protein:carbohydrate ratio 3:1. The physical–chemical properties the microparticles were characterised core retention, microencapsulation efficiency (ME), particle size moisture. CLA:M:PPC (1:1:3) showed most promising results, thus we evaluated effect M addition WS...
The aim of this study was to characterize the penicillin-loaded microbeads composed alginate and octenyl succinic anhydride (OSA) starch prepared by ionotropic pregelation with calcium chloride evaluate their in vitro drug delivery profile. beads were characterized size, scanning electron microscopy (SEM), zeta potential, swelling behavior, degree erosion. Also, possible interaction between penicillin biopolymers investigated differential calorimetry (DSC), powder X-ray diffraction (XRD),...
Abstract We aimed at investigating oxidative stability and changes in fatty acid tocopherol composition of extra virgin olive oil (EVOO) comparison with refined seed oils during short‐term deep‐frying French fries, the fries deep‐fried EVOO. EVOO samples from Spain, Brazil, Portugal, soybean sunflower were studied. Oil used for 180 °C, up to 75 min successive frying. Tocopherol determined fresh spent vegetable oils. Tocopherol, acid, volatile (by SPME–GC–MS) also oxidation was monitored by...
The disposal of residues from the agro‐industry and consequent waste valuable substances are a problem in Brazil many countries. Ubá mango is main variety used by industry its waste, consisting peel seed, not used. seed kernel composed mainly starch, which biopolymer capable replacing fossil origin polymers. In this paper, starch extracted (78.42% w/w) it chemically modified esterification reaction with octenyl succinic anhydride (OSA). native then characterized using particle size...
Given the broad acceptance of extruded products in Brazil and nutritional quality rice brewer's spent grain (BSG), this study aimed at evaluating effect extrusion temperature (100–160 °C) amount BSG (0–30% db) on physical properties puffed snacks. Extrusion was carried out using a twin-screw extruder. A factorial design proposed with two factors, content, three center points order to analyze their influence some response variables, such as specific mechanical energy (SME) input, output,...