  The applicability of the effective models to the description of baryons and
the behaviour of ratios of strange baryons to pions is discussed. In the
framework of the EPNJL model, the Bethe - Salpeter equation is used to find
masses of baryons, which are considered as diquark-quark state. Baryon melting
is discussed at a finite chemical potential and a flavor dependence of the
hadronic deconfinement temperature is pointed. It is shown that the description
of the diquark-quark state at finite chemical potential is limited due to the
occurrence of the Bose condensate. This effect is strongly manifested in the
description of light diquarks and baryons. Both $\Lambda^0/\pi^+$ and
$\Xi^-/\pi^+$ ratios show a sharp behaviour as functions of $T/\mu_B$ variable,
where T and $\mu_B$ are calculated along the melting lines.
