Liliana Beatriz Villegas

ORCID: 0000-0001-6937-1561
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About
Contact & Profiles
Research Areas
  • Chromium effects and bioremediation
  • Adsorption and biosorption for pollutant removal
  • Biofuel production and bioconversion
  • Analytical chemistry methods development
  • Microbial bioremediation and biosurfactants
  • Enzyme-mediated dye degradation
  • Enzyme Production and Characterization
  • Trace Elements in Health
  • Heavy metals in environment
  • Microbial Metabolic Engineering and Bioproduction
  • Environmental remediation with nanomaterials
  • Polysaccharides Composition and Applications
  • biodegradable polymer synthesis and properties
  • Polysaccharides and Plant Cell Walls
  • Mine drainage and remediation techniques
  • Soil Science and Environmental Management
  • Postharvest Quality and Shelf Life Management
  • Metal Extraction and Bioleaching
  • Banana Cultivation and Research
  • Graphene and Nanomaterials Applications
  • Global Trade and Competitiveness
  • Bacterial biofilms and quorum sensing
  • Enzyme Catalysis and Immobilization
  • Heavy Metal Exposure and Toxicity
  • Bioeconomy and Sustainability Development

National University of San Luis
2016-2023

Consejo Nacional de Investigaciones Científicas y Técnicas
2005-2023

Centro Científico Tecnológico - San Luis
2016-2023

Planta Piloto de Procesos Industriales Microbiológicos
2008-2013

Saint Thomas Aquinas North University
2012-2013

Eleven yeasts were isolated from wastewater sediment samples collected a copper filter mine plant, located in the province of Tucumán, Argentina, and tested for their heavy metal tolerance. Two isolates selected based on multiple tolerance to different metals biosorption capacity was studied. Analysis 26S rDNA D1/D2 domain sequences indicates that isolate RCL-3 showed similarity with Candida sp. RCL-11 Rhodotorula mucilaginosa . Growth performance toxicity both evaluated using YNB-glucose...

10.1002/jobm.200510569 article EN Journal of Basic Microbiology 2005-09-26

Abstract The effect of high Cu(II) concentrations on superoxide dismutase (SOD) and catalase (CAT) activity in Candida fukuyamaensis RCL‐3 Rhodotorula mucilaginosa RCL‐11, previously isolated from a copper filter at mine plant Argentina, was studied. Addition 0.1, 0.2 0.5 mM to the culture medium increased total SOD CAT both strains. Native polyacrylamide gel electrophoresis revealed two bands with for C. only one R. RCL‐11; three corresponded MnSOD. Intracellular accumulation morphological...

10.1002/jobm.200800218 article EN Journal of Basic Microbiology 2009-03-25

The purpose of this study was to investigate the influence increasing sulfate concentrations on chromium removal, evaluate effect presence Cr(VI) removal by Streptomyces sp. MC1 and analyze differential protein expression profile in metal for identification proteins repressed or overexpressed. In but absence ions, bacterial growth negligible, showing toxicity bacterium. However, stimulated bacterium regardless its concentrations. showed ability remove simultaneously. Also, favored decrease...

10.1002/jobm.201600170 article EN Journal of Basic Microbiology 2016-06-10

The present study explored the ability of yeast Rhodotorula mucilaginosa RCL-11 to adapt increasing Cu(II) concentrations, measuring oxidative stress through superoxide dismutase and catalase activity in two parallel sequential batch assays. One assay was performed Erlenmeyer flasks without aeration a second fermentor which dissolved oxygen maintained at 30% saturation. Both assays were carried out by concentrations five steps: 0; 0.1; 0.2; 0.5 1 mM. Each incubated 30°C, 250 rpm pH 5.5....

10.2166/wst.2009.457 article EN Water Science & Technology 2009-05-01

Fish farming development faces several challenges, including the unavailability of good quality and affordable fish feeds. Therefore, debate over is focused on fostering a shift from conventional feeds to less expensive alternative protein sources. In this study, biomass production Aspergillus sp. V1 for use as an innovative feed ingredient was evaluated, employing sugarcane vinasse substrate. Vinasse toxicity also monitored, before after fungus production, using growth parameters in Lactuca...

10.2139/ssrn.4325902 article EN 2023-01-01
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