  In this work we investigate the influence of a Fermi velocity modulation on
the Fano factor of periodic and quasi-periodic graphene superlattices. We
consider the continuum model and use the transfer matrix method to solve the
Dirac-like equation for graphene where the electrostatic potential, energy gap
and Fermi velocity are piecewise constant functions of the position x. We found
that in the presence of an energy gap, it is possible to tune the energy of the
Fano factor peak and consequently the location of the Dirac point, by a
modulations in the Fermi velocity. Hence, the peak of the Fano factor can be
used experimentally to identify the Dirac point. We show that for higher values
of the Fermi velocity the Fano factor goes below 1/3 in the Dirac point.
Furthermore, we show that in periodic superlattices the location of Fano factor
peaks is symmetric when the Fermi velocity $v_A$ and $v_B$ is exchanged,
however by introducing quasi-periodicity the symmetry is lost. The Fano factor
usually holds a universal value for a specific transport regime, which reveals
that the possibility of controlling it in graphene is a notable result.
