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Production, extraction and characterization of microalgal and cyanobacterial exopolysaccharides.
- C. Delattre, G. Pierre, C. Laroche, P. Michaud
- Biology, MedicineBiotechnology advances
- 15 November 2016
The aim of this review is to do the state of the art of processes for exopolysaccharide production and extraction from microalgal biomass and the analytical strategies for their characterization.
Influence of culture medium recycling on the performance of Arthrospira platensis cultures
The influence of medium recycling on the performance of the cyanobacterium Arthrospira platensis, the most widely cultivated microalgae, was investigated and a decline in growth rate and the maximum quantum yield of photosynthesis was observed.
Harvesting carbohydrate-rich Arthrospira platensis by spontaneous settling.
- Orily Depraetere, G. Pierre, +7 authors K. Muylaert
- Chemistry, MedicineBioresource technology
- 1 March 2015
The filamentous cyanobacterium Arthrospira platensis is an attractive feedstock for carbohydrate-based biofuels because it accumulated up to 74% of carbohydrates when nitrogen stressed, and this occurred simultaneously with carbohydrates accumulation, suggesting a link between both phenomena.
Biochemical Composition and Changes of Extracellular Polysaccharides (ECPS) Produced during Microphytobenthic Biofilm Development (Marennes-Oléron, France)
The main goal of this work was to study the dynamics and biochemical composition of extracellular polysaccharides (ECPS) produced during the development of a microphytobenthic biofilm in a European intertidal mudflat (Marennes-Oléron Bay, France) during winter.
Biochemical characterization of extracellular polymeric substances extracted from an intertidal mudflat using a cation exchange resin
Abstract The biochemical characterization of Extracellular Polymeric Substances (EPS) excreted in a European intertidal mudflat (Marennes–Oleron Bay) was performed. Experiments were carried out for…
Seasonal dynamics of extracellular polymeric substances (EPS) in surface sediments of a diatom-dominated intertidal mudflat (Marennes–Oléron, France)
Investigations showed that the dynamic pathways were equivalent between winter and summer: bound carbohydrates quantities increased during the sediment emersion periods on the contrary to colloidal carbohydrates which tended to drop throughout the emersion time.
High-performance hydrolysis of wheat straw using cellulase and thermomechanical pretreatment
Abstract Wheat straw was ground and pretreated with a thermomechanical process before exposure to a mixture of cellulases (Celluclast). The thermomechanical process known as DIC (Detente Instantanee…
Chitosan as an adhesive
- Narimane Mati-Baouche, P. Elchinger, H. D. Baynast, G. Pierre, C. Delattre, P. Michaud
- Materials Science
- 1 November 2014
Chitosan is a well-known polysaccharide abundantly published during the last decades. This heteropolymer, composed of 2-acetamido-2-deoxy-d-glucopyranose and 2-amino-2-deoxy-d-glucopyranose, is…
Antioxidant activities of a polyglucuronic acid sodium salt obtained from TEMPO-mediated oxidation of xanthan.
- C. Delattre, G. Pierre, +4 authors P. Michaud
- Chemistry, MedicineCarbohydrate polymers
- 13 February 2015
A xanthouronic acid sodium salt produced from xanthan by regioselective oxidation with NaOCl/NaBr using 2,2,6,6-tetramethylpiperidine-1-oxy radical (TEMPO) as catalyst showed its high resistant to biodegradation.
Characterization of arabinogalactan-rich mucilage from Cereus triangularis cladodes.
- B. Petera, C. Delattre, +6 authors T. A. Fenoradosoa
- Biology, MedicineCarbohydrate polymers
- 20 August 2015
Structural analyses has revealed that this polysaccharide with a molecular mass of 8430,000g/mol was mainly composed of a galactan backbone of a (1 → 4) linked β-d-Galp residues probably substituted at position 3 by L-arabinofuranosyl residues.