A5035678983- Adsorption and biosorption for pollutant removal
- Essential Oils and Antimicrobial Activity
- Plant Pathogenic Bacteria Studies
- Dye analysis and toxicity
- Enzyme-mediated dye degradation
- Microbial bioremediation and biosurfactants
- Plant-Microbe Interactions and Immunity
- Dyeing and Modifying Textile Fibers
- Plant Pathogens and Fungal Diseases
- Pesticide and Herbicide Environmental Studies
- Bioactive Compounds and Antitumor Agents
- Nanoparticles: synthesis and applications
- Agricultural and Food Sciences
- Pharmaceutical and Antibiotic Environmental Impacts
- Antimicrobial agents and applications
- Analytical chemistry methods development
- Biochemical and Structural Characterization
- Water Quality Monitoring and Analysis
- Curcumin's Biomedical Applications
- Food Safety and Hygiene
- Oral microbiology and periodontitis research
- Microplastics and Plastic Pollution
- Cassava research and cyanide
- Banana Cultivation and Research
- Listeria monocytogenes in Food Safety
Universidade do Estado de Santa Catarina
2023-2025
Universidade Estadual Paulista (Unesp)
2016-2024
Universidade de São Paulo
2021-2023
Universidade Federal de São Carlos
2015
Abstract Zinc oxide nanoparticles (ZnO NPs) are one of the most widely used nanoparticulate materials due to their antimicrobial properties, but main mechanism action (MOA) has not been fully elucidated. This study characterized ZnO NPs by using X-ray diffraction, FT-IR spectroscopy and scanning electron microscopy. Antimicrobial activity against clinically relevant bacteria Escherichia coli , Staphylococcus aureus Pseudomonas aeruginosa Gram-positive model Bacillus subtilis was evaluated...
Isobavachalcone (IBC) is a natural prenylated chalcone with broad spectrum of pharmacological properties. In this work, we newly synthesized and investigated the antibacterial activity IBC against Gram-positive, Gram-negative mycobacterial species. was active Gram-positive bacteria, mainly Methicillin-Susceptible Staphylococcus aureus (MSSA) Methicillin-Resistant (MRSA), minimum inhibitory concentration (MIC) values 1.56 3.12 µg/mL, respectively. On other hand, not able to act species (MIC >...
Abstract Activated carbon is known to be an effective adsorbent for textile dye removal. However, the limited alternatives of materials have resulted in reliance on activated carbon, preventing exploration potentially cheaper and more alternatives. Thus, this work aimed immobilize Microcoleaceae ( Arthrospira platensis ) cross‐linked alginate biospheres (designated SAAC SAM, respectively), producing novel adsorption. The were characterized through FT‐IR SEM analyses. adsorption experiments...
Plant diseases caused by phytopathogens are responsible for significant crop losses worldwide. Resistance induction and biological control have been exploited in agriculture due to their enormous potential. In this study, we investigated the antimicrobial potential of endophytic fungi leaves petioles medicinal plants Vochysia divergens Stryphnodendron adstringens located two regions high diversity Brazil, Pantanal, Cerrado, respectively. We recovered 1,304 fungal isolates based on...
Abstract The development of efficient and environmentally friendly plant protection systems is one the major challenges for a sustainable agriculture future. Citrus canker caused by pathogen Xanthomonas citri subsp. ( X . ) affects all cultivated citrus species worldwide responsible enormous economic losses restrictions in international trade. Currently used commercial copper‐based formulations are origin contamination soil groundwater, affecting local ecosystems human health. A copper‐free...
Curcumin is the main constituent of turmeric, a seasoning popularized around world with Indian cuisine. Among benefits attributed to curcumin are anti-inflammatory, antimicrobial, antitumoral, and chemopreventive effects. Besides, inhibits growth gram-positive bacterium Bacillus subtilis. The anti-B. subtilis action happens by interference division protein FtsZ, an ancestral tubulin widespread in Bacteria. FtsZ forms protofilaments GTP-dependent manner, concomitant recruitment essential...
