FN Archimer Export Format PT J TI A New Process for Extracting Alginates from Laminaria digitata: Reactive Extrusion BT AF VAUCHEL, Peggy KAAS, Raymond ARHALIASS, Abdellah BARON, Regis LEGRAND, Jack AS 1:1;2:3;3:1;4:2;5:1; FF 1:;2:PDG-DOP-DCB-BM-PBA;3:;4:PDG-DOP-DCN-STAM;5:; C1 Univ Nantes, CNRS, GEPEA, UMR 6144,CRTT, F-44602 St Nazaire, France. IFREMER, Dept Sci & Tech Alimentaires Marines, F-44311 Nantes 03, France. IFREMER, Lab Physiol & Biotechnol Algues, F-44311 Nantes 03, France. C2 UNIV NANTES, FRANCE IFREMER, FRANCE IFREMER, FRANCE SI NANTES SE PDG-DOP-DCB-BM-PBA PDG-DOP-DCN-STAM IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 2.238 TC 63 UR https://archimer.ifremer.fr/doc/2008/publication-6255.pdf LA English DT Article DE ;Intrinsic viscosity;Reactive extrusion;Laminaria digitata;Alkaline extraction;Alginate AB 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 properties of the product were all enhanced. Hence, reactive extrusion could be an interesting alternative process for the alginate industry to produce high rheological properties alginates. PY 2008 PD SEP SO Food and Bioprocess Technology SN 1935-5130 PU Springer VL 1 IS 3 UT 000262641600009 BP 297 EP 300 DI 10.1007/s11947-008-0082-x ID 6255 ER EF