A5014465007- Microbial Community Ecology and Physiology
- Microplastics and Plastic Pollution
- biodegradable polymer synthesis and properties
- Gut microbiota and health
- Biofuel production and bioconversion
- Genomics and Phylogenetic Studies
- Anaerobic Digestion and Biogas Production
- Marine Biology and Environmental Chemistry
- Chromium effects and bioremediation
- Oral microbiology and periodontitis research
- Microbial Metabolic Engineering and Bioproduction
- Wastewater Treatment and Nitrogen Removal
- Microbial metabolism and enzyme function
- Dental Health and Care Utilization
- Methane Hydrates and Related Phenomena
- Infant Nutrition and Health
- Bacterial biofilms and quorum sensing
- Streptococcal Infections and Treatments
- Enzyme-mediated dye degradation
- Proteins in Food Systems
- Dental Erosion and Treatment
- Parasite Biology and Host Interactions
- Sugarcane Cultivation and Processing
- Environmental DNA in Biodiversity Studies
- Microbial Fuel Cells and Bioremediation
Pontifícia Universidade Católica do Rio Grande do Sul
2017-2022
Helmholtz Centre for Infection Research
2021
Universidade Federal do Rio Grande do Sul
2013
The vinasse is a residue of ethanol production with the potential for methane production, requiring an allochthonous inoculum. Several microorganisms act in different phases anaerobic digestion, and identification these microbial communities essential to optimize process. characterization microbiota involved biodigestion was observed initial stage (IS), at peak (MS) end process (FS) best performance assay by high-throughput sequencing. highest 0.78 mmolCH4.gVS.h-1 243.7 h substrate/inoculum...
In November 2015, two iron ore tailing dams collapsed in the city of Mariana, Brazil. The dams' collapse generated a wave approximately 50 million m3 mixture mining waste and water. It was major environmental tragedy Brazilian history, which damaged rivers, cities 660 km away Doce River basin until it reached ocean coast. Shortly after incident, several reports informed that concentration metals water above acceptable legal limits under laws. Here microbial communities samples water, mud,...
Synthetic polymers are the cause of some major environmental impacts due to their low degradation rates. Polyurethanes (PU) widely used synthetic polymers, and growing use in industry has produced an increase plastic waste. A commercial polyether-based thermoplastic PU with hydrolytic stability fungus resistance was only attacked by entomopathogenic fungus, Metarhiziumanisopliae, when films were pre-treated Ultraviolet (UV) irradiation presence reactive atmospheres. Water contact angle,...
Theactive sludge process is one of the most-used techniques for biodegradation organic compounds present in effluents from an assortment wastewaters. This study investigated bacterial community structure a petroleum industry’s activated and its physical chemical parameters using high-throughput sequencing. Samples were collected over year: autumn 2015 (C1), winter (C2), spring (C3), summer 2016 (C4). Total DNA was extracted, primers targeting V4 region 16S rRNA gene used amplicon The...
Plastic debris are constantly released into oceans where, due to weathering processes, they suffer fragmentation micro- and nanoplastics. Diverse microbes often colonize these persisting fragments, contributing their degradation. However, there scarce reports regarding the biofilm formation of eukaryotic decomposing microorganisms on plastics. Here, we evaluated five yeast isolates from deep-sea sediment for catabolic properties early adhesion ability high-density polyethylene (HDPE).We...
Feathers are naturally made up of non-digestible proteins. Under thermal processing, total tract digestibility can be partially improved. Furthermore, Bacillus subtilis (Bs) has shown a hydrolytic effect In vitro. Then, Bs FTC01 was selected to hydrolyze enough feathers produce meal, and then test the quality inclusion in dog's diet measure apparent coefficient (ATTDC) vivo microorganism's ability survive gastrointestinal tract. A basal added with 9.09% hydrolyzed feather meal (HFMBs) or...
Papillon–Lefèvre syndrome (PLS) is an autosomal recessive rare disease, main characteristics of which include palmoplantar hyperkeratosis and premature edentulism due to advanced periodontitis (formerly aggressive periodontitis). This study aimed characterize the oral phenotype, including salivary parameters, microbiome three PLS sisters, comparatively. Two sisters were toothless (PLSTL1 PLSTL2), one sister had most teeth in cavity (PLST). Total DNA was extracted from unstimulated saliva,...
Aims: This pilot study aimed to describe the majority and minority microbiota of saliva from individuals with advanced periodontitis, or without type 2 diabetes mellitus (T2D), correlating relative abundance microorganisms clinical parameters. Material/Methods: Six diagnosed periodontitis were included classified according their diagnosis T2D. Salivary pH, number teeth active caries lesions, remaining teeth, periodontal glycemic parameters evaluated. V4 region amplicons 16S rRNA salivary DNA...
The gut microbiota has been linked to obesity in humans. This study aimed characterize the fecal of normal weight, overweight and obese individuals interaction with metabolic parameters development obesity. Blood feces samples were collected from 169 patients. Patients grouped based on body mass index (BMI): weight (NW, 18-24.9), (OW, 25-29.9) (OB, ≥ 30) age between 18 30 years. Serum patient was used profile characterized. As expected, Firmicutes presented highest proportion. No significant...