title: An environmental management industrial solution for the treatment and reuse of mussel wastewaters.
abstract: In the North-West of Spain, the annual production of mussel is 2×10(6)t (35% of the world). The industrial thermal treatment of mussels generates between 300 and 400L/t wastewaters that are continuously disposed into the sea without previous treatment and or further reuse. These effluents, relatively rich in organic matter (7g glycogen/L and 25g COD/L), contribute to the progressive deterioration of the marine ecosystem. We wish to suggest a biotechnological process, based on a laboratory optimization and industrial pre-scale trials, to transform these industrial effluents into a growth culture medium to produce microbial biomass. Furthermore, this biomass is isolated and treated by different optimized separation and purification processes to produce several bioproducts: 1) single cell protein; 2) cell wall material with a high content in glucans and glycoproteins 3) fractions of 1,3-β-glucans and mannoproteins from yeast cell walls hydrolysis; and 4) a potential antioxidant extract. Finally, the authors propose a scaled process for its industrial application. In consequence, we believe that this work provides an environmentally friendly, eco-designed and profitable solution that allows integrating the mussel industry into the ecosystem in a sustainable way.
authors: Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain. Electronic address: michaelumangelum@gmail.com.
authors: M A
authors: MA
authors: Prieto
authors: Faculty of Education and Sport, University of Vigo, Pontevedra, Spain.
authors: I
authors: I
authors: Prieto
authors: Grupo de Reciclado y Valorización de Materiales Residuales (REVAL), Instituto de Investigacións Mariñas (IIM-CSIC), Vigo 36208, Spain.
authors: J A
authors: JA
authors: Vázquez
authors: Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança, Campus de Santa Apolónia, 1172, 5301-855 Bragança, Portugal.
authors: Isabel C F R
authors: IC
authors: Ferreira
mesh_terms: D000818:Animals; D017756:Aquaculture / Q000379:methods*; D049872:Bivalvia; D007220:Industrial Waste / Q000032:analysis*; D013030:Spain; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000032:analysis*
chemical_list: D007220:Industrial Waste; D062065:Wastewater
keywords: Bioseparation process; Industrial waste; Isolation and purification; Mussel processing wastewaters; Optimization; Sustainable industrial process