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Registros recuperados: 41 | |
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Vauchel, Peggy; Kaas, Raymond; Arhaliass, Abdellah; Baron, Regis; Legrand, Julien. |
Alginates are natural polysaccharides that are extracted from brown seaweeds and widely used for their rheological properties. The main step in the extraction protocol used in the alginate industry is that of alkaline extraction. A batch process is used for this step, which is time-, water-, and reactant-consuming. The possibility of extracting by reactive extrusion was investigated. The reactive extrusion process appeared to be more efficient than the batch process for the alkaline extraction of alginates from Laminaria digitata in several key ways: Time demand is reduced from about an hour to only few minutes, water and reactant requirements are divided by more than a factor 2, extraction yield is 15% higher (relative enhancement), and the rheological... |
Tipo: Text |
Palavras-chave: Intrinsic viscosity; Reactive extrusion; Laminaria digitata; Alkaline extraction; Alginate. |
Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-6255.pdf |
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Sarradin, Pierre-marie; Legrand, Julien; Cannat, Mathilde. |
La série de campagnes MoMARSAT assure la maintenance annuelle de l'observatoire EMSO-Açores sur le champ hydrothermal Lucky Strike (https://doi.org/10.18142/130). Cet observatoire fond de mer est opéré depuis 2010 et vise à acquérir des séries temporelles ≥10 ans sur les processus hydrothermaux, tectoniques, volcaniques et les écosystèmes d'un site hydrothermal actif de la dorsale médio-Atlantique. Il fait partie du réseau européen EMSO (European Multidiciplinary Seafloor and water column Observatory-ERIC - http://emso.eu/), soutenu en France par l'Infrastructure de Recherche (MESR) EMSO-FR dont le pilotage est assuré par une collaboration Ifremer-CNRS. Ce document présente le compte rendu des opérations effectuées durant la campagne MoMARSAT2019 qui s'est... |
Tipo: Text |
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Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00593/70537/68703.pdf |
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Registros recuperados: 41 | |
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