  We discuss a mechanism for producing baryon density perturbations during
inflationary stage and study the evolution of the baryon charge density
distribution in the framework of the low temperature baryogenesis scenario.
This mechanism may be important for the large scale structure formation of the
Universe and particularly, may be essential for understanding the existence of
a characteristic scale of 130h^{-1} Mpc (comoving size) in the distribution of
the visible matter.
  The detailed analysis showed that both the observed very large scale of the
visible matter distribution in the Universe and the observed baryon asymmetry
value could naturally appear as a result of the evolution of a complex scalar
field condensate, formed at the inflationary stage.
  Moreover, according to our model, the visible part of the Universe at present
may consist of baryonic and antibaryonic regions, sufficiently separated, so
that annihilation radiation is not observed.
