Silva, Teresa Lopes daSantos, A.R.Gomes, R.Reis, Alberto2018-09-052018-09-052018Silva, Teresa Lopes da; Santos, A.R.; Gomes, R.; Reis, A. - Valorizing fish canning industry by-products to produce omega-3 compounds and biodiesel. In: Environmental Technology & Innovation, 2018, Vol. 9, p. 74–812352-1864http://hdl.handle.net/10400.9/3047ABSTRACT: A novel, inexpensive strategy was used to valorize fish canning industry by-products, aiming at ω-3 compounds and biodiesel production. Winterization and urea complexation methods were used to fraction the oil extracted from fish canning industry wastes. Urea complexation was the most efficient method, producing a liquid fraction with 99.99% (w/w) of polyunsaturated fatty acid methyl esters (FAME) when methanol was used as solvent, and a solid fraction with 79.94% (w/w) of saturated and monosaturated FAME when ethanol was used as solvent, which was considered a potential feedstock for biodiesel production. The liquid fraction was further analysed by preparative HPLC analysis, producing an oil fraction with 99.44% (w/w) ω-3 compounds, containing 89.25% eicosapentaenoic acid (EPA) (w/w). The method here described has an enormous potential for fish canning industry waste valorization as it is easily scale-up, foreseeing an environmentally sustainable society.engBiodieselFish canning wastesOmega-3Waste valorizationjournal articledoi.org/10.1016/j.eti.2017.11.002