A5073524128- Enzyme Catalysis and Immobilization
- Microbial Metabolic Engineering and Bioproduction
- Carbohydrate Chemistry and Synthesis
- Chemical Synthesis and Analysis
- Enzyme Production and Characterization
- Biofuel production and bioconversion
- Catalysis for Biomass Conversion
- Biochemical and biochemical processes
- Analytical Chemistry and Chromatography
- Biochemical and Molecular Research
- Land Use and Ecosystem Services
- Click Chemistry and Applications
- Enzyme-mediated dye degradation
- Urban Agriculture and Sustainability
- Polyoxometalates: Synthesis and Applications
- Glycosylation and Glycoproteins Research
- Microbial Metabolites in Food Biotechnology
- Mesoporous Materials and Catalysis
- Lignin and Wood Chemistry
- Asymmetric Synthesis and Catalysis
- Urban Green Space and Health
- Ionic liquids properties and applications
- Asymmetric Hydrogenation and Catalysis
- Enzyme Structure and Function
Autonomous University of Yucatán
2018
RWTH Aachen University
2012-2016
Universidad Complutense de Madrid
2011-2013
Furfural and 5-hydroxymethylfurfural (HMF) are important biomass-derived platform chemicals that can be obtained from the dehydration of lignocellulosic sugars. A possible route for derivatization furanics is their oxidation to afford a broad range with promising applications (e.g., diacids, hydroxyl acids, aldehyde monomers novel polymers). Herein we explore organic peracid-assisted under mild reaction conditions. Using lipases as biocatalysts, alkyl esters acyl donors, aqueous solutions...
Abstract 5‐Hydroxymethylfurfural (HMF) is a valuable biomass‐derived building block. Among possible HMF valorization products, broad range of esters can be synthesized. These have found some promising applications, such as monomers, fuels, additives, surfactants, and fungicides, thus several catalytic approaches for (trans)esterifications been reported. The intrinsic reactivity challenging, forcing the use mild reaction conditions to avoid by‐product formation. This paper explores...
The isolation of lignin-degrading microbial strains may lead to the discovery novel biocatalysts—peroxidases, laccases, and β-etherases—potentially useful for lignin valorization. inherent heterogeneity lignin, together with sometimes difficult accessibility representative amounts it, become a hurdle using as carbon source screening purposes. This communication compares soil samples bacteria sources either OrganoCat or synthetically produced lignin. In both cases, same were isolated,...
The use of biocatalysis for the provision optically active building blocks and other useful compounds fine chemicals pharmaceutical industries is nowadays a mature technology. To further improve ecological footprints these applications, there currently an increasing interest in using biomass-derived solvents enzyme-catalyzed processes that may be implemented at industrial level on midterm basis. rationale behind concepts would final replacement petroleum-based by more benign,...
Enzymes create chiral microenvironments that may simultaneously generate several stereogenic centers in the same catalytic cycle, broadening possibilities of biocatalysis. Benzaldehyde lyase (BAL) affords highly diastereoselective α-hydroxy-ketones by performing ligation and kinetic resolution a racemic aldehyde. Thus, to well-known enantioselective BAL-carboligation aldehydes (C-C bond formation), another property, namely diastereoselectivity, is added this paper for first time.
Green solvents made from glycerol change the classical regioselectivity of Biolacta No 5 β-galactosidase, β(1→4) to β(1→6) linkages when a 2 M concentration was used. In order explain these results, non-proteic compounds present in preparation were separated by precipitation with ammonium sulfate and remaining protein extract used set reactions appropriate organic find that towards isomer is retained. According proteomic analysis, 98% homology between Streptococcus pneumoniae β-galactosidase...
Abstract Enzymatic multistep reactions are presently an important research field, from which integrated and efficient synthetic protocols can be created, accompanied by a diminished waste formation (avoiding downstream units operations). This article explores the benzaldehyde lyase (BAL) catalyzed crossed carboligation of with different aliphatic aldehydes to afford optically active α‐hydroxyketones. To this end, biobased alcohols were in situ oxidized oxidase Hansenula sp. subsequently...
Pulp & Oil: We report the unprecedented formation of de-aromatized lignin oil together with a white polysaccharide fraction when lignocellulose is treated peracids, which are formed in situ by enzymes. A preliminary characterization provided, evidence that delignified accessible to cellulases afford fermentable sugars. As first proof-of-concept, reported approach may bring promising new research lines future.
Know-how for a new use: Lipase-catalyzed reactions with vinyl esters form acetaldehyde as by-product. A controllable in situ production of useful, but highly reactive substrate can allow multi-step reactions. As example, the first lipase-lyase one-pot combination is reported.
Jasminaldehyde (α-pentyl cinnamaldehyde) is a natural fragrance that can be produced via aldol-type C–C bond formation between heptanal and benzaldehyde. The use of bases like NaOH to form jasminaldehyde typically leads significant waste by-product formation. To provide sustainable options with diminished high conversions selectivities, herein silica-immobilized piperazine used as organocatalyst for the synthesis either in bio-based solvents (e.g. 2-methyltetrahydrofuran, 2-MeTHF) or...