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Assessment of the production of oligomeric compounds from sugar beet pulp / Martina Martinez in Industrial & engineering chemistry research, Vol. 48 N° 10 (Mai 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 10 (Mai 2009) . - pp. 4681–4687 Titre : Assessment of the production of oligomeric compounds from sugar beet pulp Type de document : texte imprimé Auteurs : Martina Martinez, Auteur ; Beatriz Gullón, Auteur ; Henk A. Schols, Auteur Année de publication : 2009 Article en page(s) : pp. 4681–4687 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Sugar  beet  pulp  Oligogalacturonides  Arabinooligosaccharides Résumé : In order to obtain pectin-derived oligosaccharides (mainly arabinooligosaccharides and oligogalacturonides), samples of sugar beet pulp (SBP) were subjected to hydrothermal processing under nonisothermal conditions. Experiments carried out to reach temperatures in the range 160−175 °C (corresponding to values of the severity factor R0 in the range 287−835 min) led to comparatively high concentrations of both oligogalacturonides and arabinooligosaccharides. When SBP was treated to achieve a maximum temperature of 160 °C (R0 = 287 min) or 163 °C (R0 = 357 min), the overall amount of oligomers present in the reaction liquors recovered by pressing accounted for 31.2 and 29.9 g/100 g of oven-dried SBP, respectively, with a limited amount of nonvolatile impurities (about 0.15 g/g of oven-dried matter) and a mass ratio of arabinooligosaccharides/oligogalacturonides of about 1:1. Spent solids were washed with water, and the washing liquors were assayed for oligomers. Recovery of washing liquors would increase the overall yield process by 10%, to reach near 33 g/100 g of oven-dried SBP. Washed spent solids (with increased cellulose content) were obtained as a process byproduct. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8017753 [article] Assessment of the production of oligomeric compounds from sugar beet pulp [texte imprimé] / Martina Martinez, Auteur ; Beatriz Gullón, Auteur ; Henk A. Schols, Auteur . - 2009 . - pp. 4681–4687. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 10 (Mai 2009) . - pp. 4681–4687 Mots-clés : Sugar  beet  pulp  Oligogalacturonides  Arabinooligosaccharides Résumé : In order to obtain pectin-derived oligosaccharides (mainly arabinooligosaccharides and oligogalacturonides), samples of sugar beet pulp (SBP) were subjected to hydrothermal processing under nonisothermal conditions. Experiments carried out to reach temperatures in the range 160−175 °C (corresponding to values of the severity factor R0 in the range 287−835 min) led to comparatively high concentrations of both oligogalacturonides and arabinooligosaccharides. When SBP was treated to achieve a maximum temperature of 160 °C (R0 = 287 min) or 163 °C (R0 = 357 min), the overall amount of oligomers present in the reaction liquors recovered by pressing accounted for 31.2 and 29.9 g/100 g of oven-dried SBP, respectively, with a limited amount of nonvolatile impurities (about 0.15 g/g of oven-dried matter) and a mass ratio of arabinooligosaccharides/oligogalacturonides of about 1:1. Spent solids were washed with water, and the washing liquors were assayed for oligomers. Recovery of washing liquors would increase the overall yield process by 10%, to reach near 33 g/100 g of oven-dried SBP. Washed spent solids (with increased cellulose content) were obtained as a process byproduct. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8017753