Hydrodynamic performance of 3D printed turbulence promoters in cross-flow ultrafiltrations of Psidium myrtoides extract

•Bioactive compounds from araça fruit extract were concentrated by ultrafiltration.•Turbulence promoters were designed by using by the 3D printing technology.•Velocity distributions were examined by computational fluid dynamics (CFD).•Cylindrical turbulence promoters provided a flux enhancement by approximately 78 %.