A5082852796- Lignin and Wood Chemistry
- Advanced Cellulose Research Studies
- Biofuel production and bioconversion
- Enzyme-mediated dye degradation
- Thermochemical Biomass Conversion Processes
- Advanced Combustion Engine Technologies
- Catalytic Processes in Materials Science
- Heat transfer and supercritical fluids
- Biochemical and biochemical processes
- Polymer composites and self-healing
- Natural Fiber Reinforced Composites
- Phytochemicals and Antioxidant Activities
- Wood Treatment and Properties
- Polysaccharides and Plant Cell Walls
- Forest Ecology and Biodiversity Studies
- Toxic Organic Pollutants Impact
- Fermentation and Sensory Analysis
- Combustion and flame dynamics
- Catalysis and Oxidation Reactions
- Flame retardant materials and properties
- Edible Oils Quality and Analysis
- Plant Pathogens and Fungal Diseases
- Wood and Agarwood Research
- Petroleum Processing and Analysis
- Energetic Materials and Combustion
Université de Lorraine
2016-2025
Laboratoire d'Etude et de Recherche sur le Matériau Bois
2017-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2024
Laboratoire Réactions et Génie des Procédés
2005-2016
Centre National de la Recherche Scientifique
2005-2012
Steam explosion (SE) is one of the most advanced pretreatment processes currently used for production biofuel from lignocellulose. However, SE lignin generally recovered as a secondary impure coproduct and mainly energy production. In this work, beech wood sawdust was first exploded at 180 or 200 °C 5 min after water dilute acid impregnation. The recovery studied using an alkali process 80 ethanol-organosolv °C. impact parameters delignification step on structure examined by size exclusion...
Summary Ectomycorrhizal (EcM) fungi play a crucial role in the mineral nitrogen (N) nutrition of their host trees. While it has been proposed that several EcM species also mobilize organic N, studies reporting ability to degrade N‐containing polymers, such as chitin, remain scarce. Here, we assessed capacity representative collection 16 acquire 15 N from N‐chitin. In addition, combined genomics and transcriptomics identify pathways involved exogenous chitin degradation between these fungal...
In order to handle urgent energy and environmental issues, the development of a circular economy supported by lignocellulosic biorefineries is essential right now. this respect, lignin should no longer be seen as waste or byproduct but renewable abundant resource. This why research has recently focused on nanoparticles (LNPs) from kraft (KL), opening up new value-added areas. However, date, study top-down lignin-based approach over further produced LNP properties, i.e., contribution initial...
In recent years, concerns about the harmful effects of synthetic UV filters on environment have highlighted need for natural sun blockers. Lignin, most abundant aromatic renewable biopolymer Earth, is a promising candidate next-generation sunscreen due to its inherent absorbance and green, biodegradable, biocompatible properties. Lignin’s limitations, such as dark color poor dispersity, can be overcome by reducing particle size nanoscale, enhancing protection formulation. this study, 100–200...
Steam-explosion lignin (SEL) was extracted with ethanol from steam-exploded hardwood (okoumé, Aucoumea klaineana Pierre) pretreated at various severities after neutral or acidic impregnation. The SELs were subjected to structural characterization by 2D HSQC NMR, 31P and SEC compared milled-wood (MWL). A strong decrease in the β- O-4 content is observed increasing steam-explosion severity accompanied a gradual increase molecular mass. Cα-oxidized S units (S', Hibbert's ketones) quantified NMR...
This article presents new research on producing lignin nanoparticles (LNPs) using the antisolvent nanoprecipitation method. Acetone (90%) served as solvent and water (100%) antisolvent, five types of lignins from various sources. Comprehensive characterization techniques, including NMR, GPC, FTIR, TEM, DLS, were employed to assess both LNP properties. The antioxidant activity LNPs was evaluated well. results demonstrated successful formation spherical below 100 nm with initial concentrations...
Three different types of lignin (kraft, organosolv and phosphoric acid lignin) were characterized tested as precursors electrospun nanofibers. Polyethylene oxide (PEO) was added a plasticizer dimethyl formamide (DMF) employed solvent. It found that the molecular weight key parameter to understand differences mechanical stability resultant fiber mats. In case kraft (KL), influence some changes in synthetic process also tested: applied voltage, pretreatment air or not, addition small amount...
Effects of alkaline (kraft and soda) organosolv pulping were evaluated relative to the structural properties lignin isolated from coconut husk (CH) biomass. The various types functional groups within samples characterized compared using a variety complementary analyses including Fourier-transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) gel permeation chromatography (GPC), high-performance liquid (HPLC). All CH contained significant quantity non-condensed guaiacyl-type...