A5074783166- Enzyme-mediated dye degradation
- Lignin and Wood Chemistry
- Biochemical and biochemical processes
- Microbial Metabolism and Applications
- Biofuel production and bioconversion
- Fermentation and Sensory Analysis
- Pesticide and Herbicide Environmental Studies
- Fungal Biology and Applications
- Dyeing and Modifying Textile Fibers
- Microbial bioremediation and biosurfactants
- Microbial Metabolic Engineering and Bioproduction
- Heavy metals in environment
- Child Nutrition and Feeding Issues
- Fire effects on ecosystems
- Food Chemistry and Fat Analysis
- Wastewater Treatment and Reuse
- Infant Nutrition and Health
- Advanced oxidation water treatment
- Chromium effects and bioremediation
- Soil Carbon and Nitrogen Dynamics
- Rangeland and Wildlife Management
- Environmental Toxicology and Ecotoxicology
- Plant biochemistry and biosynthesis
- Analytical chemistry methods development
- Leech Biology and Applications
Universidad de Alcalá
2014-2024
Universidad Nacional Autónoma de México
2009-2018
Clinica Universidad de Navarra
2006
Observatoire Océanologique de Banyuls-sur-Mer
2003
Center for Research and Advanced Studies of the National Polytechnic Institute
2002
University of the Andes
1999
A new laccase (EC 1.10.3.2) produced by Streptomyces cyaneus CECT 3335 in liquid media containing soya flour (20 g per liter) was purified to homogeneity. The physicochemical, catalytic, and spectral characteristics of this enzyme, as well its suitability for biobleaching eucalyptus kraft pulps, were assessed. had a molecular mass 75 kDa an isoelectric point 5.6, optimal pH temperature 4.5 70 degrees C, respectively. activity strongly enhanced the presence Cu(2+), Mn(2+), Mg(2+) completely...
Currently, there is increasing interest in assessing the potential of bacterial laccases for industrial and environmental applications especially harsh conditions. The impact textile industry requires novel effective technologies to mitigate presence dyes wastewaters before discharging into environment. Dyes usually remain stable a variety chemicals, light are recalcitrant microbial degradation. Among available biological treatments offer environmentally friendly strategies decolorizing...
The role of laccase SilA produced by Streptomyces ipomoeae CECT 3341 in lignocellulose degradation was investigated. A comparison the properties and activities a laccase-negative mutant strain (SilA−) with that wild-type studied terms their ability to degrade lignin from grass lignocellulose. yields solubilized (acid precipitable polymeric lignin, APPL) obtained wheat straw both strains Solid State Fermentation (SSF) conditions demonstrated importance showing 5-fold more APPL compared...
This work describes the solid-state fermentation (SSF) of wheat straw with Streptomyces sp. MDG147 and further soda-pulping process to obtain soda lignins (WSLs). Subsequently, these WSLs were NCO-functionalized 1,6-hexamethylene diisocyanate then dispersed in castor oil achieve stable oleogels. The characterized using standard analytical methods, gel permeation chromatography, Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis. Rheological...
The usage of laccases is a sustainable and environmentally friendly approach to modifying the Kraft lignin structure for use in certain applications. However, inherent lignin, as well that resulting from laccase modification, still presents challenges fundamental comprehension successful valorization. In this study, bacterial fungal were employed modify eucalypt lignin. To evaluate type range chemical structural changes laccase-treated lignins, different NMR techniques, including solution 1H...
Among pollution remediation technologies, advanced oxidation processes (AOPs) are genuinely efficient since they based on the production of strong, non-selective oxidants, mainly hydroxyl radicals (·OH), by a set physicochemical methods. The biological counterparts AOPs, which may be referred to as bio-oxidation (ABOPs), have begun investigated mechanisms induction ·OH in fungi known. To contribute development ABOPs, wide number dyes white-rot fungus Pleurotus eryngii, via quinone redox...
The aim of this work is to prove the suitability a new alkaline and halo-tolerant bacterial laccase (SilA) produced by Streptomyces ipomoea CECT 3341 enhance conventional chemical bleaching process an industrial eucalyptus kraft pulp. used for study was recombinant obtained from cultures E. coli BL21 (DE3) grown in LB liquid medium. biobleaching experiment carried out on Eucalyptus globulus pulps using above mentioned acetosyringone as natural mediator. Then, extraction further hydrogen...
This work demonstrates the usefulness of SilA laccase from Streptomyces ipomoeae to functionalize Kraft lignin be used as a thickener in preparation biodegradable oleogels for lubricating purposes. First, conditions enzymatic reaction were optimized by determining polymerization degree along incubation time. Next, using rheological characteristics response function, amount and time get best functionalized castor oil oleogels. In both cases, surface methodology (RSM) with factorial design 23...