| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Brosse, Nicolas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Isolation and Structural Characterization of Natural Deep Eutectic Solvent Lignin from Brewer’s Spent Grainscitations
- 2024A comprehensive review on processing, characteristics, and applications of cellulose nanofibrils/graphene hybrid-based nanocomposites: Toward a synergy between two-star nanomaterialscitations
- 2024Preparation and Characterization of Lignin Nanoparticles from Different Plant Sourcescitations
- 2023Investigation of the performance of needle-punched nonwoven fabrics using Triumfetta cordifolia and thermoplastic fibers, compared to other commercial bast fibers used in preformed biosourced compositescitations
- 2023Development of chitosan green composites reinforced with hemp fibers : study of mechanical and barrier properties for packaging applicationcitations
- 2022Preparation and characterization of formaldehyde-free wood adhesive from mangrove bark tannincitations
- 2022Preparation and characterization of formaldehyde-free wood adhesive from mangrove bark tannincitations
- 2021Extraction of acetylated glucuronoxylans and glucomannans from Okoume (Aucoumea klaineana Pierre) sapwood and heartwood by steam explosioncitations
- 2021Extraction of acetylated glucuronoxylans and glucomannans from Okoume (Aucoumea klaineana Pierre) sapwood and heartwood by steam explosioncitations
- 2018Production of oil palm (Elaeis guineensis) fronds lignin-derived non-toxic aldehyde for eco-friendly wood adhesivecitations
- 2018Production of oil palm (Elaeis guineensis) fronds lignin-derived non-toxic aldehyde for eco-friendly wood adhesivecitations
- 2017A Multitechnique Characterization of Lignin Softening and Pyrolysiscitations
- 2015Antioxidant and anticorrosive properties of oil palm frond lignins extracted with different techniquescitations
- 2015Preparation and Characterization of Lignin Polyols from the Residues of Oil Palm Empty Fruit Bunchcitations
- 2015Preparation and Characterization of Lignin Polyols from the Residues of Oil Palm Empty Fruit Bunch
- 2013Investigation of the Effects of Ionic Liquid 1-Butyl-3-methylimidazolium Acetate Pretreatment and Enzymatic Hydrolysis of Typha capensiscitations
Places of action
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article
Extraction of acetylated glucuronoxylans and glucomannans from Okoume (Aucoumea klaineana Pierre) sapwood and heartwood by steam explosion
Abstract
Aucoumea klaineana Pierre (okoume) is a tropical hardwood of industrial importance, used for veneers and plywood production. Various conditions of Steam Explosion (SE) treatment (temperature, residence time, pH) have been applied on okoume co-products, sapwood (SW) and heatwood (HW) for the extraction of polymeric hemicelluloses. Conventional extractions with alkali or dimethyl sulfoxide (DMSO) were also performed from delignified SW and HW for comparison. The hemicelluloses extracts have been characterized by HSQC-NMR, FTIR, size exclusion chromatography. The acetyl contents have been determined by HPLC after saponification and from HSQC spectra. Using basic impregnation prior to SE (NaOH-SE), high molecular mass glucuronoxylans (GX, Mw = 65-100 KDa) were recovered in 3-6 % yields. A neutral impregnation (H 2 O-SE) produced O2 and/or O3 acetylated GX and glucomannans (GM), preserving the acetyl moieties in a greater extent compared to the mild DMSO extraction (% Ac ≈ 6.6-8.4% and 1.0-4.1 % w/w respectively). This study provides insights on the composition of SW and HW okoume with a view to further innovative processing and valorization including the preparation of films with advanced properties for food packaging.