2012
DOI: 10.15376/biores.7.4.4501-4516
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Separation of Galactoglucomannans, Lignin, and Lignin-Carbohydrate Complexes From Hot-Water-Extracted Norway Spruce by Cross-Flow Filtration and Adsorption Chromatography

Abstract: A simple method to simultaneously recover polymeric carbohydrates, mainly galactoglucomannans (GGM), lignin, and lignin-carbohydrate complex (LCC) from hot-water-extracted Norway spruce wood is presented. The isolation method consists of cross-flow filtration, where high and low molecular mass species are removed, followed by fixedbed adsorption on a hydrophobic polymeric resin (XAD-16) to remove lignins and lignans. In the second step of fixed-bed adsorption, a phenylic reversed-phase analytical chromatograph… Show more

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Cited by 27 publications
(17 citation statements)
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“…14 Westerberg et al also reached a good separation of lignin, hemicelluloses and LCCs from hot-water extracted Norway spruce by combining membrane filtration and adsorption based processes. 15 As depicted by those examples, an increasing interest for LCCs recovery from autohydrolyzates or hot water extraction liquor from biorefineries pretreatments can clearly be noted at this time. Additionally, membrane filtration processes have also been successfully applied for the recovery of LCCs from the liquid effluents of the pulp and paper industry.…”
Section: Introduction Lignin Carbohydrate Complexes (Lccs) Have Been mentioning
confidence: 89%
“…14 Westerberg et al also reached a good separation of lignin, hemicelluloses and LCCs from hot-water extracted Norway spruce by combining membrane filtration and adsorption based processes. 15 As depicted by those examples, an increasing interest for LCCs recovery from autohydrolyzates or hot water extraction liquor from biorefineries pretreatments can clearly be noted at this time. Additionally, membrane filtration processes have also been successfully applied for the recovery of LCCs from the liquid effluents of the pulp and paper industry.…”
Section: Introduction Lignin Carbohydrate Complexes (Lccs) Have Been mentioning
confidence: 89%
“…In previous work, it was reported that even though PS-DVB resin shows a low a nity for carbohydrates, some of high molecular weight carbohydrate linked to lignin can still be adsorbed by the resin [27,[29][30]. To reduce the loss of sugars in PHL and maximize the quantity of available fermentation substrate, the oligosaccharides in PHL were hydrolyzed into monosaccharides.…”
Section: Acid Hydrolysis Of the Phlmentioning
confidence: 99%
“…Different from the aforementioned separation methods, the adsorbed lignin in the resin can be desorbed and potentially processed for further application. In most published works, PS-DVB resin was only used to purify biomass hydrolyzate to obtain lignin for further applying or to obtain puri ed lignin and lignin-carbohydrate complexes for structural analysis [18,27,29,30]. Few studies have used PS-DVB resin as a puri cation technology to remove the soluble lignin and carbohydrate dehydration products in PHL to improve its fermentability for ethanol and XA production.…”
Section: Introductionmentioning
confidence: 99%
“…The utilization of biomass, especially wood, as a renewable feedstock for bio-energy and value-added bio-products is a central step in reducing dependency on fossil fuels (Gomes et al 2014). In a material biorefinery (Mattsson et al 2017), it is desirable to obtain high molecular weight fractions of the main constituents of the wood cell wall: cellulose, hemicellulose, and lignin. The larger fractions have inherent valorization; however, to obtain these fractions from the highly recalcitrant cell wall in wood is quite difficult.…”
Section: Introductionmentioning
confidence: 99%