A5088503138- Nanomaterials for catalytic reactions
- Adsorption and biosorption for pollutant removal
- Graphene and Nanomaterials Applications
- Enzyme Production and Characterization
- Microbial Metabolites in Food Biotechnology
- Nanoparticle-Based Drug Delivery
- Geography and Environmental Studies
- Ultrasound and Cavitation Phenomena
- Enzyme Catalysis and Immobilization
- Carbon Dioxide Capture Technologies
- Environmental remediation with nanomaterials
- Gold and Silver Nanoparticles Synthesis and Applications
- Agricultural and Food Sciences
- Collagen: Extraction and Characterization
- Covalent Organic Framework Applications
- Graphene research and applications
- Minerals Flotation and Separation Techniques
- Conducting polymers and applications
- Copper-based nanomaterials and applications
- Polysaccharides and Plant Cell Walls
- Iron oxide chemistry and applications
- Polysaccharides Composition and Applications
- Protein Hydrolysis and Bioactive Peptides
- Advanced Sensor and Energy Harvesting Materials
- Pigment Synthesis and Properties
Universidade Federal Rural de Pernambuco
2020-2024
University of Lisbon
2004
Pectinex Ultra SP-L, a commercial enzyme preparation with fructosyltransferase activity, was successfully immobilized by covalent binding to Fe3O4–chitosan- magnetic nanoparticles. Immobilization carried out according 23-full factorial design where glutaraldehyde concentration, activation time and of contact between support were selected as the independent variables immobilization yield response. The highest (94.84%) obtained using 3.0% (v/v) times 180 30 min, respectively. biocatalyst,...
This study investigates the use of silver nanoplatelets (AgNPs) coupled with oxide materials to enhance photocatalytic processes for degradation organic contaminants. Zinc (ZnO) nanoflowers were synthesized via microwave-assisted hydrothermal reaction, while Ni-Al-Oxide flocculated nanomaterials prepared from layered double hydroxide precursors and calcined. AgNPs produced using colloidal anisotropic growth (30 40 nm). Photocatalytic Remazol Black 5 dye (RB5) ZnO Methylene Blue (MB) showed...
AbstractCollagenolytic proteases produced by Aspergillus heteromorphus URM0269 were extracted using a PEG/sulfate aqueous two-phase system (ATPS). A 23 factorial design was performed to analyze the independent variables: PEG molar mass (MPEG), concentration (CPEG), and sulfate (Csulf). The also evaluated for their optimum pH stability at different levels (4.0 − 11.0) after 20 h of incubation. Collagen from mutton snapper (Lutjanus analis) skin acetic acid (0.5 mol L−1). enzyme preferentially...
pectinase was immobilized on magnetic nanoparticles coated with calcium alginate for pectin hydrolysis in guava juice by a stirred electromagnetic reactor (SER). The average crystallite size estimated the Scherrer formula 33.7 nm. reaction rate SER (701.7 U/mL) almost twice that of static process (362.5 U/mL). Both processes displayed sigmoidal trend positive cooperativity (