A5101537070- Enzyme Catalysis and Immobilization
- Enzyme Production and Characterization
- Environmental Chemistry and Analysis
- Higher Education Teaching and Evaluation
- Surfactants and Colloidal Systems
- Biofuel production and bioconversion
- Analytical Chemistry and Chromatography
- Microbial Metabolic Engineering and Bioproduction
- Medical Imaging Techniques and Applications
- E-Learning and Knowledge Management
- Social Sciences and Policies
- Advanced X-ray and CT Imaging
- Microbial Metabolites in Food Biotechnology
- Medical Image Segmentation Techniques
- Solar-Powered Water Purification Methods
- Chemistry and Chemical Engineering
- Fungal Biology and Applications
- Historical Art and Architecture Studies
- Medieval Architecture and Archaeology
- Edible Oils Quality and Analysis
- Dye analysis and toxicity
- Membrane Separation Technologies
- Health and Medical Education
- Electrohydrodynamics and Fluid Dynamics
- Phosphorus and nutrient management
Universidad de Granada
2006-2024
Universidad de Oviedo
2016
Universidade Federal do Rio Grande do Sul
2016
Los Alamos National Laboratory
2008
The present study provides the surface and thermodynamic properties data of commercial fatty-alcohol ethoxylate surfactants (FAEs) at different temperatures (25–60 °C). These compounds are a mixture oligomers with degree ethoxylation (2.6–11) length alkyl chain (C10-C18). In this work, we analyzed determinate water content by Karl-Fisher method measured tension using Wilhelmy plate method. addition, studied effect their structural parameters (degree chain) temperature on changes functions...
This study investigates the stability of α-amylase and protease in disinfectant formulations incorporating essential oils (EOs), anionic surfactants (linear alkylbenzene sulfonate), non-ionic (alkylpolyglucosides ethoxylated fatty alcohols), mixtures them, analysing influence composition, temperature, time using shelf-life assays. EOs reduce activity showing first-order deactivation kinetics, were found not to significantly affect its activity. However, increases with presence EOs, it was...
The enzymatic hydrolysis of soluble starch with an alpha-amylase from Bacillus licheniformis (commercial enzyme Termamyl 300 L Type DX) have been experimentally studied at pH 7.5, within the temperature range 37-75 degrees C, initial substrate concentrations between 0.25 and 2.00 g/L, 0.575 x 10(-4) 13.8 g/L. To follow reaction a procedure based on iodometric method for measuring activity was used. kinetics fitted to Michaelis-Menten equation using integral method, taking into account that...
Abstract A quick and simple method, based on elemental moisture analyses, is proposed for estimating the mean molecular weight of alkylpolyglucosides fatty alcohol ethoxylates, which are nonionic surfactants that attracting growing interest their ease biodegradation. Analyses water content composition were carried out three (Henkel‐Cognis): Glucopon 215, 600, 650, as well five fattyalcohol ethoxylates (Kao Corporation): FINDET 10/15, 10/18, FINDEt 1214N/16, 1214N/23, 1618/A18. Application...
This paper explores the use of acoustics for recovery oil in oil-water emulsions.A series experimental studies were conducted using acoustic standing waves resonant cavities as means trapping droplets and enhancing separation.Several cavity configurations explored frequency range used was between 1 MHz-2 MHz.Oil-water emulsions studied made mineral motor oil.
Sustainable crop production includes methods of growing food in a responsible manner avoiding application and dependence on chemically produced fertilizers pesticides. The latter means development approaches that lead to environmentally mild inputs based the production-consumption-recycling principle. Biofertilizers are an important tool achieve sustainable production. In this work, we report results experiments growth spore/mycelium plant promoting A. niger applying standard nutritional...
In recent years, several toxicological studies concerning pollutants have focused on the joint assessment of co-pollutants, revealing that multiple interactions between toxics can appear and need to be described [...]
Sustainable crop production includes methods of growing food in a responsible manner avoiding application and dependence on chemically produced fertilizers pesticides. The latter means development approaches that lead to environmentally mild inputs based the production-consumption-recycling principle. Biofertilizers are an important tool achieve sustainable production. In this work, we report results experiments growth spore/mycelium plant promoting A. niger applying standard nutritional...
SPECT (single photon emission computed tomography) is used in nuclear medicine to determine the distribution of a radioactive isotope within patient from tomographic views or projection data. These images are severely degraded due presence noise and several physical factors like attenuation scattering. We use, Bayesian framework, compound Gauss Markov random field (CGMRF) as prior model reconstruct such images. In order find maximum posteriori (MAP) estimate we propose new iterative method,...