A5001610281- Algal biology and biofuel production
- Seaweed-derived Bioactive Compounds
- Marine and coastal plant biology
- Advanced Cellulose Research Studies
- Biodiesel Production and Applications
- biodegradable polymer synthesis and properties
- Aquatic Ecosystems and Phytoplankton Dynamics
- Biofuel production and bioconversion
- Photosynthetic Processes and Mechanisms
- Biocrusts and Microbial Ecology
- Food Industry and Aquatic Biology
- Enzyme Catalysis and Immobilization
- Polysaccharides and Plant Cell Walls
- Plant Growth Enhancement Techniques
- Marine Bivalve and Aquaculture Studies
- Phosphorus and nutrient management
- Microbial Community Ecology and Physiology
- Microbial Metabolites in Food Biotechnology
- Enzyme Production and Characterization
- Genomics and Phylogenetic Studies
- Dendrimers and Hyperbranched Polymers
- Carbohydrate Chemistry and Synthesis
- Echinoderm biology and ecology
- Polyamine Metabolism and Applications
- Composting and Vermicomposting Techniques
CEA Cadarache
2015-2024
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2015-2024
Direction de la Recherche Technologique
2021-2024
CEA Grenoble
2024
Centre National de la Recherche Scientifique
1995-2015
Centre d’Étude et de Valorisation des Algues
2007-2015
Aix-Marseille Université
2015
Ecologie Microbienne Lyon
2015
Biopolymères Interactions Assemblages
2009
Centro Ricerche FIAT
2009
Microalgae have been shown to be a source of multiple bio-based products ranging from high value molecules commodities. Along with their potential produce large variety products, microalgae can also used for the depollution wastewaters different origins (urban, industrial, and agricultural). This paper is focused on importance harnessing bioremediation capacity treat in order develop industry (especially biofuel industry) find other alternatives classic wastewater treatment processes. The...
Abstract Ultrastructural analysis of the gel forming green seaweed sulfated polysaccharide ulvan revealed a spherical‐based morphology (10–18 nm diameter) more or less aggregated in aqueous solution. At pH 13 TBAOH (tetrabutyl ammonium hydroxyde) NaOH, formed an open gel‐like structure continuous film by fusion coalescence bead‐like structures, while acidic conditions, appeared as dispersed beads. Low concentrations sodium chloride, copper boric acid induced formation aggregates. These...
Sulphated polysaccharides (SP) extracted from seaweeds have antiviral properties and are much less cytotoxic than conventional drugs, but little is known about their mode of action. Combination chemotherapy may offer advantages over single agent therapy, increasing efficiency, potency delaying the emergence resistant virus. The paramyxoviridae family includes pathogens causing morbidity mortality worldwide in humans animals, such as Newcastle Disease Virus (NDV) poultry. This study aims at...
Abstract Algae are a promising source of industrial biomass for the future. In order to assess if aquacultured seaweed (macroalgae) could be considered an environmentally friendly bioenergy, life cycle assessments were performed European countries, comparing methane as biofuel from anaerobic digestion (A) whole seaweeds, (B) alginate extraction residues, and (C) natural gas fossil fuel reference. These results clarify that sources electricity energy used heat digesters have important impact....
Arthrospira platensis (Spirulina) is the most cultivated microalga worldwide. Improving its cultivation in terms of biomass productivity, quality, or production cost could significantly impact Spirulina industry. The objectives this paper were defined as to contribute goal. productivity was investigated through medium choice. A modified Zarrouk’s selected it gave higher final dry weights and longer sustained growth than Hiri’s Jourdan’s media. Then, order reduce cost, rationalized by testing...
Microalgae show great promise as sources of starch, one the most widely consumed molecules. In this study, we evaluated impact three starch-inducing factors, namely nitrogen deprivation, supra-optimal temperature, and red light, on physiology starch accumulation capacity Chlorella vulgaris. This was monitored by measuring total carbohydrate content transmission electron microscopy (TEM) imaging. Nitrogen deprivation a temperature 39 °C resulted in contents 69.7 64.3 % dry weight (DW)...
de niveau recherche, publiés ou non, émanant des établissements d'enseignement et recherche français étrangers, laboratoires publics privés.
The seasonal variability in the extraction yield, physicochemical characteristics, and rheological properties of ulvan from two Ulva species contributing to Brittany "green tides" has been studied. These seaweeds were collected water column for armoricana Dion, de Reviers et Coat on hard substrata rotundata Bliding. maximum efficiency was not related content seaweeds, but with active growth period seaweeds. Ulvan chemical structure, macromolecular affected by both seasons. proportion...
A rod shaped, Gram-stain-negative, chemo-organotrophic, heterotrophic, strictly aerobic, non-gliding bacterium, designated strain PLR T , was isolated from faeces of the mollusc Aplysia punctata (Mollusca, Gastropoda) that had been fed with green algae belonging to genus Ulva . The novel able degrade ulvan, a polysaccharide extracted (Chlorophyta, Ulvophyceae). taxonomic position investigated by using polyphasic approach. Strain dark orange, oxidase-positive, catalase-positive and grew...
Large-scale microalgae cultivation for biofuel production is currently limited by the possibility of maintaining high yield and lipid content, concomitantly. In this study, physiological changes Chlorella vulgaris NIES 227 during accumulation under nutrient limitation was monitored in parallel with photosynthetic capacity to fix carbon from proxy oxygen productivity. exponential growth phase, as biomass composition did not vary significantly (approx. 53.6 ± 7.8% protein, 6.64 3.73% total...
Solution and interfacial properties of water-soluble hybrid linear−dendritic polyether copolymers are investigated by static dynamic surface tension measurements adsorption experiments on polymeric substrates. The results obtained show that the block able to form mono- multimolecular aggregates in water. Contacting a solid substrate with an aqueous solution copolymer increases hydrophilicity substrate. Adsorption hydrophobic poly(ethylene terephthalate) proceeds only through dendritic blocks...
Hydroponic farms produce wastewater that need to be treated before being released into the environment. A three-step screening process (microplate, batch, and semi-continuous flasks experiments) initially designed select an efficient microalgae strain allowed isolation of a consortium naturally developed in hydroponic farm wastewater. During non-optimized experiments, best performing strain, Scenedesmus obliquus UTEX393 wastewater-born cultures achieved good average linear growth rate (0.186...