Obtaining EPA-rich polar lipids from microalga Nannochloropsis sp. by silica-gel chromatography using non-toxic solvents - Sánchez, M.D.M.; Callejón, M.J.J.; Medina, A.R.; Moreno, P.A.G.; López, E.N.; Cerdán, L.E.; Grima, E.M. (Biomass Conversion and Biorefinery, 2022)