A5023569097- Lignin and Wood Chemistry
- Biofuel production and bioconversion
- Fermentation and Sensory Analysis
- Enzyme-mediated dye degradation
- Microbial Metabolic Engineering and Bioproduction
- Protein Hydrolysis and Bioactive Peptides
- Microbial Metabolites in Food Biotechnology
- Seed and Plant Biochemistry
- Plant biochemistry and biosynthesis
- Microplastics and Plastic Pollution
- Polymer composites and self-healing
- Advanced oxidation water treatment
- Mycotoxins in Agriculture and Food
- Dyeing and Modifying Textile Fibers
- Meat and Animal Product Quality
- Biochemical and biochemical processes
- Animal Nutrition and Physiology
- Nanocomposite Films for Food Packaging
- Environmental Toxicology and Ecotoxicology
- biodegradable polymer synthesis and properties
- Food composition and properties
- Natural Fiber Reinforced Composites
Universidad de Alcalá
2021-2024
Central University of Venezuela
2010-2011
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...
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...
The development of biological strategies to obtain new high-added value biopolymers from lignocellulosic biomass is a current challenge for scientific community. This study evaluates the biodegradability and ecotoxicity formulated oleogels obtained fermented agricultural residues with Streptomyces, previously reported show improved rheological tribological characteristics compared commercial mineral lubricants. Both exhibited higher biodegradation rates than grease. Classical...
Kraft lignin, a side-stream from the pulp and paper industry, can be modified by laccases for synthesis of high added-value products. This work aims to study different laccase sources, including bacterial Streptomyces ipomoeae (SiLA) fungal Myceliophthora thermophila (MtL), kraft lignin polymerization. To influence some variables in these processes, central composite design (CCD) with two continuous (enzyme concentration reaction time) three levels each variable was used. The prediction...
The herein work analyzes the compositional and structural modification of extracted lignins from both barley wheat straws biologically pretreated with Streptomyces by solid-state fermentation two different strains, MDG147 MDG301. results showed that MDG301 strain promoted major lignin solubilization, especially for straw alkaline extraction, simultaneously exhibited a higher hydrolytic enzymatic profile than MDG147. Furthermore, substrates were submitted to soda pulping, chemical composition...
Abstract Ligninases and hemicellulases are crucial as accessory enzymes to increase the enzymatic hydrolysis of lignocellulose, boosting sugars production from which biofuels bioproducts could be obtained. In order find new sources these enzymes, this study evaluates potential laccase mannanase Streptomyces ipomoeae for improving conventional with commercial cellulases steam-pretreated softwood. For that, different treatment supplementation strategies were performed. S. increased both...
The globalization of markets has diversified the food supply, but it also made distribution chain more difficult, increasing risk microbial contamination. One strategy to obtain safer and extend its shelf life is develop active packaging with antimicrobial properties that prevent growth pathogenic microorganisms or spoilage in products. In this context, line growing social awareness about environmental impact generated by plastic waste, work evaluated effectiveness polylactic acid (PLA)...
Abstract This study used Orthogonal Projections to Latent Structures-Discriminant Analysis (OPLS-DA) identify and optimize the combined effect of temperature, fermentation time, substrate-type, fermenting microorganism on solid-state (SSF) culture different agricultural wastes, in order evidence interactions among variables that allow maximizing production each enzyme. Thus, barley wheat straw were fermented using two Streptomyces strains ( S . MDG 301 S. 147) under SSF conditions. Key...