A5073455050- Protein Hydrolysis and Bioactive Peptides
- Electrospun Nanofibers in Biomedical Applications
- Enzyme Production and Characterization
- Water Quality and Pollution Assessment
- Recycling and Waste Management Techniques
- Silk-based biomaterials and applications
- Environmental Sustainability and Education
- biodegradable polymer synthesis and properties
- Anaerobic Digestion and Biogas Production
- Proteins in Food Systems
- Pesticide and Herbicide Environmental Studies
- Microbial bioremediation and biosurfactants
- Geography and Environmental Studies
- Water Quality Monitoring Technologies
- Municipal Solid Waste Management
- Essential Oils and Antimicrobial Activity
- Insect Utilization and Effects
- Enzyme-mediated dye degradation
- Radioactive element chemistry and processing
- Soil Management and Crop Yield
- Nanocomposite Films for Food Packaging
- Nanoparticles: synthesis and applications
- Dyeing and Modifying Textile Fibers
- Dye analysis and toxicity
- Tissue Engineering and Regenerative Medicine
Universidade Federal do Rio Grande do Sul
2024-2025
Universidade Federal da Fronteira Sul
2020-2024
Universidade Federal de Santa Maria
2020-2021
Abstract The addition of nanoparticles to coatings is a widely employed strategy enhance resin properties without compromising performance. Copper oxides are commonly used as additives in formulations, replacing organometallics, which prohibited due their biocidal and antifouling activities. This study focuses on synthesizing copper (II) oxide through co-precipitation for application antimicrobial coatings. synthesis process involved using sulphate (CuSO4.5H2O) precursor NaOH an alkaline...
This manuscript describes the development and characterization of electrospun nanofibers incorporating bioactive hydrolysates obtained from microbial bioconversion feathers, a highly available agro-industrial byproduct. The were characterized using different instrumental methods, their antioxidant properties toxicological potential evaluated. Keratin (KHs) produced by Bacillus velezensis P45 incorporated at 1, 2.5, 5% (w/w) into poly-ε-caprolactone (PCL; 10 15%, w/v solutions) before...
In this study, lactobionic acid (LBA) was incorporated into poly(vinyl alcohol) (PVA) and poly(ε-caprolactone) (PCL) by electrospinning. The antimicrobial effects of the nanofibers were tested using agar diffusion method. Only PVA formulations showed activity against Staphylococcus aureus. PCL containing LBA antioxidant ranging from 690.33 to 798.67 µM TEAC when ABTS characterization performed scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis,...
Bacillus sp. CL14 crude protease was partially characterized and applied to obtain antioxidant whey protein isolate (WPI) hydrolysates. Optimal activity occurred at pH 9.0 60 °C. Ca2+, Mg2+, Mn2+ (5 mM) enhanced (12-26%), whereas Co2+, Cu2+, Fe2+, Zn2+ inhibited it (50-94%). At 1% (v/v), Tween 20 Triton X-100 activities (21-27%), β-mercaptoethanol decreased (15%), dimethyl sulfoxide (DMSO) had no effect. Sodium dodecyl sulfate (SDS; 0.1%, w/v) increased by 36%. Complete inhibition...
The release of bioactive peptides from proteins can be achieved by enzymatic hydrolysis, whereby mainly commercial enzymes are applied, although increasing attention is focused on alternative proteases. Hence, crude proteases Bacillus sp. CL14, CL18, and CL33A were investigated to obtain antioxidant hydrolysates bovine sodium caseinate (NaCAS) soy protein isolate (SPI). able hydrolyze both substrates. Hydrolysis improved the radical-scavenging, Fe2+-chelating, reducing power abilities NaCAS...
Bioactive keratin hydrolysates obtained from microbial treatment of poultry feathers were incorporated into polycaprolactone (PCL) nanofibers using the electrospinning method. The nanofiber mats characterized by scanning electron microscopy (SEM),...
Microbial fermentation represents an interesting strategy for the management and valorization of agro-industrial byproducts. In this study, proteolytic strain Bacillus sp. CL18 was used to produce bioactive hydrolysates during submerged cultivation with various protein-containing substrates, including byproducts from poultry (feathers), cheese (whey), fish (scales), vegetable oil (soybean meal) industries. The feather (BFHs) showing high antioxidant activity were incorporated in poly(vinyl...
This study investigates the antifungal potential of encapsulated essential oil (EO) from
A separação granulométrica visa separar e classificar materiais de acordo com seus diâmetros. Um método em destaque para a realização dessa é o peneiramento. No peneiramento, alimenta-se um conjunto peneiras uma quantidade massa predeterminada do material que se deseja classificar. Sob agitação, os particulados tendem passar ou reter-se nas conforme seu diâmetro abertura das peneiras. Assim, técnica peneiramento muito empregada realizar classificação particulados, além ser utilizada...