  We have discussed dynamical behavior of strange quark matter components, in
particular the effects of density dependent quark mass on the equation of state
of strange quark matter. Dynamical masses of quarks have been computed within
Nambu-Jona-Lasinio (NJL) model, then we have done the strange quark matter
calculations employing the MIT bag model with these dynamical masses. For the
sake of comparing dynamical mass interaction with QCD quark-quark interaction,
we have considered the one-gluon-exchange term as the effective interaction
between quarks for MIT bag model. Our dynamical approach illustrates an
improvement for the obtained values of equation of state. We have also
investigated the structure of strange quark star using
Tolman-Oppenheimer-Volkoff (TOV) equations for all applied models. Our results
show that the dynamical mass interaction leads to lower values for the
gravitational mass.
