A5061880755- Lignin and Wood Chemistry
- Wood Treatment and Properties
- Natural Fiber Reinforced Composites
- Phytochemicals and Antioxidant Activities
- Biofuel production and bioconversion
- Natural product bioactivities and synthesis
- Advanced Cellulose Research Studies
- Plant-Derived Bioactive Compounds
- Plant biochemistry and biosynthesis
- African Botany and Ecology Studies
- Biological Activity of Diterpenoids and Biflavonoids
- Enzyme-mediated dye degradation
- Fermentation and Sensory Analysis
- Electrophoretic Deposition in Materials Science
- biodegradable polymer synthesis and properties
- Bone Tissue Engineering Materials
- Catalysis for Biomass Conversion
- Polymer composites and self-healing
- Tree Root and Stability Studies
- Plant Gene Expression Analysis
- Food composition and properties
- Electrospun Nanofibers in Biomedical Applications
- Thermochemical Biomass Conversion Processes
- Biochemical and biochemical processes
- Cultural Heritage Materials Analysis
Université Laval
2015-2024
Kruger (Canada)
2011-2024
Centre de Géomatique du Québec
2007-2015
Collège de Bois-de-Boulogne
2010
In order to evaluate the therapeutic potential of polyphenolic extracts from root bark M. arboreus, we have determined content various polyphenols in aqueous and ethanol (EtOH) extract as well two sub-fractions latter: ethyl acetate (EAc) hexane (Hex). The total phenols, flavonoids, hydroxycinnamic acids proanthocyanidins been for all studied extracts/fractions by spectrophotometric methods. Both TP (331.5 ± 2.5 mg GAE/g) HCA (201 1.5 CAE/g) were be highest EAc fraction EtOH extract. All...
Hydroxyapatite is the most suitable biocompatible material for bone implant coatings. However, its brittleness a major obstacle, and that why, recently, research focused on creating composites with various biopolymers. In this study, hydroxyapatite coatings were modified lignin in order to attain corrosion stability surface porosity enables osteogenesis. Incorporating silver, well known antimicrobial properties, seemed best strategy avoiding possible infections. The silver/hydroxyapatite...
ABSTRACT This article presents a novel approach to compatibilize Kraft lignin with polyethylene that involves the use of modified poly (styrene‐co‐ethylene‐co‐butylene‐co‐styrene) (SEBS) as unreactive compatibilizers. As SEBS shows no compatibilizing effect on lignin‐polyethylene composites, was functionalized via nitration followed by amination obtain nitrated (SEBS‐NO 2 ) and aminated (SEBS‐NH SEBS. The effects derivatives were studied means morphological mechanical analyses. results show...
Hydroxyapatite (HAP) is the most suitable biocompatible material for bone implant coatings; its brittleness, however, a major obstacle, and reason why research focuses on creating composites with biopolymers. Organosolv lignin (Lig) used production of composite coatings, these were examined in this study. Titanium substrate key biomedical due to well-known properties, but infections implantation site still impose serious threat. One approach prevent infection improve antimicrobial properties...
With the objective of turning wastes into added-value materials, sustainable and fully recycled wood-plastic composites were reinforced by waste tire rubber particles to show balanced properties potentially low-cost materials. Recycled high density polyethylene (rHDPE) was compounded (melt extrusion) with flax fiber (FF) regenerated (RR) investigate effect mixing ratio, coupling agent (maleated polyethylene, MAPE) molding process (injection compression molding) on hybrid composites. In...
The development of new processing methods is required in order to meet the continuous demand for thinner films with excellent barrier properties food packaging and other applications. In this study, rice husk organosolv lignin nanoparticles were prepared using electrospray method, which applied produce polylactic acid (PLA)-based packaging. effect following parameters has been investigated: concentration (LC) ranging from 5-50 mg/mL, flow rate (FR) 0.5-1 mL/min, voltage 10-30 kV,...
In addition to their nutritive value, foods provide health benefits or have a role in disease prevention since they contain wide range of phytochemicals which represent functional bioactive components. These molecules present are based on variety chemical structures, from carotenoids, through sterols and fatty acids, different types polyphenols. this review, the polyphenols common constituents vascular plants explored. They also fruits vegetables, teas cocoas. The extractable polyphenols,...
ABSTRACT In this study, the effectiveness of free‐radical grafting as a compatibilization method applied to composites containing Kraft lignin (KL) and esterified was comparatively investigated. Maleated (ML) first obtained via esterification KL with maleic anhydride. ML were respectively incorporated into high density polyethylene (HDPE) up 60% wt dicumyl peroxide used generator. The influence on morphological, mechanical, thermal properties lignin‐based studied. incorporation lignins HDPE...
Abstract Lignocellulosic fillers have gained attention as biofillers due to their low cost, availability, and eco‐friendly nature. Various lignocellulosic from different sources having chemical compositions been used in natural rubber (NR) without sufficient comparison. So the objective of this study is investigate effect two well defined industrial (lignin cellulose) along with black spruce cellulosic pulps obtained an organosolv process on properties NR. To end, a range (0/100–100/0)...
Forest resources are among the most important of Canada (in case Québec, nearly 90% territory). Innovation represents an essential challenge for Canadian forest industry, which is presently undergoing major changes towards finding new solutions recovery. The processing biomass has become increasingly relevant along with popular concept biorefineries. This should include development novel technologies based on extractives. Bioactive molecules readily available through eco-friendly extraction...