The active galactic nuclei (AGNs) and starburst galaxies are compared to the central part of the Milky Way known as the Central Molecular Zone. We discuss the formation and evolution of the galactic nuclei and we explore the possibility of feeding the super-massive black holes (SMBHs) in galactic centers by expanding supernova (SN) remnants. We use the numerical simulations in homogeneous and in the inhomogeneous turbulent medium showing that the supernovae occuring at specific places near the galaxy rotational axis can feed the central accretion disk surrounding the SMBH. The mass deposited into the central parsec by individual supernovae varies between 10 and 1000 solar masses, depending on the ambient density and the SN distribution in space. Supernovae occuring in the aftermath of a starburst event near the galactic center can supply within 30 Myrs 10³ – 10⁶ M_⊙ into the central parsec. The fate of that mass splits between the growth of the SMBH and outflow from the nuclear disk.