FN Archimer Export Format PT J TI Recovery of valuable soluble compounds from washing waters generated during small fatty pelagic surimi processing by membrane processes BT AF DUMAY, Justine RADIER, Severine BARNATHAN, Gilles BERGE, Jean-Pascal JAOUEN, Pascal AS 1:1;2:1;3:2;4:1;5:3; FF 1:PDG-DOP-DCN-STAM;2:;3:;4:PDG-DOP-DCN-STAM;5:; C1 IFREMER, Ctr Nantes, F-44311 Nantes 3, France. Nantes Atlant Univ, SMAB, Nantes, France. Nantes Atlant Univ, CNRS, UMR 6144, GEPEA,CRTT, St Nazaire, France. C2 IFREMER, FRANCE UNIV NANTES, FRANCE UNIV NANTES, FRANCE SI NANTES SE PDG-DOP-DCN-STAM IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 0.674 TC 19 UR https://archimer.ifremer.fr/doc/2008/publication-4359.pdf LA English DT Article DE ;Fish oil;Regenerated cellulose;Surimi wastewater;Enzymatic hydrolysis;Ultrafiltration AB This work focuses on the treatment of washing waters coming from surimi manufacturing using ultrafiltration technology at a laboratory scale. Four membrane materials (poly-ether sulfone, polyacrilonytrile, poly vinylidene fluoride and regenerated cellulose) and 5 Molecular Weight Cut-Off (from 3 to 100 kDa) have been studied at bench laboratory scale using the pilot Rayflow (R) 100, commercialised by Rhodia Orelis. The investigation deals with the ability for membranes to offer a high retention of biochemical compounds (proteins and lipids). Results obtained during adsorption tests showed that the regenerated cellulose material seems to be the most appropriate with regards to pore size reduction due to the protein-adsorption. During the ultrafiltration of the washing water, the regenerated cellulose material leads to the best results, followed by the polyacrylonitrile and poly-vinylidene fluoride materials. Poor results were obtained with polyether sulfone membrane. Compared to the other materials, the regenerated cellulose is the easiest to regenerate, with minimal cleaning water and no chemical treatment necessary. Biochemical characterization of the fractions generated during the ultrafiltration with the polyacrilonytrile, poly vinylidene fluoride and regenerated cellulose membranes showed that all the membranes provided a high recovery rate of the lipids and proteins. The 10 kDa regenerated cellulose membrane had the highest performance and was further evaluated. With such a treatment, the chemical oxygen demand was reduced by 75%. By performing hydrolysis followed by a centrifugation, biochemical composition of the sludge and liquid fraction were modified, producing an insoluble fraction containing fats and few proteins and a soluble fraction containing proteins and few fats. The sludge, initially insoluble, was mainly solubilized during hydrolysis, and lipids and peptides were concentrated by ultrafiltration. PY 2008 PD APR SO Environmental Science & Technology SN 0959-3330 PU American Chemical Society VL 29 IS 4 UT 000256959400010 BP 451 EP 461 DI 10.1080/09593330801983912 ID 4359 ER EF