Plant Essential Oils and their constituents are well-known for properties as antimicrobial agents labeled Generally Recognized Safe (GRAS), prompting studies around usage in the control of food-borne microorganisms phytopathogens. In this study, we evaluated Oregano Oil (OEO), Thymol (THY) Carvacrol (CAR) Xanthomonas citri subsp. ( X. ). vitro antibacterial assays revealed that CAR THY inhibit growth at concentrations 100 µg.mL -1 114 , lower than OEO (136 Bactericidal effects were observed...
Waste from textile industries can severely harm the environment. Dyes are main residues of these effluents. Saccharomyces cerevisiae is already known to be an efficient adsorbent for removal dyes. However, lack applicability and limitation use cell biomass in industrial treatment makes it impossible apply them. Thus aim this work was immobilize S. cross-linked chitosan beads by two different techniques (contact immobilization encapsulation polymer matrix), proposing new materials adsorption....
Abstract A versatile peptide‐based toolbox for surface functionalization was established by a combination of universal material binding peptide (LCI‐anchor peptide) and sortase‐mediated bioconjugation (sortagging). This facilitates either as one‐ or two‐step strategy. In the case one‐step strategy, desired functionality directly introduced to LCI. For LCI modified with reactive group, which can be further functionalized (e.g., employing “click” chemistry). Sortagging LCI, sortase from...
The aim of the study is to evaluate hexanoic acid (HA) as an alternative manage citrus canker.The minimal growth inhibitory concentration HA against Xanthomonas citri subsp. was determined at 2·15 mmol l-1 using a respiratory activity assay. Growth curves different pH values showed that inhibition not due media acidification induced by HA. germination rate and root elongation Lactuca sativa seeds exposed concentrations (varying from 0·86 5·16 ) were assessed screen for phytotoxicity....
Microorganisms are the primary responsible for food poisoning and spoilage. The purpose of this study was to evaluate different fruit washing methods with tap water, electrolyzed water rhamnolipids solution produced by Pseudomonas aeruginosa LBI, in order inhibit microbial growth. tested organism Eugenia uniflora. fruits were washed periodically inoculated into culture media count colonies on surface. It also observed deterioration level after each treatment. results showed that treatment...
RESUMO Os efluentes têxteis liberam grandes quantidades de resíduos corantes no meio ambiente, poluindo e alterando todo o ecossistema aquático. Além da poluição visual os compostos possuem alta toxicidade, quando não tratado corretamente podem gerar bioacumulação na biota. A levedura Saccharomyces cerevisiae, comumente utilizada como biocatalizador nas indústrias, é um possível adsorvente, devido à estrutura química composta pela parede celular, contendo grupos amino sítio ativo possíveis...
Abstract Citrus canker is an infectious bacterial disease and one of the major threats to orange juice industry, a multibillion-dollar market that generates hundreds thousands jobs worldwide. This caused by Gram-negative bacterium Xanthomonas citri subsp. . In Brazil, largest producer exporter concentrate juice, control citrus exerted integrated management practices, in which cupric solutions are intensively used orchards refrain spreading. Copper ions accumulate as heavy metals toxic...
Drug-resistant bacteria constitute a big barrier against current pharmacotherapy. Efforts are urgent to discover antibacterial drugs with novel chemical and biological features. Our work aimed at the synthesis, evaluation of effects, toxicity licochalcone C (LCC), naturally occurring chalcone. The synthetic route included six steps, affording 10% overall yield. LCC showed effects Gram-positive (MIC = 6.2–50.0 µg/mL), Mycobacterium species 36.2–125 Helicobacter pylori 25 µg/mL). inhibited...
Abstract The aim of this work was to evaluate the removal three different textile dyes through coagulation action powder and supernatant Moringa oleifera seeds. pH solution mass concentrations adsorbent were varied. Fourier transform infrared (FT-IR) spectrophotometry used main interaction sites M. coagulants with dyes. Bioassays also conducted Lactuca sativa Eruca seeds toxicity Each dye interacted differently supernatant; however, rates higher than 70% even when varying solution. FT-IR...
The textile industry is responsible for discarding wastewater contaminated with dyes. timber generates waste in the form of sawdust. aim present study was to evaluate adsorptive potential sawdust obtained from Aspidosperma polyneuron tree removal dye wastewater. Sawdust subjected different pre-treatments (acid, alkaline and polyethyleneimine) order increase its adsorption capacity. Based on results isotherms, treatment polyethyleneimine (PEI) led greatest capacity fits Freundlich model,...